I like how the whiteboard takes up the whole screen, no need for wasted space here. Quality, underrated program!
@sixunity11713 жыл бұрын
every pixel is important here
@ivanbrasla3 жыл бұрын
"Underrated" 2.91M subscribers lol
@sanchitrawat80512 жыл бұрын
@@ivanbrasla Considering some car reviewers' channels which have way more subscribers, it's pretty underrated
@hakankarakurt11003 жыл бұрын
Man I like this guy. I’ve gone through my last 7 years or so with him. Through college and now master’s. Hey Jason if you read this know that I sincerely thank you for your work. Being a mechanical engineer myself, I love how you teach without losing relevance even if you don’t use much math/calculus. Please never get rid of that whiteboard. I would nominate you for one of my new gen top gear trio. That’s pretty much the highest car-guy honor I know...
@Hillwatch2 жыл бұрын
I second this nomination
@Crunch_dGH Жыл бұрын
Burn = resource forever gone from multiple uses. Electric = > 90% recyclable battery materials, plus several sustainable non-polluting alternative sources. So, just curious, can opposing piston engines be scaled up to drive ocean-going shippers? Then again, what justifies the burning, that makes “efficiency” go infinitely negative?
@Anohaxer Жыл бұрын
@@Crunch_dGH Practical considerations. Ocean-going shippers can't reasonably use electricity, the mass-power density is too low. Besides, the lithium required is uneconomical. If we take something like the CMA CGM Benjamin Franklin, that carries 16 000 m³ of fuel oil. This is a modern, large container ship carrying 18 kTEU, with a 63 MW turbocharged diesel engine. As a diesel engine, it is multi-fuel, and can burn anything from heavy fuel oil to methanol to LNG or even hydrogen. As a neat solution for the sake of comparison, we can take standard European automotive diesel fuel, with a density of 845 kg/m³ and 43 MJ/kg of specific energy. Taking into account the fact that marine two-stroke diesel engines such as the one on the Benjamin Franklin have an efficiency around 50%, we can calculate that the useful energy stored on the Benjamin Franklin in the form of diesel oil is 16000 m³ · 845 kg/m³ · 43 MJ/kg *0.5 = 291 TJ, for a weight 13 520 tonnes. To store that same amount in lithium-ion, which we optimistically give a specific energy of 1080 kJ/kg (300 Wh/kg, realistically current consumer technology hits around 265 Wh/kg or a bit under 1 MJ/kg), with 100% charge/discharge efficiency (realistically 80-90%), it will take 296 444 tonnes of lithium-ion batteries to give that same energy. Now, that's 13 520 tonnes versus 296 444 tonnes. But perhaps we are willing to go with the larger tonnage, since it's green. There are, however, several issues with this. Firstly, the need for space. Converting this to an equivalent of cargo containers required to carry the batteries, each heavy tested 20-foot container can carry a maximum net load of 28 tonnes. That gives us a 9 623 TEU equivalent space, over half of the cargo capacity on the Benjamin Franklin, simply for batteries, by volume. By a more reasonable calculation, we havea density of around 2.5 MJ/l for pure lithium-ion batteries, which means 116 400 m³ of volume, or optimistically 2 700 TEU, still 15% of the cargo volume and many, many times the current fuel tank volume. The second issue I see is the economics. With current (quite low) battery prices, those 296 444 tonnes of batteries are $10.67B USD. Nearly eleven billion dollars. Total construction contracts on ships of these sizes are usually in the $2-3B USD range, with ship materials accounting for maybe $300M USD and the rest being labour, design, and profit. For the energy supply materials alone to be four to six times that is unacceptable. From a purely theoretical, ideal standpoint, storing one MJ of energy takes around 20 g of elemental lithium metal as part of that kilogram of battery (yes, seriously, 2% by weight). That's 5 280 tonnes purely in lithium metal, or $227M USD at current market price. That alone is worth all the steel in a ship of this size. The third issue is that a ship of this size is not enough. The deadweight tonnage of the Benjamin Franklin is 185 000 DWT. That's effectively the maximum permissible weight capacity of the ship, including all cargo, fuel oil, the mass of the ship itself, fresh water, ballast water, provisions, possible passengers and crew. She will never surpass this weight without finding herself at the bottom of the sea. She can't lift 296 444 tonnes of batteries. In fact, 296 444 tonnes of batteries is well over twice the weight of the ship itself, the pure empty displacement. This is one of the largest cargo ships ever put to sea. She couldn't carry the batteries required to fuel herself, or even half of that. It doesn't really matter whether you can make more efficient diesel engines fit large marine vessels. Because you can never make all-electric power systems fit large, long-range marine vessels. This is why we use diesel engines, because diesel is the most efficient, environmentally-friendly choice, and as it is multi-fuel, it can be easily fueled with renewable fuels, such as Neste Renewable Diesel. This is by far the better solution to marine vessels. There is no competition, in a free market, electric marine propulsion will not take off until lithium is as common as sand and batteries can store at least ten times what they store currently.
@joshuagibson25203 жыл бұрын
I can never decide if he's 25 or 45.
@BigCat5533 жыл бұрын
He is 300 years old, duh. That is why he knows so much...
@davidwong8253 жыл бұрын
He is an alchemist...only role playing as an engineer 😄
@JoshuaTootell3 жыл бұрын
Seeing as how he has a Miata, be could also be 65.
@SolaricAngel1163 жыл бұрын
@@JoshuaTootell Or 85.
@siimu1113 жыл бұрын
Asking: "How old are you? Jason: "yes"
@DanielJaegerFilms3 жыл бұрын
It’s interesting to think a gasoline engine is actually working hard at idle. Never thought about it that way before.
@bigman72933 жыл бұрын
Oh yeah, high vacuum and the engine is trying to suck air in when it’s very difficult
@thepurdychannel88663 жыл бұрын
What about a diesel engine
@grandrapids573 жыл бұрын
true although it also can depend on the style of comparison..At idle it is using rather little fuel. An instant fuel usage gauge will show, like on my car, 35mpg at 40mph, but 3mpg under full throttle.
@thepurdychannel88663 жыл бұрын
@@grandrapids57 wow
@spamcan92083 жыл бұрын
@@thepurdychannel8866 they don't have a throttle plate to close for a piston to pull a vacuum against afaik.
@arpitkhole71003 жыл бұрын
Just looking at that whiteboard is pleasing
@CorneliusJefferson3 жыл бұрын
Right? His whiteboard skills are top tier
@abrahamking39503 жыл бұрын
Agreed!
@bumbr073 жыл бұрын
could you image some PPT instead..omg
@steveschu3 жыл бұрын
Indeed
@deanking64053 жыл бұрын
Wish my profs had the whiteboard skills he has tbh
@kristapsvalainis16713 жыл бұрын
I've heard about running an old car until it dies being more environmentally friendly than buying a new e/v. Is this actually true? Would love to see Engineering Explained guy going over the statistics of this issue
@louiscardinale17013 жыл бұрын
Jason, I watched an episode of Autoline last year where discussed about plasma ignition. Any thoughts?
@creatineenjoyer73453 жыл бұрын
Depends if its an old v8 it will continue polluting. If its an old 4 cylinder, keep it till it dies. Also not all new cars take so much carbon to produce. Simple cars like VW Up or Smart ForTwo dont create huge carbon footprint during production
@kristapsvalainis16713 жыл бұрын
@@creatineenjoyer7345 I live in Europe, V8s aren't particularly popular, to the point that I don't know anyone who has owned a V8 car. And while a VW Up doesn't create huge emmisions in the manufacturing process, it's a very tiny and impractical car, so immediately doesn't fit my use cases
@EngineeringExplained3 жыл бұрын
Answered here (starts at 9 mins 30 secs), however a video dedicated to the subject could be interesting! kzfaq.info/get/bejne/bLiYp8yBysy6qoE.html
@arog74933 жыл бұрын
I'm fairly certain that question was answered in one of his videos in the EV series he made a while ago. Feel like I can remember that at least.
