Industrial Refrigeration system Basics - Ammonia refrigeration working principle

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Industrial refrigeration system basics, in this video we'll be looking at how ammonia refrigeration systems work, starting at the basics to understand how industrial refrigeration systems work. We'll be looking at system schematics and animations to build your refrigeration knowledge. We cover why we use ammonia, where we use industrial refrigeration, single stage systems, two stage systems and cascade systems.
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Пікірлер: 237

@EngineeringMindset 5 жыл бұрын

⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕ PayPal: www.paypal.me/TheEngineerinMindset

@bmeproductions5926 4 жыл бұрын

Thank you

@josafatcolina3075 3 жыл бұрын

what is the condensing temperature of co2 and evaporating temperature of ammonia in the cascade condenser?

@AllanTanabe 3 жыл бұрын

Why some systems has Ammonia pump and some systems don't?

@laylow597 5 жыл бұрын

I've been in the business for 22 years and this is by far the best e learning I have ever seen. Thank you keep up the good work.

@juniorbovilleakalegendary2993 3 жыл бұрын

Hey

@juniorbovilleakalegendary2993 3 жыл бұрын

I can get some help from u since u doing for 22 years

@abazism 2 жыл бұрын

How much dose a technician makes in industrial refrigeration?

@vallexd5923 2 жыл бұрын

@@abazism basic salary in my country

@varrisprancisco7891 7 ай бұрын

I need your help, I want to be an AC technician. Do you want to help me

@tripplewhipper 3 жыл бұрын

These have got to be the best laid out videos and explanations available. Thank you

@aubreyroche5080 2 жыл бұрын

Awesome... I am an Industrial Supervising Electrician. We work on all Electrical and Control for these systems, while also doing Everything else that is Industrial Electrical. Loved this Video !

@darshankuwar4914 5 жыл бұрын

Thanks eng. Mindset....this video helps me lot about my work......be proceed more video on this topic in detail to solve problem in industrial refrigeration.

@AliMohammad-es4ek Жыл бұрын

You will definitely be rewarded by God for this...as you are helping a lot there for free...Love you man

@norbertopanes7262 2 ай бұрын

I had been in the business for 37years and i like this e-learning, Thank you keep up the great works.

@methuselahbwalya9981 Жыл бұрын

Thanks for making it easy to understand. Been working on an NH3 plant Ref for 11 years . NH3 as our primary & H20 / Glycol as secondary Ref . Thank you

@brandonbarnard3660 5 жыл бұрын

Very good video, doesnt get no better than that for simplicity.

@speciosa146 5 жыл бұрын

This is fantastic, i love the smooth animation and easy explanations. I just found this channel and if your other videos are as good as this one ill be sticking around for a long time. Thank you so much for these awesome videos. P.s. Shouldnt there be a regulating valve on the cascade condenser?

@timothyjamieson1282 2 жыл бұрын

Agree, very well done and clear animation. I also will be watching a lot more. Thanks!

@gregorystewart4887 3 жыл бұрын

thank you for the video, I'm new to ammonia refrigeration and found this help full we have

@user-mt3ee7wb7s Жыл бұрын

Very well explained. Thank you

@Coltography 5 жыл бұрын

Could you do a video on how purge units work for ammonia systems? Specifically the kind which condense using the suction vapour line and not a seperate refrigeration system.

@mohammeddanishsayed7142 22 күн бұрын

search how auto purger will work you will find

@Fakhrealammm 5 жыл бұрын

Always great. Upload a detailed video please.

@allanweitman 2 жыл бұрын

I'm currently taking my power engineering level 5 and this is super helpful for understanding when you are just learning. The videos they have with the course are so boring/terrible/old. I'm so glad I found these

@mathankumarn1934 5 жыл бұрын

great video, Sir what are the factor to be considered for a water chiller design and how to select compressor and condenser for those design

@topcattai 4 жыл бұрын

Thanks for the hvac vids man.

