If anyone is wondering, this is how they make heating and cooling seats in cars. You don't even need to turn the peltiers over. You just switch the polarity. He may have made an AC for the summer. But he also just made a heater for the winter.

You went to all that trouble to produce this, and the whole point was to show the cooling effect, but never put a thermometer in front to show how it cooled. Why?

As an Engineer to a colleague - I just love how you placed your power source cables right on top of a 70 c heat exhaust. Now, that is just a beginning of an ocean of problems for this - wrong - toxic (nitrates producing) potentially explosive assembly.

It would be nice if you showed us the ambient temperature as well as the output temperature. We would also like to know the total energy consumption. Hard to know why you overlooked those critical items.

Unless your going to be hanging the back outside a window your making more heat on one side then producing cold. Plus the electric for these are high.

i was waiting for temp. test at the end

I love how the heat from the peltier just warms up the room more then it can get cooled down

Without the hot side being exhausted to outside you will actually heat the room. What happens to all the condensate from the cold side? You need a drain pan. Back to the drawing board.

i made a similar project few months before....in my design i just used two peltiers (consumes only 5A each)...in order to increase efficiency you need to pulse the input current...by using an IGBT or a MOSFET. the peltiers can handle 2x more power when its input supply is pulsed at high frequncy, and also removing much heat from the hot side can improve its performance...say pressured gas loop.... PS: i made a refrigerator..not an Air Con..cause there would be a lot of work for an isolated air con.

Nice build, there are a number of reasons why this won’t be effective though. Peltiers are 2% efficient, that’s the first. Not having said that it was for a particular size area or any specific application it would have been good to see the temp of the cold air expelled. I’d like to see this principle, or indeed this particular model adapted to a cooler box. The heat pump effect would not be an issue. Having said that it would be too “power hungry” for a mobile application. So I guess “Home made Beer Fridge” might be the go. The other interesting point with peltiers is that they can keep a small area or amount of medium very cold but apparently cannot get the initial temperature drop to their efficient operating temperature with larger areas. Cooling a circulating fluid was mentioned in a few of the comments , now that MAY have potential. Just Saying

Peltier is making more heat than coolness, so if it's supposed to work the hot air must be discharged to the outside.

An amazing concept, however, unfortunately the most inefficient air conditioner in the world lol

Nice Room heater. Great for cold Days in Winter.

1- the fans on the front are not close enough to the cold sink, causing a not very optimal air flow. 2- The cold sink side is probably going to build up condensation. 3- Hot air in the back will just go around to the cold side, and leave the room hotter than it was before. Peltier elements (same system like this), generate heat, they do not cool. 4- Might work ok as a dehumidifier, or a space cooler, but that's it.

One of the better ones that I've seen made in youtube. It's always good to have the correct tools. Makes projects a lot easier and cleaner!

This is a neat idea although it would never be super efficient or a high output cooling device but it's definitely a fun project, some ideas that would improve the design would be: first you need to vent the hot side out of the room for two reason one is you don't want that heat circulating back into the room but mostly because as that heat circulates it continues to heat those peltier chips and that lowers the cooling efficiency, remember as the hot side heats you lose cooling so circulation away from this side is key. Now another design flaw I seen is on the cooling side, you should of directed the flow of air pass the the heat sink along the aluminum fins. Put the intake on one side and the exhaust on the other and drop the top lower so it is close to the fins and forcing the air to run through the fins and not around it then the air will cool before it exits the exhaust vent. These are just a couple thought for what it's worth. This is a neat project and looks like fun thank you for sharing.

why bother to make this if you dont show us the output of the box. Temps power used etc.

I think you should have placed a thermometer nearby to measure the temperature generated by the box.

I recommend putting the AC at a window to create temperature differences. Overall, nice work!

To reduce the wattage, put seabeck devices on hotter side and submerge another side of seabeck devices to generate little electricity and heat the water to be used for other kitchen purposes.

Smart idea, neat and well organized work but... at least you could have put a thermometer in front of it to show us how efficient is your set.

Cooling and heating up the room at the same time :D lol

Nice job man.......!Great .I like it but you can add a drain pipe for water of ice when it melts .Thanks a lot .keep going.

The peltirr device will eventually stop producing a cold side just one side that is significantly cooler than the other but the if the hot side jumps up to a crazy temp you will have a warm box

peltier = 400w, (100 btus + -) 24h/D = 9.6kw air conditioner 7500 btus 900w 10h/D = 9 kw

Id love to see the video end with a thermometer in front of the unit to show its actual temp of the output air. And one in the back to see if the cold output is higher or lower than the heat generated to provide the cold.

You are A Perfect Teacher 👌👌

Looked like way to much thermal compound. Thermal paste still has resistance. You should only use a thin layer.

congrats, you built a heater ;)

The problem with this air conditioner is it's efficiency ,because peltier is producing heat and it produces cold and it also consumes 240w of power.