@polsal693 жыл бұрын
Downside for RCCI engine was that it requires two different fuel systems. It's not that big of a deal as it sounds in America. Poland is third country in the world counting cars with dual fuel systems (around 13% of all cars on the road). Most of them are petrol engines with additional LPG (liquefied petroleum gas, autogas) system installed. People install it because of cost efficiency (LPG has different taxes). Engine consume around 25% more fuel (1.25L of gas instead of 1L of petrol), but gas is 50% cheaper then petrol. Whole installation costs around 800 USD and you can save this amount of money under 2 years. I drive Jeep XJ with 4.0L engine and LPG installation. It has 330k kilometers on the clock and works like a charm. Car has standard 70L petrol tank and 70L gas tank in the trunk (that can be filled up to 54L only because of safety regulations). Engine can work on both, normally it starts on petrol and switch to gas when it heats up to 40 degrees Celsius required to efficiently vaporize liquid gas in the system. Dual fuel is not that big of a drawback :)
@peterm38613 жыл бұрын
I've always liked you Polish guys with your LPG conversions, very smart i think. Greets from Germany :)
@Phenx3 жыл бұрын
Not only Poland but in Brazil also there is a lot of cars running on LPG, cool to know that are other countries that also use it in cars
@volodumurkalunyak46513 жыл бұрын
In Poland you can have LPG/GAS car that run's fine using only gas and no LPG and runs fine using LPG and no gas. RCCI works different, it requres BOTH gas and diesel fuel to run.
@polsal693 жыл бұрын
@@volodumurkalunyak4651 absolutely right. In fact, you can't start cold engine on LPG, so you need to have at least a little bit of petrol for first few minutes of operation. But you are correct, car is driving on one of 2 in the same time. My point was that as it was explained in the video as it would be a big drawback, more complexity of the fuel system, more inconvinient for people to fill up 2 tabks on petrol station. Both points are true, but from owner experience, it's doable :) 13% of car owners in Poland are proof that it's also doable on bigger scale.
@Cabalerio3 жыл бұрын
In Poland we use diesel cars with LPG that is injected in to the intake, so the 'future' technology is actually old. 🙂
@peterm38613 жыл бұрын
Is this technology under development currently to be used in future engines or is it available as a aftermarket system for older cars? Greets from Germany :)
@Cabalerio3 жыл бұрын
They said that at 120km/h it burns 3l of diesel and 1.5l of LPG. Probably in Germany you would like to use CNG instead of LPG, but I think there is no difference from installation standpoint.
@peterm38613 жыл бұрын
@@Cabalerio Sounds very interesting. So LPG is injected in addition to the diesel? No we also have LPG here, I think more than CNG... But who knows how long they will continue the tax advantages on LPG. If they stop it one day it wouldn't make sense anymore to use LPG. They did the same with E85 a few years ago... Tax advantages were stopped and there was no E85 anymore
@BigUriel3 жыл бұрын
@@peterm3861 LPG/CNG and Diesel hybrid systems have been around for decades. It's just not very common. The engine runs on Diesel at low loads and then as load increases LPG/CNG is added to the intake. A small amount of Diesel continues to be injected to initiate the combustion, otherwise the LPG/CNG on its own will either not burn at all or knock.
@alexs31873 жыл бұрын
Yeah I heard about this technology about 15 years ago. I didn’t think many people did it. I think some people in Australia had their 4x4s converted for it. LPG really died down there in the last decade.
@utharaptortrex3 жыл бұрын
An HCCI engine seems like a good solution for an ultra efficient, low emitions range extender hybrid. When you need the engine, it just starts up, goes to it's most efficent rpm and stays there until the battery is charged and then shuts off. No need for great timming control since it stays at a constant rpm and load.
@windshield113 жыл бұрын
Yep, you can use a CVT and one of those.. ez fixed rpm
@cbracing8083 жыл бұрын
Yup, pretty sure that's what mazda uses already.
@ritwikreddy56703 жыл бұрын
HCCI is mostly used in industrial applications with a constant rpm.
@madisonrollings18453 жыл бұрын
@@ritwikreddy5670 What is a hybrid but a mobile industrial generator?
@jeffbeasley82353 жыл бұрын
Engine speed is one factor in determining actuator positions in an engine, but there are so many other inputs and outputs in a modern combustion engine, it will make your head spin. For HCCI to work well, you really need an exact charge temperature when the charge is reaching TDC. That is a function of ambient temperature, ambient pressure, coolant temperature, valve lift and timing (dynamic compression ratio and valve overlap), amount of air going into the cylinder (it is not trivial to get a constant load, especially if you're allowed to be at different altitudes), amount of fuel injected... If you want to turbocharge to get more efficiency or better consistency of load at various altitudes, now you have even more things to control that all affect your charge temperature, valve overlap now has an even more massive impact on in-cylinder temps too, and those cylinder temps affect your combustion timing, which affect your exhaust temps, which feed back into the in-cylinder temps. If you want to make HCCI really work properly, you'd need a stationary engine that never changes in altitude, in a temperature and humidity controlled room, that never has to warm up, and is calibrated perfectly for those conditions. There's a reason that the closest thing to this in a road car of any kind is Mazda's SPCCI tech.
@FELiPES1013 жыл бұрын
So HCCI and PCCI are more industrial applications where they just run for hours or days at one rpm rather than an automotive applicaition
@HankBizzle3 жыл бұрын
Could make for decent generators but not much else.
@ferrumignis3 жыл бұрын
@@HankBizzle Fine for a hybrid range extender, or possibly in conjunction with a CVT.
@stefanguels3 жыл бұрын
@@HankBizzle That would qualify them for use as range extenders to charge batteries in vehicles with an electric drive train
@streamin163 жыл бұрын
Would love your take on the metallurgy required for these engines and how that holds back commercialization. My understanding is that the flame fronts of SI and CI engines are relatively gentle on the cylinders, pistons, heads, and valves whereas the explosions happening inside the latter 3 engines can wreck havoc on those surfaces.
@setharcher58693 жыл бұрын
Two similar subjects I'd be interested in: 1) if 93 octane were the standard instead of 87, how much more efficient could the average vehicle be? 2) If engines were designed for e85, how efficient could they be?
@neutronpcxt372 Жыл бұрын
1) Not a significant difference, but enough not to be negligible. 2) They would become more efficient/kWh, but far less efficient/fuel consumed, since ethanol has lower energy density than gasoline.
@FSXgta3 жыл бұрын
Im almost always accelerating at full throttle. Because over here in europe we have cars that barely have enough power to start rolling
@kevinmills52933 жыл бұрын
Ain’t that the truth.
@niklasstrassl79093 жыл бұрын
60hp gang
@R3Cat3 жыл бұрын
God no, 150ps minimum
@kevinmills52933 жыл бұрын
@@R3Cat I’ve a 155ps (allegedly) Puma and I still have to change down to get up the hills on some motorways.
@user-yn5sk5ru5g3 жыл бұрын
I drove 1108cc for 10 years 👌
@matt_b...3 жыл бұрын
I just want to point out: 2.91 ...MILLION...subscribers. Jason, not too shabby. You may want to consider this whole KZfaq thing full time! 😉
@ivanbrasla3 жыл бұрын
Not sure if /s or not, but i think he already does. There is a video where he talks about this i'm sure
@JSBHP20173 жыл бұрын
I'm studying automotive engineering and one of my professors who is researching about combustion engines and varieties of fuel for the last 30+ years said, that it's not the engine thats bad for us, it's the fuel we're using and there's no point in raging and killing off something that works so well and maintains so many jobs all over the world.
@andrasbiro30073 жыл бұрын
Except electric motors are far superior. And keeping jobs is no reason to keep an inferior technology, or we would still riding horses.
@christopherayala46193 жыл бұрын
Facts
@ZOrdZ3 жыл бұрын
As always a great video. How about making one about large marine engines with supposedly 50% + efficiency?
@SamuelsShea3 жыл бұрын
Would love to see a video on Porsche's eFuel endeavor.
@bentullett60683 жыл бұрын
I have noticed that it's not just Porsche being interested in this either as there are loads of companies joining in with the Siemens carbon capturing project like Porsche have as the byproducts of carbon captur is the synthetic fuel and hydrogen. There have been other experiments where both hydrogen and and a green fuel has been created by sunlight.
@daszieher3 жыл бұрын
This is going to be hotter than hydrogen.
@kamenriderblade20993 жыл бұрын
Carbon Capture & Synthetic Fuels is the future of ICE on the Fuel End of the Equation.
@daszieher3 жыл бұрын
@@kamenriderblade2099 good thing about that: most efuels coming up are fully backwards compatible, so no issues like pure ethanol.
@christopherayala46193 жыл бұрын
Yes he should make that vid
@henriquerudolftutumi90893 жыл бұрын
There are some trucks in Brazil that run on "RCCI" using CNG and Diesel. They have aftermarket adaptations to run with both fuels.
@fitz35403 жыл бұрын
It's a popular modification in the performance diesel world. Companies make LPG injection kits for all the American diesel truck brands
@SOHCGT963 жыл бұрын
There is a company near me that sells generators that can run on either or both fuel at the same time. Natural gas is already hooked up to most businesses for heating anyway and its cheaper and cleaner than diesel, but its good to have a tank of diesel for backup! Running together works really well though.