@lifeinthearclane6240 5 жыл бұрын

Love the videos keep em coming

@XsmokebreakX Жыл бұрын

Just started hvac this was extremely helpful

@joshuastull725 2 жыл бұрын

Would you consider tackling the absorption ammonia refrigeration system? I realize these are small scale but your delivery is so great, it would make my day:)

@CBKCUSTOM Жыл бұрын

I see u on facebook commenting about a post of screw compressor and then search it on yotube then i saw u again heehhe are you a mechanical engineer? Btw i am a 2nd year mechanical enginnering student. Take care always!!

@miribejko6293 4 жыл бұрын

Thanks for the vid.really useful and informing.

@KarmaxDK 5 жыл бұрын

Good video, keep it up my man

@EngineeringMindset 5 жыл бұрын

Thank you

@insanity230 4 жыл бұрын

Great videos very educational and appreciated

@vegassasin 2 ай бұрын

Ive been on a few of these projects in Aus. as a pipe welder. Its great to learn more about them as im normally hyper focused on my scope of works on site.

@yowjoral8479 5 жыл бұрын

thank you for this vid. im gathering ideas for LIQUID AMMONIA :) keep it up!

@JohnSmith-xk8rr 4 жыл бұрын

NH3 systems require a T-machinary room classification. Without proper emergency pressure release systems, diffusion and fire suppression the risk of a toxic explosion is too high and therefore only certified techs can make physical changes to the system and certified RO/PE's can operate it. If you want to experiment with refrigeration, I'd recommend using something inert and learn about corrosion, piping codes first. I have personally rigged a commercial AC to the side of my house and use the heat in my greenhouse. It can take litres of water out of the air and cool my entire place below 60 degrees. The waste heat can become it's own project. If this field interests you there's extremely good jobs in heavy industry. I'd say it is less of a career because you will always be training and working on new systems unless you find a chief plant operations position but eventually you'll want a bigger system to operate as you gain more firing time and experiance.

@gregorymalchuk272 3 жыл бұрын

@@JohnSmith-xk8rr Do You have it rigged as a reversible heat pump, or did you just place a condenser in the greenhouse? There are some circumstances where you may need to cool a greenhouse too. Is the air conditioner new or an old unit removed from a residential home? What refrigerant does it use?

@user-ex6uk6ye3o 4 жыл бұрын

Thank you sooooooo much ❤️ this video saved my life

@raymondmosher5583 4 жыл бұрын

you always have the best tech videos

@rishuraj8824 3 жыл бұрын

Excellent ...just made it so simple

@changvillacampa8513 4 жыл бұрын

i like the engineering mindset and thank you god bless

@henrybartlett1986 4 жыл бұрын

Excellent , as usual.

@abhijeetlage8145 4 жыл бұрын

man....u are a saviour...

@refliconinc.official5140 2 жыл бұрын

Good video, thanks engineering mindset team

@delas8821 4 жыл бұрын

Thanks for the information..👍

@Timeshallpasss 4 жыл бұрын

Greatly done 🙏🌹

@strikejones2771 4 жыл бұрын

Great video to refresh yourself from time to time.

@moveit707 3 жыл бұрын

So informative thanks

@passionateengineer04 4 жыл бұрын

Good work, i will share video on my channel about industrial refrigeration system that are currently installed in our factory.

@johnnyparterlee7066 2 жыл бұрын

Beyond awesome, Cheers!!

@kaustubhsawantdesai7586 5 жыл бұрын

Hello engineering mindsets team I have a question regarding the industrial video with ammonia as refrigerant. In the video it is shown that cascade intercooler or heat exchanger is used to maximize the refrigerating effect. How I can use the same in 60TR block ice ammonia ice plant where we produce the ice for marine products so that I can increase the refrigeration cycle more efficient and decrease the time of production.

@watsonwolfe 3 жыл бұрын

Outstanding!