That is absolute genius, Kenh!!

p.s. just in case any haven't understood, you mount this inside your house to an external vent or to an open window and use board to block up the rest of the space. If you just plonk it on the coffee table and turn it on you wont find any difference unless your house has stopped obeying the laws of thermodynamics. Neat idea friend.

Two thoughts on this. First, this would be really useful while camping provided you had a solar panel and a battery to hook it up to. Second, 5 ads on an 11 minute video?? Holy crap that's excessive.

Eficiencia muito baixa para o uso "domestico:... peltier = 400w, (100 btus + -) 24h/D = 9.6kw A/C = 7500 btus 900w 10h/D = 9 kw 75 vezes menos eficiente, ou seja: "custa" 75 vezes mais em energia. Mas achei interessante o processo de montagem! Deu pra aprender algumas "tecnicas". Obrigado por compartilhar conosco!

good idea ....... for air conditioning.but peltier suits to refrigeration of both hot food items and cold food items as we fix peltier modules with an insulating material at centre..chilled side is used for cold food like ice creams and drinks.,,,and hot side is used for bakery items like puffs,rolls,etc....so that its heat is also be utilised with mini refrigeration

Exactly, as many have suggested, you need to vent the hot air to outside.

This is actually an electric heater....

Congratulations! Your system is less than 1/3rd the efficiency of a compressor/condenser evaporative system...

What you really should do with this is submerse the heat(cold) sink in water. Water can freeze around the fins offering longer cooling. You can even shut the peltiers off after a certain amount of time to save on electricity. These put off alot of heat it's a good idea to figure out a way to vent the heat to the outside just like a traditional ac. Or just put a few up into your ceiling and vent the heat into the attic.

The idea is nice. Would maybe use heatsinks like the cold-side one for both sides and then have the fans blow in one direction over it making it possible to exhaust the hot air out of the room.

me parece bueno, solo te falta agregarle algun conector tipo manguera para que saques el calor hacia otro lado y no elimine el efecto

By one side produce hot air, by the opposite side cold air...... Sum is equal zero......

Use glasswool insulation to insulate the inside part from the outside part. Also use a closed-loop cooling system using a mixture of car antifreeze and water (1:1).

Bro it will produce more heat then cool air in same room . Let thet heat output side be out the room

Needs a secondary switch to turn on the cold side fans since you may want cold air blowing, not room temp air. Needs an exhaust vent to a window at a minimum. However, if you stored heat in water and could sewer the water so the heat is lost, that would be more effective standing alone. Very expensive cooling with required upgrades, only adds heat to a room without the fixes.

Good idea, good building skills BUT DUDE you didn't provide any Infrared Temps? Input/Output TEMPS or Watts or RPM, or CFM flow?? REUPLOAD WITH THIS!

use tubing to dispatch cold air, this device should be hanging outside (nice idea) dry but kinda cool

the room just got hotter with this heater

Looks interesting but that’s it. This thing is completely useless because it’ll output more heat in the same room instead of cooling it down. Because the one side of the Peltier gets cold an the other gets hot. And as the other side gets hotter the cold side will begin to heat up as well. Plus the hot air from the hot side is being blown into the same room you’re trying to cool down. It just doesn’t make sense.

Appreciate your efforts , nice video . Hey can you tell me what is the temperature at the cooler and what is at the hotter part

Your big fan i maker official

Bro air conditioning is not just making air cool it's also about controlling humidity, air motion. You are just removing sensible heat not latent heat. So don't make you confusion again bro. Don't feel bad just trying to help..🤗🤗🤗

🐸 very disappointing vid! Not even one temperature mesurement at the of the vid 🤣very well made box for birds though✔️

Good job on making a solid state air conditioner( no compressor) ,that is awesome!

if you left it where you could open it and fill all around the heatsink with ice it would work alot better in my opinion also you should do some tests and show how cool the air coming out is. not just end the video so everyone makes it to find out it does nothing but blow hot air lol definitly needs some improvements for sure i think it would be a decent design if you made it water resistant and to were it could be filled with ice every now and agian for extra cooling lol kind of like the diy bucket air conditioner do I think if you combined the 2 It could be really nice for a smal area like a tent lol

A very informative practical video just requires some V/O as well. I’m not sure about how well it actually worked but you are very good at measuring & building with Aluminium. 😀

nice but dude, you must encapsulate and add a tube to the exterior, this way the heat of the peltier is moved out and inside is just kept the cool air,

It's good ideas PUT us need Experience

I bet this tech will get more efficient over the years and will replace current gas systems

Should be titled " How to build an inefficient fan"

faltou mostrar com um termómetro a temperatura que essa jóia da!