@electric74873 жыл бұрын
They do this in marine Diesels as well. First with LPG and LNG, and now they're looking into AMMONIA as the low-reactivity component. They could be running on something like 80% ammonia and 20% crude oil which would cut down on CO2 emissions significantly. The ammonia would be injected into the intake ports, and the petroleum (doesn't matter whether it's light or heavy, sweet or sour) would be injected in the exact same way as if the engine were a pure Diesel engine. This would not only cut CO2 emissions, but it would make exhaust gas scrubbers much cheaper to run. An issue with this would be the potential increase in NOx emissions caused by the oxidation of ammonia, but we already have SCR systems (DEF systems) that go a long way to reducing NOx which helps avoid the use of EGR.
@Phil2stroke3 жыл бұрын
honestly i’ve been told so many times that carburetor’s were going to disappear one day its 2021 you can still buy a motorcycle with one lol gasoline will stick around longer than people think
@Xander1Sheridan3 жыл бұрын
it will not go away until we can have mini nuclear plants running our vehicles.
@jtm99453 жыл бұрын
If it gets banned then yes it will go away soon.
@chitlitlah3 жыл бұрын
They've been illegal on cars for over three decades and it's getting hard to find new motorcycles with carburetors these days. Even some dirt bikes have fuel injection. Carburetors won't completely disappear as long as small engines such as in lawn mowers are ICEs, but they have pretty much disappeared from the streets.
@cpufreak1013 жыл бұрын
@@chitlitlah I do know small engine as a whole may be vanishing though in favor of battery electric tools. even Lawnmowers now can be had with batteries that last them several hours, and they tend to be easier for the end user (IE, no having to pull start. just turn it on and go). where I live I very much see such a transition happening.
@chitlitlah3 жыл бұрын
@@cpufreak101 Yeah. I bought a two-stroke weed wacker, but since I only used it about once a year, the fuel went bad and it stopped running well after a few uses. I probably could've fixed it, but instead I bought an electric one and haven't had that issue. It can sit for several years and then be ready to go as long as the battery is charged. Same with an electric chainsaw I had until it got stolen. My lawnmower is still an ICE though, as I use it more often, but they're getting less common as battery tech gets better. Anyway, point is carburetors are still around but not very common. Internal combustion engines will be around for a few more decades at least, especially in automobiles, but they're slowly going away as well. I hope they don't go away completely because electric vehicles aren't nearly as fun.
@een21023 жыл бұрын
Jason, great video as always. Would love you to explain 6-stroke engines. Hydrocarbon-steam hybrids and their limitations.
@TheGIGACapitalist3 жыл бұрын
With battery demand far exceeding supply, even at such low EV adoption rates, the clear solution is using an ICE as a range extender rather than having everyone haul around 500 miles worth of batteries when the vast majority of people need less than a quarter of that for daily use.
@rolliebca3 жыл бұрын
The Super Capitalist - I agree 100% at least until battery technology and production can catch up. Seems to me it should be doable to get an arrangement that could approach 100 mpg equivalent with today's technology.
@aquamaggerasim49933 жыл бұрын
ICEs like Rotary Engines haven’t been developed enough but they have great potential!
@Arcadia19973 жыл бұрын
Exactly! We can have ICEs run constantly at their peak efficiency, and maybe even use super capacitors instead of batteries to store the power.
@TheGIGACapitalist3 жыл бұрын
@@aquamaggerasim4993 I really like rotaries for PHEVs. It seems like all their weak points are countered by the strengths of PHEVs and you can also get a great sounding engine in a small form factor.
@nobodynobody39033 жыл бұрын
@@TheGIGACapitalist rotary and plugin sounds like a great idea🤔 but rotaries need to become a bit more fuel efficient first i guess
@vitaly63123 жыл бұрын
I know this is an engineering monologue/lesson, but habitat destruction is how we’ve gotten into into this climate change fiasco, along with rising emissions. Yes we can (and should) lower emissions responsibly. Responsibly meaning through innovation instead of laws like California. What we aren’t addressing is habitat restoration - for example, the tall grass prairie was once nearly 200 million acres in the Midwest. Grasslands are the worlds greatest carbon sinks, more so than forests even. We’ve destroyed them to be farmlands for corn, wheat, and soy monocrops that do not take carbon out of the air, do not do a good job at retaining water, and require inputs from petroleum based fertilizers, pesticides, fungicides, and other inputs. We should certainly work on bettering efficiency on electric and ICE engines, as well as figure out actually green fuels like nuclear. We cannot do one and not the other - that’s like scooping water out of a boat with a hole in it. You’ve gotta patch the hole.
@thefirstjackdeals3 жыл бұрын
"Pretty much useless if you can't get full load out of the engine" *cries in Atkinson cycle*
@MrBenHaynes3 жыл бұрын
I think the gains that Toyota see in their mild hybrid vehicles Atkinson cycle range compared to straight Otto cycle is remarkable. ~50% less fuel usage and better drivability. Excellent efficiency gains for very little extra outlay.
@thefirstjackdeals3 жыл бұрын
@@MrBenHaynes All true, but I think you misunderstand what I meant. Atkinson cycle engines have only 60% the maximum full load hp of a similarly sized otto cycle engine. I was just chuckling to myself when he said pretty much useless at 40% full load when the Atkinson cycle at 100% load is only producing 60% of the hp
@jamesvandamme77863 жыл бұрын
I'd like to see a discussion of EV vs. hi-efficiency range extended hybrid vs. ICE vs. hydrogen FC.
@jamesvandamme77863 жыл бұрын
@@phamnuwen9442 ... but then there's the complexity, the loss of space due to the battery, and the extra expense. I wonder how it compares over a number of years? A mild hybrid makes no sense for the driving I do, which is mostly rural.
@pauldavies74692 жыл бұрын
What about the possibility of synthetic fuels? They're definitely worth considering far more than they currently are
@jamesvandamme77862 жыл бұрын
@@pauldavies7469 Unless they're carbon neutral and get heavily subsidized, cost is higher than fossil oil. They make ethanol in Brazil where there's lots of sugar cane. If somebody came up with a cheap fuel cell that ran on liquid synth fuel that would kill ICE. Gaseous hydrogen won't cut it. The best current idea I've seen is the Mazda MX-30 which has a small (cheap) battery and a range extender. They use a rotary engine, which is smaller and cheaper than pistons. Running at constant RPM, it will have better efficiency. If it's only used for long trips, the longevity problems don't matter.
@pauldavies74692 жыл бұрын
@@jamesvandamme7786 see Porsche's E-Fuels. They are carbon neutral. Like literally everything including EVs, cost will come down over time though yes at the start they will be expensive but that's no reason not to do it and use them. Fossil fuels need to go but there are alternatives! Love your idea of putting EVs against hybrids and Hydrogen powered vehicles
@hugieflhr033 жыл бұрын
You need to do a video on electric car batteries and what happens when they are no longer useful. What hazards they pose and what can be recycled.
@EngineeringExplained3 жыл бұрын
Here ya go! kzfaq.info/get/bejne/Z9OIhrCov7vNc4k.html
@RahulPatel-fp3ju3 жыл бұрын
Honestly I don't think ICEs are going anywhere. Perhaps more time will be invested into hydrogen combustion or synthetic fuels.
@chappy21213 жыл бұрын
Itl be a combination of them i think. Other industries are far more damaging than average joes car. Unless they're trying to stop people from going to work? Have a look at Refrigerant gases for example, absolutely horrific the c02 rating on them. I'm a Refrigeration engineer and can save 20 years allowance of c02 for my driving by fixing ONE refrigerant leak
@ameserich3 жыл бұрын
Future ICE might be "Opposed Engine" fueled by Hydrogen. Do you have an idea what Opposed Engine is?
@RahulPatel-fp3ju3 жыл бұрын
@@ameserich Yes. It's really funny you mentioned that because I have been thinking about an idea for just that - an opposed-piston, hydrogen engine.
@arthurbenedetti91463 жыл бұрын
i worked with fuell cells, its not the future
@arthurbenedetti91463 жыл бұрын
@@RahulPatel-fp3ju you dont use pistons for hydrogen. Hydrogen makes the metal britle, it's really small so it escapes the rings and valve seals and its really light, so even if it has a lot of power per mass it doesn't per volume. It dosent smell and it burns transparent wich makes more probable for accidents. Fuel cells are better for hydrogen but have many problems as well
@gioa.3483 жыл бұрын
When I saw the bad on CI and it said "Rich A/F" I thought he meant Rich As F*** until he said Rich Air Fuel 🤣
@RaynaldoPascaPurnomo11 ай бұрын
Like how this channel educated about how does engine works. So we can figure it out about our engine well. Thank you 🙌🏻
@QueensGTO_Viper3 жыл бұрын
um, have you seen Mad Max? The future of ICEs is awesome
@tommylyeah3 жыл бұрын
Marvelous Guzzleine!