@alexramos1435 Жыл бұрын

First day doing industrial refrigeration. Worked on an ammonia chiller and this video just simplified all the shit that I saw today. I bled out the oil into a bucket and got a good whiff of that good ole ammonia. Smells like death.!

@liogonzalez8813 4 жыл бұрын

Great video!

@Praveen271 4 жыл бұрын

Good explanation..!!

@Sachinkumar-hy3ti 3 жыл бұрын

Ammonia refrigeration is my final year projects topic ..✌️

@panhaven739 4 жыл бұрын

Thanks for video

@xer00style Жыл бұрын

Thanks a lot for sharing this contect in the way you does. Great to have a channel wi +2M Suscribers and sharing knowledge as it should be.

@ralphnabozny8494 5 жыл бұрын

this is very good

@thomasalbert6634 11 ай бұрын

Do you have an ammonia refrigeration example similar to the "Design a refrigeration system" video with example calcs? Not sure how to deal with the liquid/vapor mixture coming out of the evaporator. Thanks. These are all great videos!

@JayeshPatel-sf5er 4 жыл бұрын

Superb channel

@BayusjayaHVACR 4 жыл бұрын

Hy do you have video how ultra low refrigerator work im from Indonesia

@EngineeringMindset 5 жыл бұрын

How to read *CHILLED WATER SCHEMATICS* here ➡️ kzfaq.info/get/bejne/l9FlZKd5ps_Zh6M.html

@Bushvvacker 2 жыл бұрын

Great explanation... I have an alternate method to this that is way more efficient than a cascade. We have hit -112c with a single stage system and can get much lower. Patent Pending!

@ryanm7249 2 жыл бұрын

Is the system you have and are referring to an altra-low freezer?

@Bushvvacker 2 жыл бұрын

@@ryanm7249 it can be used as an ultra-low freezer yes. We see it having a multitude of uses across many industries.

@dan4age 2 жыл бұрын

Do you produce these systems yet?

@Bushvvacker 2 жыл бұрын

@@dan4age We have been in production since 2020 with multiple working models currently in operation.

@resurgensix 2 жыл бұрын

Love it!

@stevelamperta865 2 жыл бұрын

The regulator valve and expansion valve are almost the same , the only difference is the expansion valve has much better and consistent adjustment for the very much important amount of liquid ammonia going into the evaporator . The regulator valve controls the pressure differential between the condenser and receiver . the head pressure runs around 125 an 150lbs , an the receiver runs at 75lbs pressure differentials are key , as that's how the system works. I was a manager of several companies with ammonia refrigeration systems .

@pradnyashankardas6435 Жыл бұрын

Yes great, Pressure difference is the key

@thomassim5600 8 ай бұрын

What will happen if there's a high pressure differential

@bosonglin7462 4 жыл бұрын

Thx!

@peanutpotion 3 жыл бұрын

fantastic

@michael33132 4 жыл бұрын

Muy buena imformacion ouede incluir sudtitulos en español

@EngineeringMindset 4 жыл бұрын

Española aqui: kzfaq.info/get/bejne/bbB0oNl138iZfGw.html

@user-yd4xz1wj5p 4 жыл бұрын

Good job! Subscription!

@STEINYY 3 жыл бұрын

god bless you sir! god bless

@titusnunumbal2186 2 жыл бұрын

Thanks

@rieon-plumbingfan 4 жыл бұрын

I love basically anything industrial :P industrial style stuff looks so good :P

@coldude2559 Жыл бұрын

Great 👍

@vijithamuthugala1829 Жыл бұрын

Awesome presentation ! . I found this while searching for Amonia system issues as I am having prolong issue in my Ammonia compressor . Grateful if you could support me to solve it. We have a two stage ammonia compressor connected to Blast freezer of -40 C . At start it perform well and while room temperature down to -30 C Compressor oil pressure reduces gradually below to the set point ( 1,5 bar) and shuts down . All the components were checked , replaced ( bearing , pump , filters , oil etc ) . nothing didn't solve the issue. But one day in a test run suddenly , the machine picked up the oil pressure and run as normal. It continuously ran for two weeks without problem and all of a sudden again the same issue occurred . Now we are helpless . If anybody can support us, it is very much appreciated. !!

