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.
this means that the heat he is releasing in the winter will just be cooled down from the other side and vice versa so no change in the room temperature
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.
This stuff is very exciting and I'm in the project of designing an insect farm with peltier heating and cooling but I'd be very happy to get some support. Please, contact me
As an engineer I'm confused, there is no ammonia, so how can their be nitrate diffusion? It's not like he's using this as a cooler housing food... I highly doubt you are an engineer
Who said it was efficient? It is just effective. Any air cooling system produces heat by the other side, your refrigerator, freezer, air conditioner... anything. why do you think they are installed out the window? Your refrigerator or freezer cools inside the box, but touch outside back in the pipes.. it's hot. Stupid noobs. Pd: the same way air conditioners, copper pipes get hot as my dick that's why it has giant fan outside the room to cool the presurized gas inside pipes...
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?
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.
@Flavio Felix Estas coisas são demasiado ineficientes. Gastam demasiada energia para apenas um ventilador que não chega aos calcanhares de um ar condicionado normal. Servem apenas para pequenos frigoríficos infelizmente
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.
I water cooled hot side heat sink and it got down to negative 18 degrees Celsius on cold side so adding a home made water spray kit like a winscreen washer setup works great as long the radiator your using is like a transmission cooler with high power cpu fans
Mosfets are bad for peltiers. The constant switching on/off allows the heat to transfer from the hot side to the cold side for the micro seconds the mosfet turns off. It's better to have a constant current.
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.
Unless the device is fixed to an opening on the outer wall of a room, the heat generated by peltier would be ejected to the inside of the room itself even though the other side of the device will be ejecting cooled air. So these will compensate each other and the room will not be cooled ! He has not shown us the temperature of the room after the device was switched on !
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
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.
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!
I was looking at this to cool a van conversion until your reply. Your reply was very good and I was wondering what you might suggest to use to cool a van conversion with 12 or 24 volt? There are many 110 volt units but very few 12 volt that I could find. There are 12 volt Marine units with water cooled condensers but not 5k to 10k btu units that use air to cool condenser. With 12 volt you don’t have the losses of the inverter. Clearly you know your electrical engineering!
suppose to be an AC for summer but it works both ways or it does not work in any ways because the heat will be cooled from the other side so no change in room temperature
@@RaniRani-zt2tr unless yo use your phantasie and good willing mindset than you understand that a tube can solve this and maybe on other ccuntries the windows are made different so you can just easy attach it at a window and close gaps with styropore...just in case you didnt find a positive mindset :))
@@LetsFixITJoe yeah you are 💯percent correct but the problem is that not everyone has the perfect windows and that not everyone knows that AN EXHAUST IS REQUIRED TO AFFECT ROOM TEMPERATURE 🙃🙂🙂
@@RaniRani-zt2tr its not about the perfect wiindow...jsut told you that there are a hughe differences in windows internationally...and its up to you to find the best solutions for that :) any child knows about the need of a exhaust ;) by the way, if you have a solution there was never a "problem"
I will give it credit though after watching this and several other videos on attempts to make one of these i have come up with what i believe to be an optimal and effective design for a desktop aircon using the peltier modules....
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.
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.
Correct. The fans need to be virtually in contact with the heatsink fins (CPU coolers are OK,) to force as much air as possible thru the fins, and in contact with the grill so there's no recirculation of air for either heating or cooling spaces. Also, bolts etc passing from the hot space to the cold should ideally have thermal insulating washers between them and at least one of the heatsinks (a washer with a hollow collar, like transistors use) or should be non-metallic bolts. This especially applies to the 2 bolts fixing the heatsinks to each other! They are a direct thermally conductive path from the hottest point of the hot side to the coldest point on the cold side, and form a perfect heat shunt in this design!
Also, he leave the fans on cooler side taking air from out of the heatsink, no sense, he will take air from out of box directly to fans, without going through the heatsink first. He had two options, or put the fans directly on the heatsink, so that the fans could only grab air from the heatsink, or the second option was to put a cap around the heatsink to force the air to go through the heatsink first before pass to the fans. It is also very inefficient, you cannot cool a room with it, although you could make a smaller version with one or two peltiers to keep temperatures inside a computer case low if you have a very high ambient temperature. or even on an electric control board
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
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 💡🛠
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
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.
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.
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.