@jaydunbar75383 жыл бұрын
@@SentientSingularity "goes bad" sure, but will still run for at least a decade. Maybe not good, and may make the vehicle look like a mosquito fogger, but in the apocalypse I doubt either will matter. Then of course any gasoline engine can run on alcohol, and that was getting made long before the industrial revolution and will continue being made till the sun explodes and takes us all out.
@sdc3033 жыл бұрын
Oh yeah!
@christopherayala46193 жыл бұрын
Facts
@charlesschulz84163 жыл бұрын
Barter town was powered by pigshit🤣
@Pedro5antos_3 жыл бұрын
AWESOME Content!! We can't go "All In" in just one tecnology
@UnipornFrumm3 жыл бұрын
Ehm,why not? We are all in in touchscreens for example
@siraff44613 жыл бұрын
@@UnipornFrumm A perfect example of why new tech shouldn't be universally hailed as great simply for it being different. They are terrible to use in almost all cases when you actualyl want to drive the car. Great for marketing but junk once you're past that.
@Xander1Sheridan3 жыл бұрын
@@UnipornFrumm no we aren't. Plenty of people still use flip phones and blackberry style phones.
@UnipornFrumm3 жыл бұрын
@@Xander1Sheridan verry few
@AMONALAKH3 жыл бұрын
@@UnipornFrumm yes we are all in for touch screen on mobile devices. But the mouse and keyboard still lives on for certain applications.
@Danger_mouse3 жыл бұрын
What this video shows more than anything, is just how clever the team at Mazda have been with their HCCI Skyactiv engine. The guys that spent years making triangular fires go around in circles have made a usable, real world efficient engine and put it into production. 👍
@stevenfarley69093 жыл бұрын
Why wouldn’t combustion engines have a future? The future will have more power train options but to say combustion may not have a future is just wrong. I remember people in the 1990s saying that whiteboards will be a thing of the past, but here we are...
@andrasbiro30073 жыл бұрын
Because their exhaust is very harmful, and because electric motors are much better in practically every way. Ass soon as batteries get good enough and cheap enough, ICE is dead. And that's not that far away.
@christopherayala46193 жыл бұрын
Facts
@christopherayala46193 жыл бұрын
Synthetic fuels from Porsche might come in handy
@snakeeyes92463 жыл бұрын
Whiteboards don't destroy the environment. That's the difference.
@willf28963 жыл бұрын
How about charging 100+ million EVs on carbon fueled power plants.
@MrUnexistential3 жыл бұрын
You know that the people who buy EVs also support wind, solar, nuclear, and hydroelectric power?
@mutated__donkey58403 жыл бұрын
@@MrUnexistential you know they don't have any power over where there electricity come from?
@aaasdswagttyjhfjy40083 жыл бұрын
@@MrUnexistential In sweden we closed a perfectly running nuclear reactor at new years eve that had 20+ years of life left in it, with the explanation "We built more MW of wind power than the reactor made last year, its fine". So a few weeks after they closed it, we had -10 degrees celsius in the south and -25 in the north of the country, and no wind. They cranked up an old oil power plant and imported polish coal-power. This was all made possible by the same people who thinks the electric cars are the rescue, whatever source you charge them off
@willf28963 жыл бұрын
@@MrUnexistential Not from what I've seen living here in CA, most EVs and Hybrid vehicles have all kinds of stickers plastered on them, most of which who seem to want to ban just about everything. I'm not not knocking the EV trend, but there is no magic bullet.
@arthemis10393 жыл бұрын
As an EV supporter, this is one of my main argument to defend clean and reliable energy sources. Going electric allows to centralise all the emissions to the power plant, which can be replaced by low carbon emission, effectively getting rid of all emissions. That's why I support electric heating vs gas or domestic fuel heating, etc.
@lexzm3 жыл бұрын
MotiveDVD did a video series going over the different ways fuel could be mixed with different alcohols and oxidizers to see what produced the most power. Would be interesting to see your take on using alternative fuels. Great content, always learnin!
@fortitudevalance84243 жыл бұрын
Love your videos no horrendous bg music or cheap nasty effects.
@jpdj27153 жыл бұрын
CI - replace the single injection nozzle by, say, 10 and each blob of fuel coming in, is 1/10th with exponentially larger surface (surface relates to the 2nd power of blob radius and volume with the 3rd power, so surface to volume ratio improves a lot). And, if we want to slow down global heating, then we need more particulate matter in the atmosphere, like we had in the older days.
@imnotusingmyrealname45663 жыл бұрын
Synthetic fuels maybe?
@Plexipal3 жыл бұрын
Still burning and burning is what gives off emissions.
@marfrandema18843 жыл бұрын
Prex is right + INEOS told it'll be very very expensive to produce.
@imnotusingmyrealname45663 жыл бұрын
@@marfrandema1884 Ineos?
@imnotusingmyrealname45663 жыл бұрын
@@Plexipal Much less though. And how do you expect to get the resources for batteries for literally everything? Cars, trucks, planes, boats, helicopters, and the other gadgets that use batteries? The people that think there's no problem with resources for batteries also though that we would've run out of oil in 2015 of something. Elon's plan to get Lithium out of sand in the backyard of the factory is ridiculous anyway.
@marfrandema18843 жыл бұрын
Yes Mercedes F1 fuel supplier. They said it's not commercially viable, same thing happens with hydrogen.
@manuelfvdias3 жыл бұрын
I wonder why when talking about efficiency in electric cars i never saw anyone considering the cost of manufacturing the car, e.g.: it takes at least 30 times more copper to produce, it takes much more rare materials, and they cost much more to recicle the batterys (if meanwhile they can find a safe way to do it). Why is that? What do you think?
@grekiki3 жыл бұрын
Manufacturing is a constant cost which is expected to drop a lot in the future, so it is not a big deal if they currently use somewhat more resources. For example let's suppose that less than 1% of all electric cars that will be made until 2030 were made before 2020. It doesn't really matter if they use 2-3 times more resources than what the technology will allow in the future. And since batteries are progressing at the significantly higher rate than Ice vehicle efficiencies you'd expect that electric cars will use less resources than ICE vehicles. Is recycling really a challenge? Just make it mandatory for the manufacturer. They can then price the car with the cost of it.
@kamenriderblade20993 жыл бұрын
Plug-In Hybrids are the best of Both Worlds IMO. I've check various studies and having a bit of both, especially one axle powered by ICE and the other axle powered by Battery + EM (Electric Motor) can give you the best results, especially on cost factors to end consumers.
@papasmith76483 жыл бұрын
@@grekiki if you make make recycling mandatory for the manufacturer then it will make EVs even more expensive.
@user-yn5sk5ru5g3 жыл бұрын
Cradle to cradle, EV beats ICE everytime
@kamenriderblade20993 жыл бұрын
@@user-yn5sk5ru5g except in cost, convenience, & vehicle weight. That's why I still prefer Plug-In Hybrids.
@scottclute84132 жыл бұрын
This man explains all so very well. and quick..
@Tarkov.3 жыл бұрын
Darn, I was hoping this would be a look into ethanol fuels.
@jaydunbar75383 жыл бұрын
Worse for the environment then gasoline, but fantastic for boost.
@dragospahontu3 жыл бұрын
@@jaydunbar7538 it's better, look at South America
@jonasstahl98263 жыл бұрын
@@dragospahontu What is good on ethanol? Burning food while people starwing to death
@dragospahontu3 жыл бұрын
@@jonasstahl9826 there is food for everyone, calm down
@Defy_Convention3 жыл бұрын
the switchgrass revolution
@morgan56303 жыл бұрын
You could solve the multiple fuel issue by having dual nozzles that lock into your filler neck that go into dual tanks, each the correct size so that they empty at the same rate. The nozzle would only go in one way, and thus the general public would be able to fuel up easily.
@jaydunbar75383 жыл бұрын
And would require specialized pumps to be installed, fine for a long term theory but terrible in short term practicality. If that had been brought up decades ago maybe, but at this point no gas station chain is going to invest in that knowing that electric gets better every day.
@zahari_s_stoyanov3 жыл бұрын
Here in Europe, people install LPG systems on both Gas and Diesel engines. So if you install that on a diesel, you basically end up with your own RCCI engine :D
@ianchandley3 жыл бұрын
LPG and Diesel? You sure? Doesn’t LPG have a lower ignition point than diesel (but similar to gas)? LNG and diesel have similar ignition points and both fuels can be used interchangeably (or mixed) in Diesel engines.