Not to mention blowing all those hot air just behind it, I think air from outside goes into those holes and only few will brush up the cold sink. Probably spewing out cooler air than normal but that's it. Running for a few hours will heat up the room real fast.

This is the 1st method of "A Thousand Ways to Make An Air Cooler". I made one and then I realized that I should use the cold side of it to cool the hot side.

As pointless as leaving your fridge door open to cool down you house. Doesn't work.

This isn't going to work unless you radiate the heat outside.I built the same but the modification I made was that I attached a watercooled heatsink on the hot side and attached another water cooled heatsink outside the room with a large fan and interconnected both the heatsinks to radiate heat outside of the room. I also attached a water pump to regulate the water in the pipes. Worked very well. It can't really replace a real air conditioner but it's a fun project. I'm also thinking of using an arduino to make a bluetooth remote for it to monitor temperature on my phone and alter the fan speed. But again it's just a fun project and can't really replace a real air conditioner.

Wow i like it

You not measure how much degres the result

I'm sure this guy will build his own private jet

The heat needs to go outside or you make only more heat in your room xD

Awesome

switching in rush current on the DC side of 12v, 30A. dope idea.

OK. Measurements? Results?Effectiveness? Tempreature? What are you doing with the moisturisation?

Need temperature testing

I like it... good demonstration of the principle.

there is one design flaw, air should come through heatsink at cooling side only, that should have been closed with another layer , so the blowers will get air through cooling fins only. Good Job by the way

your cooling the room at the same time heating it from the back, those peltiers produce more heat than cold

How to fry 4 peltiers in under 1 hour!

Also add some details of products, After u have done the project, show us output like temp, electric used etc.

With this, you might be able to cool a small closet if it were heavily insulated.

As good as it might look, peltiers are highly inefficient. They have an efficiency of 10-15% of ideal carnot cycle which if not done properly can drop to 2%, while conventional VCR cooling system have an efficiency of 40-60%. Which mean if you supply 240 watts of electricity, assuming efficiency = 10%, just 24 watts are getting used for cooling, while rest is wasted as heat. And don't even think of using it in a closed room, unless you mount it on a window with hot side out.

It is not air conditioner its just an air cooler

Very nice but without evidence. and the evidence is essential to refute that the invention is viable. I give you some advice for you or for someone trying to experiment with these cells: The thermal difference of these cells is about 60 degrees from one face to another, so with a simple fan and 4 cells it is impossible to have a dissipation temperature decent that to cool it must be between -12 and -15 degrees (that is, a thermal difference of about 85 degrees Celsius) which is what I have achieved with a single Peltier cell; for this it is better to cool it with liquid cooling and radiator). It is also advisable to put a thermal fuse of about 60 degrees in the hot part to avoid damaging the cells. I hope I have helped those who want to experiment with these things. Greetings.

nice wind blowers in one box

i can imagine the NOISE 🤯

trying adding a voice over explaining what you are doing.

This mit also work really wall as a PC radiator cooler as well mounted on the the front where u mounted the green basket bottom or as fish tank water chiller similar to 1 of your builds keep it up it gives me few ideas for me to try 💡🛠

great that you carried it out. I guess the cold air flow path is not in the right way.And need to reduce the speed of cold fan to let the air chilled before out.

Ola Hello, this is brazil. I really liked your channel friend.

there was no temperature checking before after?

Looks Great Brother ❤️ thansk

A cool breeze is in the room. But hot air is also in the room.

A typical split air conditioner has a coefficient of performance around 3 or 4. Peltier coolers have a maximum efficiency of 10-15%, meaning an air conditioner is around 30 to 40 times more efficient than Peltier coolers. - this is a horrible idea. You would have better luck leaving your fridge door open.

Efficiency = 0, and more heat in the room because you have the power supply 😊, you need to extract the heat out of the house!

Nice Room Heating Unit =)

Bade cooler me set karke Vedio banao

Well that's a pointless machine, in a hot room it will just make the room hotter apart from a tiny area in front of the cold side. A better design would have liquid pumped the heat to a second unit that could be remotely mounted on the outside of the room or whatever you're trying to cool.

Can u please tell me what is the name of that sheet that u used for building this cooler is it plastic,cardboard or anything else please ans. Is this really works?🤔

In addition to this, put some wire mess, the kind that is used as window screens for the intake holes on the main heat sink, it will keep foreign objects out of the cavity.

Peltiers are good for cooling small things where there is no room for standard cooling systems, but they have terrible efficiency which makes them practically useless for large cooling jobs such as air conditioning. A portable cooler is about the biggest application that a peltier makes sense and even that is stretching it.

if your intension is save money... buy a regular air conditioner... Peltiers are stupidly inefficients... ever more than regular AC.