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
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
@@wishdrftr it appears to be what's sometimes referred to as alupanel which is an aluminum clad (alu) plastic sheet (usually LDPE). It's quite handy stuff.
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).
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.
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.
You can buy PC water cooling units for around 100 dollars. They cool cpus that quite a bit of heat. Might be a cheap way to get a whole premade cooling solution.
@@oscarservices8035 Hey are you an engineer? I'm a product designer working on some cool things for some cool clients, let me know if we can work together?
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..🤗🤗🤗
@@sanjayapanda2227 It does not remove completely but controls it by controlling humid air. And control can only be achieved by removing humid air. While cooling load calculation we consider moisture as source of latent heat. On the basis of which we can decide how much ton of refrigerant is required.👍🏻👍🏻👍🏻👍🏻👍🏻
@@sanjayapanda2227 In the above video he is just reducing the temperature below surrounding but it does not maintains it hence it a type of cooler or chiller. I am trying to say that above project does not match with the basic definition of air conditioning it.👍🏻👍🏻👍🏻
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.
It's an interesting idea, especially as a diy teaching tool.not sure what use it could be considered efficient in; since I am not well versed in the "Peltier Thermoelectric Effect". It is interesting.
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.
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.
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. 😀
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.
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.
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.
Coloque as duplas em formato sanduíche e conecte-as em série. Terá quase metade do consumo e muito mais eficiência. Nesta configuração algo em torno de 2 graus. Pode chegar a até 3 em formato sanduíche, chegando em torno de -10º
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.
Hey inspired by many such videos I experimented with 2 peltiers on two sides of 80x80 mm piece of car radiator weighing about 78 gms. It could lower temperature of piece by 20 °C from ambient temperature without cpu cooling fan (80 mm rated 21cfm). But when fan was switched on, the piece quickly returned to ambient temperature despite peltiers were working. Thus very small objects can be cooled with peltiers with direct contact without fan. For AC for cooling room in the air perfaps 1000 peltiers together can't work and imagine the power that it will consume.
Very good way to saw the branch on which we are sitting. Already, an air conditioner with a classic refrigeration unit is not very ecological, so what about something like this with even more polluting components? It's a big big waste!
Inspired by many such videos I experimented with 2 peltiers on two sides of 80x80 mm piece of car radiator weighing about 78 gms. It could lower temperature of piece by 20 °C from ambient temperature without cpu cooling fan (80 mm rated 21cfm). But when fan was switched on, the piece quickly returned to ambient temperature despite peltiers were working. Thus very small objects can be cooled with peltiers with direct contact without fan. For AC for cooling room in the air perfaps 1000 peltiers together can't work and imagine the power that it will consume.
At least he's trying do you know how Manny times it took to make the lightbulb or the airplane? You don't know how old or what resources he may or may not have, that's so narcissistic; tbh it's you that sounds like a disappointment (and this is coming from a furry lol) by downing someone like this just kuz you can and probably don't feel enough validation in your life.
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?🤔
The video title clearly says how to build an AC, that's what the video shows. What the title does not say is "how to install an AC in your wall/window" therefore this video does not show you how to install it in a wall/window.
Good vid keep up ur work and keep improving it put a thermometer in front of the fans if you have one also find a way to exoust the hot air out a window or away from were u have it and the more heatsink area you have to be cooled down the better
When applying current to a Peltier chip, one side gets cold and the other gets hot. Good for picnic fridges. This AC is not energy efficient and the Peltier chips will deteriorate in a short time. The dissipation is lacking. You build well but study before building.
For sure there was some simple items on hand to show us in the video the temperatures on both sides...those were conveniently not used in the video...😰
Figure out how to make a small one that can fit inside a mascot costume, cool it, while running off of a battery pack for several hours, able to change out the battery pack easily.. And you'll be saving a lot of lives of people like me who cosplay at anime conventions.
You should make water cooling for the hot side of the video, cause it also affect the temperature of the peltier in the cool side, i like your vid, keep it up
Using several of these units, say in the roof, and directing the flow through the roof, while breeze refrigerates the hot side, could become very efficient if solar power is used. After all, you need the air conditioning mostly when sun is hitting hard, isn´t it?
![[NEW] How to Make a Homemade Portable Air Cooler](http://i.ytimg.com/vi/z8PhRer6BfY/mqdefault.jpg)
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.
this means that the heat he is releasing in the winter will just be cooled down from the other side and vice versa so no change in the room temperature
@@RaniRani-zt2tr exactly
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.