@enja0013 жыл бұрын
@@ianchandley lpg injection has been around for diesels for quite some time. Improves engine efficiency
@enja0013 жыл бұрын
And by quite some time I mean since day 1
@jonfklein3 жыл бұрын
I'm glad you mentioned SPCCI. I'd be interested in finding out how that engine is making out on the market, and what further advances Mazda is making to the technology - perhaps some ideas for future videos.
@andrewhirsch16503 жыл бұрын
Dear Explained: carbon fiber blocks will save weight; electronic valves will assist trimming; octane increase helps efficiency. The old gal has many tricks left. Love your vids. I'm an old Quadrajet engineer for GM.
@luiz_mootta3 жыл бұрын
The future is: Ethanol. It's plant based and it is more efficient than gasoline and it's arguably cleaner than electric cars. Because all the CO2 produced in the combustion of ethanol can be compensated by all the oxygen generated by the plants used in making Ethanol. Meanwhile electric cars are often used in countrys where the energy comes specially from fossil fuels and needles to say that the making of the batteries generates A LOT of pollution.
@mrawesomelemons3 жыл бұрын
Yes but ethanol is mostly made of corn. And that requires massive amounts of land. So what'll happen is people will either: A. Chop up more of the already dying forests or B. Make fuel instead of food. This fuel brings massive ethical questions with it. And while it is more CO2 neutral it is not entirely CO2 neutral in creation and still carries other emissions with it.
@luiz_mootta3 жыл бұрын
@@mrawesomelemons In fact all the possibilities brings problems with it. As you said there's this problem with ethanol but all the other possibilities there's problems too: gasoline, electric, diesel etc. But it bothers me people trying to sell electric cars as the ultimate solution for all ecological problems and wanting to ban internal combustion engines. In fact the solution would be a little bit of everything because as long there's humans on earth there's gonna be problems too. In Brazil we use sugar cane to make ethanol and this fuel is commonly more used than gasoline but there's still enough sugar cane to go to people's tables and remains some unused canes still, but I don't know how it would be in a worldwide scale.
@mathiasmang8483 жыл бұрын
@@luiz_mootta you are so right. There is no solution for everything. You need a mixture of many different technologies... But politics are selling battery electric as the solution for everything
@TheFlick1753 жыл бұрын
@@mrawesomelemons gotta have that high fructose corn syrup
@christopherayala46193 жыл бұрын
@@luiz_mootta exactly true
@chuckschillingvideos3 жыл бұрын
I'd put money on combustion engines' future way before I'd put it on EVs' future. Everybody is claiming EVs are going to take over but I don't see it. There are too many structural impediments to EV becoming ubiquitous that will never be addressed.
@LightningxRaiden3 жыл бұрын
Thank you, I’m glad I’m not the only one who had this understanding
@UnipornFrumm3 жыл бұрын
Evs will never become a thing like smartphones never became a thing,i mean who needs a verry powerfull computer in your poket when you can have a pc and wire phone,never run out of battery !
@chuckschillingvideos3 жыл бұрын
@@UnipornFrumm You are completely missing the point (intentionally, is my guess). There are millions of drivers who do not live in locations where they can install charging stations nor are they within walking distance of one. Moreover, EVs are terrible choices in extreme heat and cold. Last but not least, their terrible range and lack of instant charging capability means they are highly compromised when it comes to making long trips. EVs are not the magical vehicles you make them out to be.
@adamhulu61713 жыл бұрын
100+year tortoise and hare race. ICE liquid fuels still have physics on their side. Electric cars have politics on their side. You can only cheat nature so long, time will tell if electric tech can catch liquid fuel fast enough.
@LightningxRaiden3 жыл бұрын
@@adamhulu6171 exactly, politics won’t save the world.....
@DanielvanKATWIJK3 жыл бұрын
Hello, So as I understand it, RCCI is what is already used in diesel engines which run on dual fuel gas (LPG) and some diesel to ignite. You find this in Italy and England where they convert diesel to diesel with LPG. Even in Australia, I saw this kind of technique. This for 20 years now. It is easy to install on existing vehicles. I tried an Alfa 159 Station 2.4 liter Diesel equipped that had 20% more power and 35% more torke. Up to 45% less fuel depending on the load.
@marktrued94973 жыл бұрын
At 15:15, sums it up neatly. You can jump through all the technical hoops, the mechanical complexity and the associated service costs and failure rates, all to achieve half the efficiency of an EV.
@zaidkidwai78313 жыл бұрын
1:55 so what you're saying is to always floor it haha
@EngineeringExplained3 жыл бұрын
Exactly - need that high BSFC!
@kevink23153 жыл бұрын
@@EngineeringExplained I recall Mercedes did some early tests on the most efficient way to drive, and found that short shifting at WOT was the most efficient.
@Maroco9183 жыл бұрын
@@kevink2315 if you find something on that can you link it? That subject seems so interesting
@Appletank83 жыл бұрын
@@Maroco918 A lot of hyper milers use this trick a lot. The three big things you have to manage is 1: WOT is the least restricted 2: Low RPM has the least friction 3: Speed = Drag = Energy loss This is results in the technique called Pulse and Glide/Burn and Coast. You accelerate at around 80% throttle, and keep the RPMs as low as you can via shifting early. Once you reach your target speed, coast on no power and drop speed by about 5 mph. Accelerate and repeat. Works best with hybrids since they automatically shut off the engine when there's no throttle. There's a bit of questionable driving technique involved if you want to avoid engine braking.
@Leo999293 жыл бұрын
Yes, accelerating with your foot to the floor (or more specifically at peak efficiency which is usually around peak torque) is the most efficient operating range... However, If you travel at a constant speed once you hit the speed limit, then you will use MORE fuel over the journey because you spend longer at a faster speed, and that higher speed has higher aero drag and rolling resistance. Though for cruising speed this is not always the case, as at low speeds you can under load your engine meaning you aren't utilizing it's power output efficiently, so driving at a constant 55-65mph is usually most efficient, unless you do as others have suggested and use pulse and glide to make use of that peak efficiency in short bursts. This can increase clutch, gearbox, and starter motor wear, depending on how you achieve it. You can also lose power steering and brakes.
@xexas30003 жыл бұрын
weekend drives. You don't need thousands of low powered combustion comute cars, those comutes can easily be done with electric cars, which are less expensive to run while you keep your cool 'old' combustion cars for those drives on the weekend.
@CharlieBennici3 жыл бұрын
Unfortunately, not everyone feels that way :( We are in the minority here
@marcoimanuel54893 жыл бұрын
Those "old" ICE cars still produce emissions which still warms the planet, however with an "ICE" additional tax in place, ICE cars do still have a future
@chappy21213 жыл бұрын
@@marcoimanuel5489 so does growing rice, emissions from data centres, transport, aviation and over population. Refrigeration is also a massive contributer to c02 emissions, I can save my c02 allowance for 20 years motoring in one refrigerant leak
@xxxxxtrxxx133 жыл бұрын
This is clearly the most reasonable view for everyone. If commuter cars become EVs and sports cars remain ICE, nobody will be unhappy and there will be no enviromental damage, considering sports cars are probably 5% of cars, if not even less
@Mick.3573 жыл бұрын
A video discussing LiquidPiston’s new spin on the rotary engine would be a great video topic. High power:weight ratio perfect for an onboard generator for a series hybrid or other small motor applications.
@Daniel-OConnell3 жыл бұрын
There are diesel trucks running on dual fuel with propane (LPG) injected into the manifold and standard common rail direct injection, ratio of propane to diesel fuel is about 4:1 by mass. Evaluation tests indicate increased horsepower output and a substantial reductions in emissions. There is more particulate in modern diesels coming from brakes, tyre wear and road wear than what comes out the exhaust, since the introduction of DPF . SCR Catalytic reduction using Adblue has also brought enormous benefits in reducing NOx emissions and modern diesels are a million miles cleaner than their predecessors. Much depends on the driving cycle of the vehicle and getting up to operating temperature quickly. Very small modern diesels are notoriously difficult to heat in cold climates/weather as the efficiency of modern engines continues to improve dramatically. Love your videos they are always entertaining and informative. I would love to see a video on emissions (HC, CO & NOx) from indirect diesel injection v's direct.
@JakkiPi3 жыл бұрын
Everyone forgets about airplanes.
@samwyzegg79353 жыл бұрын
And the fact that small planes still use leaded fuel hahaha.