@LC-qi5ff Жыл бұрын

How did it go? Please tell us

@alnonymous9361 4 жыл бұрын

slight error... the cascade condenser is the evaporator of the high temp circuit and the condenser of the low temp circuit. At 8:00 you said it backwards.

@jamiyapolangi4537 4 жыл бұрын

Hello, can i message you I would like to know how Ice plant works I'm planning to assemble on my own thank you hope you notice me.

@yl7108 3 жыл бұрын

Good point! I was going to point that out too.

@alroy12345 4 жыл бұрын

Anything on dissecant dehumidifiers??

@thomassim5600 8 ай бұрын

Can u share more about the pressure equaliser pls

@toyinorodare4072 5 жыл бұрын

Please where can I get practical training on INDUSTRIAL REFRIGERATION please help me out.

@isaiahisrael421 Жыл бұрын

What is the purpose of the EQ pipe in an ammonia refrigeration system?

@tsmspace 5 жыл бұрын

BUT, CAN i have a portable "cooling" unit that generates enough power from the heat to charge my devices.???

@ferdioandrianto6086 4 жыл бұрын

hey brother i have some issue with electricity regarding to High Med Low working condition. could you help me with this? as high pressure consumes more electricity and I dont know how to calculate cost thus I dont understand with "working condition" means

@josafatcolina3075 3 жыл бұрын

what is the condensing temperature of co2 and evaporating temperature of ammonia in the cascade condenser?

@pervaiziqbal-jw6is Жыл бұрын

Thanks sir very good video nice 🇵🇰

@kylenorton15 5 жыл бұрын

One key factor that was forgotten is that ammonia is highly corrosive to anything containing water, including your skin. Copper also can’t be used on ammonia systems at all

@bigkirbyhj666 2 жыл бұрын

How about galvanized steel?

@entity6966 Жыл бұрын

@@bigkirbyhj666 i dont know anyone that uses galvanized pipe. however using stainless or just black iron is fine.

@ggproductions8434 Жыл бұрын

Ammonia absorbs water so it dehydrates your skin.

@kuluk6254 8 ай бұрын

Can't use galvanize steel, silver,gold, copper n brass

@antoniomiguelamoroscrippa8467 4 жыл бұрын

Great!!!!!. Can you put subtitle in spanish,please?. Thank you so much.

@EngineeringMindset 4 жыл бұрын

Española aqui: kzfaq.info/get/bejne/bbB0oNl138iZfGw.html

@fivespeed2 4 жыл бұрын

So the intercooler is calling for the liquid from the HPR?

@roflex2 3 жыл бұрын

Can you do a video on the old propane fridges

@ganeshsaren8426 4 жыл бұрын

Good

@clekkennels 5 жыл бұрын

Awessome

@oregonphototrekker8894 4 жыл бұрын

Thanks for the video but where is the king valve located?

@CoastalSphinx 3 жыл бұрын

At the receiver's liquid outlet.

@mercnathanielcavada3361 4 жыл бұрын

The liquid separator tank, is this thermal insulated? Please reply. Thank you

@kasslerify 4 жыл бұрын

yes it is. Everything after the expansion valve coming after the receiver is insulated.

@ZiTop2 5 жыл бұрын

@1:17 wow, all ammonia plants really do look the same

@rain0aldwaib 3 жыл бұрын

what about the power consumption compared to vapor compression cooling ???

@chriss4365 10 күн бұрын

Can you use it with a water pump 2 coils and 2 fans?

@stevelamperta865 2 жыл бұрын

The expansion valve and the regulating valve you have backwards ! The expansion valve goes in between the evap and ammonia pump . And normally a single stage system doesn't use ammonia pumps , they run off the receiver pressure . the regulator valve belongs in between the condensor and receiver to put a diff of head pressure of around 150lbs to 75lbs receiver pressure.