This stuff is very exciting and I'm in the project of designing an insect farm with peltier heating and cooling but I'd be very happy to get some support. Please, contact me
Exactly, maybe he could wrap em up in fibres
As an engineer I'm confused, there is no ammonia, so how can their be nitrate diffusion? It's not like he's using this as a cooler housing food... I highly doubt you are an engineer
So im trying to make one as well but where do i put the power supply? On top of the cold side? Or where?
Vc esta errado. Não tem nada haver o q vc disse. O dispositivo nao funciona, mas dai dizer q produz nitratos? Vc está louco?
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.
ifell3 yes I agreed!!!
Agreed
Took the words out of my mouth. Not to mention it's very inefficient.
took the words out of my pc keyboard :)
Who said it was efficient? It is just effective. Any air cooling system produces heat by the other side, your refrigerator, freezer, air conditioner... anything. why do you think they are installed out the window? Your refrigerator or freezer cools inside the box, but touch outside back in the pipes.. it's hot. Stupid noobs. Pd: the same way air conditioners, copper pipes get hot as my dick that's why it has giant fan outside the room to cool the presurized gas inside pipes...
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?
Porque dessa forma não funciona, isso é inútil!
@@dfx9798 🤣
Porque nao funciona, por isso
😂
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.
It's very inefficient. Likely consumes upwards of 500 watts and doesn't work
I love how the heat from the peltier just warms up the room more then it can get cooled down
🤣🤣The guy who made this video doesn't think things through
@@kiyoponnn what happened with the window AC installed in the room except outer window.
@@IMRANKHAN-we9un ?
It's like window ac
@@KP-tb5jo Nope, even a window AC has better efficiency than this
i was waiting for temp. test at the end
For the 4 smaller fan are they blowing air in or out ?
What will happen to the condensed air inside ?
@@arifinsoekamto the smaller one is blowing out..on the back it cools the heat sink
@Flavio Felix Estas coisas são demasiado ineficientes. Gastam demasiada energia para apenas um ventilador que não chega aos calcanhares de um ar condicionado normal. Servem apenas para pequenos frigoríficos infelizmente
The temp would be approx 18 to 12°c max
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.
and which temperature you achieved?
I water cooled hot side heat sink and it got down to negative 18 degrees Celsius on cold side so adding a home made water spray kit like a winscreen washer setup works great as long the radiator your using is like a transmission cooler with high power cpu fans
Hi, do you have some papers about it? I am interest in peltier cooling but I don't want to loss efficiency.
Or watercooling systems, like from CPUs.
Mosfets are bad for peltiers. The constant switching on/off allows the heat to transfer from the hot side to the cold side for the micro seconds the mosfet turns off. It's better to have a constant current.
I recommend putting the AC at a window to create temperature differences. Overall, nice work!
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.
Well, that is why he just build the equipment but did not test. Maybe it is useless, but it looks nice as decoration.
... the fans pull the opposite way? what
Unless the device is fixed to an opening on the outer wall of a room, the heat generated by peltier would be ejected to the inside of the room itself even though the other side of the device will be ejecting cooled air. So these will compensate each other and the room will not be cooled ! He has not shown us the temperature of the room after the device was switched on !
He has wrongly fitted peltier module. Hot side of peltier module must be on the heat sink.
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
They are about 2% efficient at generating power. They are much MUCH more efficient at cooling.
I think you should have placed a thermometer nearby to measure the temperature generated by the box.
Peltier is making more heat than coolness, so if it's supposed to work the hot air must be discharged to the outside.
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.
What kind of board they used to put peltier? Any body knows exact name or term for that board. Tnx
SunBoard
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!
I was looking at this to cool a van conversion until your reply. Your reply was very good and I was wondering what you might suggest to use to cool a van conversion with 12 or 24 volt? There are many 110 volt units but very few 12 volt that I could find. There are 12 volt Marine units with water cooled condensers but not 5k to 10k btu units that use air to cool condenser. With 12 volt you don’t have the losses of the inverter. Clearly you know your electrical engineering!
Nice Room heater. Great for cold Days in Winter.