@TheRealDrJoey3 жыл бұрын
That was a great moment in King Kong: "There's one thing we haven't thought of--the aeroplane!"
@UnipornFrumm3 жыл бұрын
Airplanes have jet engines not piston engines like cars
@RudyOMP3 жыл бұрын
@@UnipornFrumm Not all planes have jet engines
@samwyzegg79353 жыл бұрын
@@UnipornFrumm Uh not all planes. Propeller planes have some form of reciprocating engine. There are many configurations like radial, rotary, V, H, and Wenkel. They all of pistons just like car engines. They need leaded fuel so that knocking doesn't occur at the higher elevations with lower atmospheric pressure.
@branchprediction99233 жыл бұрын
I hope ICE doesnt die any time soon. Although i dont think i should be worried. I want enjoy driving my car.
@AleksandarStefanovic3 жыл бұрын
Don't worry, combustion cars will still be there for the enthusiasts who like vibrations, noise, and manually changing gears (and there's nothing wrong with that). Like once horses were the main means of transportation, overtaken by internal combustion engines, but enthusiasts still ride horses today.
@eoghanobrien69803 жыл бұрын
Would be curious to see your view on synthetic fuels, they could be the emissions friendly answer for those of us who love the driving experience of a petrol (gasoline) engine. None of the infrastructure or range drawbacks of electric either.
@christopherayala46193 жыл бұрын
True
@seanmorrison37442 жыл бұрын
Authothermal reformation / thermochemical recuperation seems like a good candidate for reactivity controlled CI, since it sidesteps the two fuel issue. For something like methanol, using waste heat for hydrogen reformation increases the LHV of the fuel going into the engine by around 20%, so even if you did nothing else, that's an effective 5% increase in efficiency. You also have two fuels by default -- the reformed hydrogen, and methanol, so you can adjust the mixture of these to control combustion properties in the chamber. Of course, you can also do this with other fuels as well, but they typically require higher grade waste heat. This kind of technology is probably why Toyota is looking into hydrogen ICEs -- not because we particularly want to fill our cars up with compressed hydrogen, but because it opens the door to other technologies that can boost the efficiency of ICEs, and that can be made carbon neutral or negative. As for whether or not ICEVs have a future, I think it's pretty clear that they do. The issue with BEVs has always been charge time, not range. If they only had 200 miles of range but could be charged to full in 30 seconds, I think that would actually be a more compelling product than a car that has double the range, but takes hours to charge (i.e. what we currently have). The onus is really on BEVs to prove that they can displace regular cars, because, despite their efficiency, the long charge time means that they're a notable downgrade for certain use cases.
@PwnstarUK3 жыл бұрын
have you seen the opposed-piston 2 stroke engines formula 1 are considering ?
@Assimilator13 жыл бұрын
Like a small scale Deltic engine!? ;)
@aviator-kn8zq3 жыл бұрын
Porsche invested into synthetic fuels for early testing. ICE ain't going anywhere with regular manufacturers and their all purpose SUV's.
@chappy21213 жыл бұрын
It's crazy that we have all this knowledge about aerodynamics and ICE efficiency and manufacturers are pumping out heavier and heavier less aerodynamic and less efficient SUVS. Cars should be lighter and have far better aero but they're going the other way
@rbn_hmrs5413 жыл бұрын
@@chappy2121 because the Soccer Moms want it, in Germany we cal it the Hausfrauenpanzer (Housewife's Tank) because "tHeY aRe So TaLl, I cAn SeE bEtTeR, aNd iTs So SaFe bEcAuSe iTs hEaVy AF aNd ObLiTeRaTeS fOoKiN EvErYtHiNg It CrAsHeS wHiTh"
@christopherayala46193 жыл бұрын
@@rbn_hmrs541 right rofl
@chappy21213 жыл бұрын
@@rbn_hmrs541 brilliant I'll remember that one 🤣🤣🤣
@does_not_matter_913 жыл бұрын
I love the way you explain things to people. This is incredibly useful and beneficial channel. If I may suggest a topic, EVAP systems. What they do, and what are the consequences of removing one from the car.
@SkunZielonyJakMech3 жыл бұрын
Jason, from what I know pumping losses don't come from "sucking against restriction" but from the fact that piston pumps (hence 'pumping losses') from low pressure area - intake (p = 0.5 bar at part throttle) to high pressure area - exhaust (p > 1 bar). This also explains why turbocharged engines have "negative" pumping losses - because intake pressure > exhaust pressure, hence intake air pushes down the piston with more force than the piston have to push exhaust gas out.
@matthewspry42173 жыл бұрын
Kept an old honda VTEC start it only when I miss the nostalgic benzene smell 😂😂😂
@kapekape75803 жыл бұрын
where did opposed piston engines with 55% efficiency go huh?
@Somethingisntright643 жыл бұрын
General Aviation aircraft still using them.
@bubaganoush55 Жыл бұрын
Awesome summary - thanks ! 👍
@RobWhittlestone3 жыл бұрын
Hi Jason - just to explain _why_ NOx is formed: the combustion mixture is fuel and air. Air is 78% nitrogen, only 21% oxygen and 1% other gases. The oxygen burns with the fuel but also combines with the abundant nitrogen to form NOx. The rate of NOx formation generally increases significantly above 2,800°F flame temperature. Lower temperatures lead to less NOx. ATB, Rob in Switzerland
@DriversSide3 жыл бұрын
Interesting. It's crazy to think we are living in a time that may be the end of the combustion engine as we know it.
@christopherayala46193 жыл бұрын
Ik right smh
@christopherayala46193 жыл бұрын
But Porsche's synthetic fuels might come in handy
@DryClutch833 жыл бұрын
Actually you forgot to mention pre-chamber technology for SI engine and DFI for CI engine. Even synthetic and alternative fuels represet a potential future for ICEs.
@christopherayala46193 жыл бұрын
Facts
@jungjunpark98903 жыл бұрын
I can’t believe that this guy is 72 years old
@sking21733 жыл бұрын
He isn’t ...
@jungjunpark98903 жыл бұрын
@@sking2173 it's a running joke that's not running out anytime soon.
@williammcwhorter64053 жыл бұрын
Since Amazon appears to have put in a very large order for CNG/LNG-powered heavy trucks, I'm curious how that technology stacks up against diesel. And of course, you already did that excellent video on the pitfalls of towing with battery electric, so thank you for that!
@FuncleChuck3 жыл бұрын
Combustion has a lot of value, but more for running generators than drivetrains
@ben0793293 жыл бұрын
Energy density of fossile fuel is absolutely unmatched
@HARRYAZZHOLE3 жыл бұрын
Would be the smartest direction. Like almost all trains.
@solarissv7773 жыл бұрын
@@ben079329 nuclear fuel would like to object.
@tylerzesiger76483 жыл бұрын
Exactly! Ice should be used as power generators. They can be greatly reduced in size and tuned for maximum efficiency because of a very narrow and consistent rev range.
@Welcometofacsistube3 жыл бұрын
Bs
@BornaBB3 жыл бұрын
I wouldn't mind fueling up twice for such an efficient engine
@imnotusingmyrealname45663 жыл бұрын
Especially if they are literally next to each other at the pump.
@domesticwingman3893 жыл бұрын
I wouldn't mind too, but remember there are Americans and Karens in the world, so that's unfortunately a no.
@BornaBB3 жыл бұрын
@@imnotusingmyrealname4566 Where i come from they are so that wouldn't be a problem
@cheesemons3 жыл бұрын
If the same pump island have both fuels then it would be better. Big rigs in the US are already doing it with urea (aka purified piss) and diesel. Shoutout to JJ The Trucker for his information
@imnotusingmyrealname45663 жыл бұрын
@@cheesemons In Europe and Australia it's also the case for normal car gas stations.
@SapioiT3 жыл бұрын
You know what we could really use? Trolley-trucks, and eventually also trolley-cars for the consumers. Maybe even make the usage of the power lines free for a few years, when you start implementing them.
@wilhelmdahlqvist33873 жыл бұрын
What is your opinion on E85? Most petrol cars can be powered by it with only a retune of the engine, they can run at higher compression and produces less emissions.
@robertmontgomery71583 жыл бұрын
Do a video on recycling of lithium batteries.
@EngineeringExplained3 жыл бұрын
Done! kzfaq.info/get/bejne/Z9OIhrCov7vNc4k.html
@bahamatodd3 жыл бұрын
And that video is now over two years old. Battery volumes are going up improving the scale for recycling, and the newest batteries are being designed to simplify recycling.
@sim66993 жыл бұрын
Perhaps like plastic, it can be recycled but it's cheaper not to
@skofijak3 жыл бұрын
"People aren't gonna want to put two different fuels in their car" - all people in Europe that use LPG goes "what??"