@bradvincet1848 2 жыл бұрын

Thanks for clearing that up, I was going to ask the same question. If they're going to make informational videos they need to get the facts straight.

@entity6966 Жыл бұрын

they can and do have pumps. you're thinking of a single stage system with control pressure receiver and dump tanks, which have no pumps but instead rely on a set pressure of ammonia sitting in a vessel to be fed into a tank and then pushed by hot gas to the evaps.

@Lukelins1 2 жыл бұрын

I was on an ammonia hazmat team. We did have a leak that I discovered in the beef fabrication department while working food safety.

@eng-vf2gh 21 күн бұрын

Dear sir nice video . But i want to know when calculate the effencity of refrigeration cycle we divide out put by input . And we consider only workdone by the compressor and not consider work done by condensor fan as we are paying charges to operate electrical energy

@9440267876 5 жыл бұрын

Plz tell me how to calculate TR calculation for diffrent evapratering temperature

@EngineeringMindset 4 жыл бұрын

Watch this kzfaq.info/get/bejne/iraRldlqzqqpfpc.html

@realvanman1 5 жыл бұрын

7:59 Cascade condenser, Acts as a condenser for the LOW temperature circuit, and an evaporator for the HIGH temperature circuit. Yes?

@JDHolmes131 5 жыл бұрын

Yes

@dangoldbach6570 4 жыл бұрын

Yes, correct. He stated it backwards in the vid

@spnenter6423 2 жыл бұрын

Best

@superoxidedismutor 5 жыл бұрын

What's the point of the intermediate pressure refrigerant line plunging in the liquid in the intermediate cooler compared to having it meet the outlet of the intermediate cooler on a T then go to the high stage compressor suction? Pressure equalization and better desuperheating of the discharge gas of the low stage compressor?

@Enrique-yb2ow 5 жыл бұрын

Denuris Turgryn In my personal experience, the low stage compressors discharged vapor at around 30 psig and about 120 degrees f. If you piped that superheated vapor straight into the suction of a high stage compressor, it would not take very long for that compressor to shut down on high discharge temperature. Even mixing with cold vapor from the intermediate vessel will not help much in desuperheating, because that cold vapor has already done its job. Once evaporated, ammonia’s ability to absorb more heat is practically nothing. Remember that the maximum transfer of heat is latent or hidden and occurs during a change of state. The intermediate cooler, in theory, brings the low stage discharge vapor temperature back down to its saturation temperature. The flash gas created, when superheated low stage discharge vapor makes contact with lower temperature liquid ammonia, removes a tremendous amount of heat. The high stage compressor then compresses it again up to around 150-180 psig and about 120 degrees f. These numbers are from a system that used liquid injection cooling for its compressors. Hope that helped.

@DingoHammer 2 жыл бұрын

8:53. How can increasing the pressure of the receiver help liquid flow more easily from the condenser to the receiver?

@entity6966 Жыл бұрын

because the increase pressure pushes the ammonia trough

@geofferyromany4634 2 жыл бұрын

Can LH2 be used in the exact saame way? If not how dan it work? Thx

@Alexander-fz6ps 4 жыл бұрын

how Vapour absorption system of ammonia works with utilising compressor

@MaheshKumar-et9kl 4 жыл бұрын

Please make a video on oil flow screw compressor using ammonia as refrigerant ....

@EngineeringMindset 4 жыл бұрын

Check our chiller compressor types kzfaq.info/get/bejne/baiRm8KQ2NbPhI0.html

@DavidFMayerPhD 4 жыл бұрын

Questions: 1. What material is used to contain the ammonia? 2. How do you keep the ammonia dry? 3. Why do you use isenthalpic expansion instead of isentropic expansion which should be more efficient, at least, in principle? 4. What kind of seals are used on the compressors to keep the ammonia from contact with the motors?