@tubester45673 жыл бұрын
Yeh but most people with LPG run on LPG most of the time and rarely fill the petrol tank. The method in the video requires 2 fuel fill up every time.
@tomnwoo3 жыл бұрын
It's ok, no one uses LPG
@skofijak3 жыл бұрын
@@tubester4567 some installations use fuel and LPG at the same time, but is like 20% gasoline 80% LPG, or even less fuel. Its when you use direct injection. Maybe in this method you use most gasoline and a bit of oil or something...
@daveizdebski3 жыл бұрын
I have an idea to fix the RCCI engines two fuel issue for the consumer. At the station the nozzle can have 2 pumps connected together. Regular Gas comes out of the left nozzle and Diesel out of the right nozzle. The whole nozzle itself could connect to a gashole that has 2 holes, to take in both the diesel and gas into the 2 separate fuel tanks. The connection process would kind of be like a wall plug but a fuel nozzle.
@canman40583 жыл бұрын
In Australia there have been some RCCI engines used in motor homes and towing vehicles that I have worked on. They consisted of a standard diesel with an added LPG (Liquefied Petroleum Gas is a Propane / Butane mix). The engines ran smoother, used less diesel and/or had more power. As mentioned, the drawback was complexity, additional up front cost, and the extra cost of running 2 fuels. Overall it did not save the owners much money.
@stubones3 жыл бұрын
EV is a total p;ain. They don't have the range and they take ages (compared to pumping petrol or diesel). Anyone who thinks there will be hundreds of millions of EVs on the road in by 2040 is smoking crack.
@aquamaggerasim49933 жыл бұрын
Hybrid Cars are the future . Rotary Engines and Solid state battery!
@markusstrobl10673 жыл бұрын
I've driven an electric car for 7 years. It has been a much better experience than any of the 8 gas cars I've owned. I'd be surprised if any cars intended for general transportation are *not* electric by 2040. There will probably still be some combustion engines for specialized applications, but only a small number.
@vitaly63123 жыл бұрын
Why not have hybrids and plug-in hybrids? I agree with you that it’s easier to live with an ICE engine in certain circumstances. But for folks that commute 50 miles per day and don’t do much else on a typical weekday can certainly do just fine and NEVER have to go to a public charging stations. Then you’re looking at coming home and putting your plug in hybrid or Tesla or whatever to charge overnight. That’s not a pain. Additionally, not having to get oil changes and such would be quite nice. I’m looking forward to a bunch of plug-in hybrids coming in the future. Would be hard to justify a 350 mile range Tesla for certain activities that I do now and again (road trips, camping, hunting, etc).
@aquamaggerasim49933 жыл бұрын
@@markusstrobl1067 FFS why to move around that heavy battery if I can carry just a tank of hydrogen for example. Batteries contain way too much Cobalt as well.
@markusstrobl10673 жыл бұрын
@@aquamaggerasim4993 Hydrogen is a non-starter. Has to be refrigerated, will always leak out of any tank, and costs as much as gasoline to make. BEV is the future.
@SmartMass3 жыл бұрын
Yes, electric motors are efficient, it's a shame we haven't identified an efficient solution to store it's potential energy in a car. That's why I still think a PHEV with range to do your commute emissions free and another solution to travel longer distances is the solution.
@anthonypelchat3 жыл бұрын
We have an extremely efficient solution for energy storage already. They are called batteries. Those are like 98% efficient. The problem with EVs is that we don't have are enough smart people in the world to understand how to use them properly. 90% or more of all driving is done in short drives, which are perfect for EVs. But long drives require a change in habits. Charging only takes 30 mins to an hour and can be done while you are doing something else. Not difficult at all, especially with larger batteries. But telling people that they need to take random breaks when driving isn't something that many can understand.
@Limbaugh_3 жыл бұрын
I’d love to see combustion engines around as long; they’re just more fun to work on and drive
@brianwild70883 жыл бұрын
Was told by a Diesel engineer that a) the particulates are somewhere around 20 microns which makes them heavier than air so they fall to the ground. b) NoX gas is a very unstable gas which has a life of about a half of a day compared to carbon dioxide which has a life of 300 years. So I still think diesel is the way to go.
@lanelyons93033 жыл бұрын
yes that is very much true. atleast the unburnt fuel part is.
@coldarcluck53203 жыл бұрын
Awhile back you did a video on Opposed piston engines. Achates power had been working on it. Is that dead? I found that very interesting, but haven’t heard anything from them in a couple years?
@jonasstahl98263 жыл бұрын
They are too complex to build. Adding a few more cylinder is much simpler than adding a second crankshaft ore some leveragesystem
@coldarcluck53203 жыл бұрын
@@jonasstahl9826 it seems that it’s less complex. A lot less parts?
@jonasstahl98263 жыл бұрын
@@coldarcluck5320 Damn you are right I forgot the valves🤦♂️
@kouji713 жыл бұрын
I feel like controlling HCCI to avoid knock could be a very good use case for machine learning.
@SOHCGT963 жыл бұрын
The problem is you only have indirect control over it. Since nothing is triggering the combustion event except fixed mechanical events it takes really precise cylinder temperature control. But what COULD end up actually making it practical is freevalve style systems where you have full valve event control. If you have a very high static compression ratio, valve events can be used to bleed off a little bit of cylinder pressure and ultimately give you variable compression. This MIGHT give just enough control to make HCCI viable in the varying load/RPM/temperature of an automotive application. The problem is though, if you're bleeding air off to adjust compression, you're bleeding out a mixed fuel/air charge and it would lead to a lot of potential unburnt hydrocarbon emissions. Catalysts take care of this but still, unburnt fuel out will then drop your efficiency.
@lorriecarrel99623 жыл бұрын
I have learned so so much from your content,thank you Jason
@dondominic74043 жыл бұрын
Thanks for providing such a deep insight into internal combustion engine technologies.
@chapter4travels3 жыл бұрын
Combustion engines have a very long future. If you could magically have all new cars globally be electric, it would take 25years before combustion engines were eliminated. Of course, that's impossible, more like 100 years.
@jasonmillner64163 жыл бұрын
They wont get completely eliminated. We still have steam engines and horses, just wont be the norm. In 20 years from now EV's will be the norm new gas vehicles almost obsolete and the ones that are left on the road will be junk in just a few years there after. I feel that this is a conservative estimate most likely things will happen even faster.
@chapter4travels3 жыл бұрын
@@jasonmillner6416 You think that's going to happen globally?
@jasonmillner64163 жыл бұрын
@@chapter4travels of course. China has the boldest environmental regulation plan on the planet when it comes to automotives. 3rd world countries will lag behind the first world obviously. the hope tho is that the 3rd world countries can skip a step and go straight to the new energy infrastructure.
@gustavlicht96203 жыл бұрын
Heck, we still use steam turbines in power generation and in naval propulsion.
@chapter4travels3 жыл бұрын
@@jasonmillner6416 You actually believe the propaganda China puts out? Hahahahahaha
@Fee.13 жыл бұрын
Not convinced they need to change much at all frankly, especially as long as electric energy density is abysmal
@kamilb82323 жыл бұрын
So we shouldn't strive to improve? Energy density for batteries is constantly improving. ICE should do the same.
@DC-rn1fc3 жыл бұрын
@@kamilb8232 Absolutely! There still is a lot of potential left - but most ICE-appreciating people are somehow focussed on "old is good" and similar shenenigannery.
@daftnord49573 жыл бұрын
you should wright a scientific paper on it
@tkermi3 жыл бұрын
Well, in a way yes - if you assume that ICE tech is dying off soon. But I think that ICE is still going to be around in a meaningful way at least a decade or two. So it's important to develop it.
@lucasvanhamburg49373 жыл бұрын
energy density in batteries is barely improving. and the longievity certainly is not improving either
@martinmusli30443 жыл бұрын
The first time I every thought about how the engine of my car works :D Thanks that soooo informative, comparingthe different types of ignition engines! Kepp it up
@mauricetremblay13243 жыл бұрын
Always lean something new on this channel. Thanks and keep up the great work!
@jammi__3 жыл бұрын
Applications, where high power density is actually needed, such as recreation boats, which run typically between maximum efficiency and maximum power of the motor. You can't have a battery powered fast boat that also has any kind of practical range. Cars on the other hand typically operate most of their time well below maximum efficiency and maximum power, because they need power only for good acceleration.
@gqh0073 жыл бұрын
Some luxury brand is probably working on it already
@ThomasAlex3 жыл бұрын
But you’re making a bold assumption that battery technology isn’t going to improve from what we have today, which is clearly false. It’s a very gradual progress, but hey if battery had 100+ years to mature and develop like the combustion engine, then your point is moot?
@R4M_Tommy3 жыл бұрын
@@ThomasAlex battery tech has improved for over 100 years already. Batteries are 1800s tech, like ICEs.
@creatineenjoyer73453 жыл бұрын
Greatly explained. Airplanes and Ships also need power density in order to be viable
@jammi__3 жыл бұрын
@@ThomasAlex At the historical pace of battery development, it'll take about 300 years for usable battery density in these applications. So no, in that long a time frame we can't say for sure about anything and it doesn't matter to us anyway, since we and everyone we know will be long dead and forgotten.
@SuperLEGOMADNESS3 жыл бұрын
I feel like there could still potentially be a future for combustion engines in cars if we were to use hydrogen to make them much cleaner. I understand there are problems with using hydrogen in a combustion engine (mainly range) but given that it would be significantly cheaper, up front, to buy a car with a hydrogen engine vs an electric battery car or a fuel cell car I think it's something that should be considered more. I also think it would be better for the environment than a battery car because of the damage that's done when mining for ingrediants to go into lithium ion batteries. If you're going for the least environmental impact though then you would go for fuel cell cars but, again, they're VERY expensive.
@yayayayya47313 жыл бұрын
100% agree with you.
@aidanwilliams94523 жыл бұрын
The problem with hydrogen is the infrastructure to support it is much more expensive to build than the already existing grid for electric cars, not enough companies willing to put in the huge funding for that. I think the few hydrogen cars out there e.g mirai, use the hydrogen to create electricity for the motors, which is likely more efficient and less dangerous than combustion of the hydrogen. So if hydrogen does get more popular it likely won't be in the form of a combustion engine
@aidanwilliams94522 жыл бұрын
@Game tuner A way for what exactly? It's not gonna be as efficient, that's simply the nature of combustion you're naturally gonna lose energy in several forms. Right now majority of consumers just want transport, combustion or not doesn't matter to them
@aidanwilliams94522 жыл бұрын
@Game tuner Who exactly? The switching being done is substantially more to EV's or simply other standard combustion cars. The toyota mirai and hyundai nexo are really the only two on the market, and both of those are FCEV's and not in large numbers. There's not even a thousand hydrogen stations globally right now
@aidanwilliams94522 жыл бұрын
@Game tuner Who cares about Musk or a 50% target, what makes you think hydrogen combustion is a more viable alternative to FCEV's let alone standard EV's?
@Simon-nx1sc3 жыл бұрын
Quality content, as always! I'd like to hear efficiency numbers comparison tho!
@edwalker83753 жыл бұрын
Great video.This guy is common sense. What he says reflects what is reality - a sensible future belongs to everything, gas,diesel, electrics, hybrids, alternative fuel engines etc..(like many people,researchers and companies have said...)
@kresnabudiman6983 жыл бұрын
I've heard a long time ago about an engine that can have around 60% thermal efficiency in 2004, using pressure waves as a method of compression or some sort... I think it's called the wave disk engine (WDE), can you make a video/discussion about this kind of engines and it's potential use in the automotive industry (if there's any)? Thanks
@amalvenu73753 жыл бұрын
Mercedes Formula one power units have 50% thermal efficiency
@johnburns40173 жыл бұрын
The pumping losses of a piston engine, somthing you cannot get around, forbid any meaningful efficiencies.
@rolliebca3 жыл бұрын
Kresna Budiman - Thanks for mentioning this, I haven't even heard of the WDE design. Sounds like it's got worse sealing problems than a wankle though, but potential.
@johnburns40173 жыл бұрын
The wave disc died. Great in theory at the time, with a model built, but zero emissions have taken over.
@kresnabudiman6983 жыл бұрын
@@rolliebca ahh yes thanks for mentioning the sealing problem... Haven't thought of that for years, might be one of the reasons it has no further development
@Bhatakti_Hawas3 жыл бұрын
So Diesel engine is the best. They have AdBlue which reduces NOₓ
@lucasvanhamburg49373 жыл бұрын
well it depends, engines put out les co2 without exhaust systems
@R3Cat3 жыл бұрын
Great in theory, not great when you have to spend €2000 repairing a system worth more than the car itself, all while the car runs and drives perfectly
@aquamaggerasim49933 жыл бұрын
Rotary Engine is the best and still has a lot of potential ! If you use it working on Nitrogen or Hydrogen for example.
@UnipornFrumm3 жыл бұрын
Are you payd by VW or something? 😂
@Bhatakti_Hawas3 жыл бұрын
@@UnipornFrumm I wish
@kristianhermann59713 жыл бұрын
45% thermal efficiency for the dual-fuel isn't earth shattering, but I guess that's just one study. Hyundai and Toyota have both achieved ~40% with Atkinson cycle gasoline SI engines (modern Otto SI engines are 30-35%). Still neat the see the results.
@Akck673 жыл бұрын
I'd imagine if RCCI engines become more common, they'd have a fuel option at gas stations where you could fill both fuels from one nozzle (I don't actually know what those things are called). Like when you get soft serve and you get the vanilla and chocolate swirl.
@nathanwabre3 жыл бұрын
So let’s run the big old SI engines with synthetic fuels
@christopherayala46193 жыл бұрын
Right
@nathanwabre3 жыл бұрын
@@christopherayala4619 it’s a little to easy to say that if course... But I’m sick of the approach of over engineering for a problematic fuel instead of choosing a better fuel. I bet Bio renewable CNG and synthetic fuels are great solutions!
@christopherayala46193 жыл бұрын
@@nathanwabre facts
@keithoverholt19633 жыл бұрын
Any research being done on combining these more efficient technologies with carbon neutral fuels?
@buchanap3 жыл бұрын
As a person that worked in the Biofuel industry for years I can say that it's never going to scale to mainstream. Its a great concept but producing that level of bio-mass in a sustainable way in not remotely feasible. Sadly the way to make it pencil out economically is to cut down rain forests to grow palm oil. The algae based alternatives have been dying in test tubes for 20 years, you can make a few gallons but not 10,000 per batch. Don't even get me started on switch grass based or corn based Ethanol.... just feed the corn to the cows and eat them. Big Oil produces many many thousands of times the amount of fuel that Bio does and to switch from one to the other wholesale would wreck the food supply and create swaths of global mono-cultures that come with even bigger headaches than climate change. Just imagine a single plant blight knocking out half of the worlds engines. Yup i really wished it was a better idea too....
@Solaris_3473 жыл бұрын
Thats exactly what I was thinking, Biodiesel Has Advantages of Much lower CO HC and Particulate Emissions as well as No Sulphur Emissions At all Only trade off is 5-15% higher Nox Emissions Another issue is that Biodiesel (depending on the feedstock used) can have A lower Viscosity than Normal Diesel Most diesels today run at 30,000 PSI injection pressure, but with Biodiesel that can drop a couple thousand Another issue is that the Diesel engine has grown up with Dino Diesel, so its a little hard to find a compatible Biodiesel engine made by Manufacturers that don't want to spend the money making a B100 Compatible engine One way to combat the Nox issue to to include Water injection, It dramatically reduces Intake and Exhaust temperatures, Promotes efficiency, and Reduces Nox by 5-9% Another benefit is that it doesn't use any Limited resources, Biodiesle is made from vegetable oil, an alcohol (ethanol is perfect for this case since you can make it with just yeast and sugar, and An acid like Sodium or Potassium Hydroxide
@christopherayala46193 жыл бұрын
Right
@christopherayala46193 жыл бұрын
Porsche's e fuels might come in handy
@AdrianoCasemiro3 жыл бұрын
There's no "one size fits all" kind of solution. Here in Brazil, most (up to 90%, depending on price and availability) of our ice cars run on ethanol (made of sugar cane). Fuel production actually captures a lot of carbon via photosynthesis. The ethanol burn is also very efficient and dumps less carbon during combustion. And that's achieved with very common and cheap technologies (flex fuel software on the ECU, some materials coating in the engine to prevent corrosion and the car is converted to run whatever fuel or mix between gasoline and ethanol). That only works in a hot climate country where you can grow sugar cane, of course. So what serves Brazil wouldn't work in colder countries.
@gothicpagan.6663 жыл бұрын
One problem with optimizing the efficiency of any IC engine, is at what state are you trying to optimize? If an engine can be loaded at its optimum operating state, the rewards from a fuel usage perspective are quite small, unless the engine is designed to operate at that specific rpm point. The options are then, run a dynamo or hydro static pump at than specific RPM. For a road vehicle the best option right now is mechanical electro drive.