@juansalazar4325 4 жыл бұрын

1. You can contain ammonia in tanks, while pressurized. 2. The only way the ammonia get wet is if there is a leak and air gets in, this happens in cases in which you are working in vacuum. To vent out the air, you use an air purger. 3. For this you need to understand the refrigeration cycle with a pressure vs enthalpy chart. In a sense, you need to keep the enthalpy in the same level after it passes through the condenser. 4. The motor is connected to the compressor through the shaft. The compressor would have a shaft seal to keep the ammonia within the compressor. There are videos on how a shaft seal works. Hope it helps!

@DavidFMayerPhD 4 жыл бұрын

@@juansalazar4325 Clarification: You wrote: "You can contain ammonia in tanks" What material are the tanks made of? "You need to keep the enthalpy in the same level after it passes through the condenser." Why?

@CoastalSphinx 3 жыл бұрын

@@DavidFMayerPhD Ammonia is contained in steel. Steel is adequate and inexpensive. Never use copper or copper alloy such as brass or bronze - ammonia will corrode them very rapidly. Isentropic expansion is difficult. A machine is needed to extract work. The fluid is a gas/liquid mixture so a controlled expansion is even more difficult. And the efficiency loss from the isenthalpic expansion is small because the amount of expansion is small, most of the expansion is due to isothermal evaporation. So even though isentropic expansion is best in theory, practical limits favor isenthalpic expansion.

@entity6966 Жыл бұрын

1. stainless steel and black iron pipe 2. using purgers and to take out non condensable as well as getting anhydrous ammonia when you first fill up. 3. i dont know tbh 4. its a carbon and material that sits on the shaft of the compressor. called the shaft seal that prevents push back. it usually sits in oil to prevent any leakage and they get replaced every so often depending on the wear they get. usually there isnt any direct contact what so ever with the motors unless theres a huge problem.

@yashk1964 5 жыл бұрын

Can you please expound on the need for a "pressure equalization" pipe that connects the high pressure vapour pipe to the receiver? What is the need for that line and what happens if it's not there?

@robertrocheville7769 5 жыл бұрын

Basically when you are pouring fluid down a tube into a tank the vapor on the tank takes up space that is being displaced by the liquid that's coming in. The vapor tube allows that vapor to go somewhere and also allows it to be further cooled.

@CoastalSphinx 3 жыл бұрын

Also, unequal pressure makes the condenser less effective. If the system has to use a pressure difference to push liquid from condenser to receiver, then the condenser will be partly full of liquid, and liquid has much less heat available to remove compared to vapor. With a pressure equalization line, vapor can flow up from receiver to condenser, allowing liquid to flow down from condenser to receiver. That keeps the condenser liquid level low.

@jimbojones806 3 жыл бұрын

@@robertrocheville7769 would it be fair to say it allows the receiver to fill up with liquid by purging out the "air pocket" trapped in the receiver vessel

@robertrocheville7769 3 жыл бұрын

@@jimbojones806 Sounds very fair to me.

@takiyasamsama 5 жыл бұрын

This means cascade system uses less ammonia, thus gives greater savings in terms of ammonia maintenance cost, right? On the low pressure system; what refrigerant is generally used? Glycol?

@EngineeringMindset 5 жыл бұрын

CO2

@danielfitzpatrick5799 5 жыл бұрын

confused.. what happened to generators, analyzers and rectifiers in ammonia systems.. different from what i have learned about ammonia use as a refrigerant.

@JohnSmith-xk8rr 4 жыл бұрын

What was considered a cascade system in this video overlooks the type of 2 or more phase systems. It is a brief overview but detailed enough as an introduction. Most ammonia plants are 2-phase where brine is chilled by ammonia evaporating over pipes filled with brine. The entire rest of the system is based around removing the heat after compression inorder for the ammonia to be evaporated again. The instrumentation and automation side of this is easy class 4 or class 3 nitty-gritty stuff.