Exactly
suppose to be an AC for summer but it works both ways or it does not work in any ways because the heat will be cooled from the other side so no change in room temperature
@@RaniRani-zt2tr unless yo use your phantasie and good willing mindset than you understand that a tube can solve this and maybe on other ccuntries the windows are made different so you can just easy attach it at a window and close gaps with styropore...just in case you didnt find a positive mindset :))
@@LetsFixITJoe yeah you are 💯percent correct but the problem is that not everyone has the perfect windows and that not everyone knows that AN EXHAUST IS REQUIRED TO AFFECT ROOM TEMPERATURE 🙃🙂🙂
@@RaniRani-zt2tr its not about the perfect wiindow...jsut told you that there are a hughe differences in windows internationally...and its up to you to find the best solutions for that :)
any child knows about the need of a exhaust ;)
by the way, if you have a solution there was never a "problem"
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.
Jamal Aldeen it doesn't work.
why bother to make this if you dont show us the output of the box. Temps power used etc.
with those peltiers about 200w
The original version placing in window seems to be here
ua-cam.com/video/B-rNesTTm_U/v-deo.html
Peppa pig
Yea he doesnt even prove it works as an air con... i wouldnt even bother trying to make this without any proof it works... so pretty wasted video
I will give it credit though after watching this and several other videos on attempts to make one of these i have come up with what i believe to be an optimal and effective design for a desktop aircon using the peltier modules....
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.
You are A Perfect Teacher
👌👌
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.
To make it work effectively, the hot side of the peltier should be outside the room...else there's no use of this cooler..
Fact bro
@@bijukurian7 we could stick it halfway out the window like the old coolers. Me and my friends are looking to build this for the summer.
Correct. The fans need to be virtually in contact with the heatsink fins (CPU coolers are OK,) to force as much air as possible thru the fins, and in contact with the grill so there's no recirculation of air for either heating or cooling spaces. Also, bolts etc passing from the hot space to the cold should ideally have thermal insulating washers between them and at least one of the heatsinks (a washer with a hollow collar, like transistors use) or should be non-metallic bolts. This especially applies to the 2 bolts fixing the heatsinks to each other! They are a direct thermally conductive path from the hottest point of the hot side to the coldest point on the cold side, and form a perfect heat shunt in this design!
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.
An amazing concept, however, unfortunately the most inefficient air conditioner in the world lol
Also, he leave the fans on cooler side taking air from out of the heatsink, no sense, he will take air from out of box directly to fans, without going through the heatsink first. He had two options, or put the fans directly on the heatsink, so that the fans could only grab air from the heatsink, or the second option was to put a cap around the heatsink to force the air to go through the heatsink first before pass to the fans.
It is also very inefficient, you cannot cool a room with it, although you could make a smaller version with one or two peltiers to keep temperatures inside a computer case low if you have a very high ambient temperature. or even on an electric control board
]]])
@@Sukhoi47Berkut1 ll)))))
But no noisy compressor though!! lol
@@Sukhoi47Berkut1 hi sir. And it can be connected to a 12v supply?
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
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 💡🛠
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!
Appreciate your efforts , nice video . Hey can you tell me what is the temperature at the cooler and what is at the hotter part
Hahaha.. same doubt
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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
I bet this tech will get more efficient over the years and will replace current gas systems
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.
Was thinking the same.....😋😋
peltier = 400w, (100 btus + -) 24h/D = 9.6kw
air conditioner 7500 btus 900w 10h/D = 9 kw
Very inefficent
xD
Why is that inefficient? In 10hrs per day of using AC you would consume 9kW while in 10hrs of using this diy peltier AC you could only consume 4kW..
cooling capacity is low compare to ac
10h of peltier cools way less than 10h of AC, look at the btus
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 could use a split adaption to vent heat side out and cold side in separate
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.
Will work great in my crane at work that doesn't have a/c and only crappy little windows. Thanks for idea.
congrats, you built a heater ;)
OK. Measurements? Results?Effectiveness? Tempreature? What are you doing with the moisturisation?
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!
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
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
This is actually an electric heater....
That would depend upon the polarity of the TEC's.
@@Omastian It would depend upon whether or not you exhausted the waste heat to the outside of the room being cooled.
One side heating, another side cooling
What is the material the box is made from??
@@wishdrftr it appears to be what's sometimes referred to as alupanel which is an aluminum clad (alu) plastic sheet (usually LDPE). It's quite handy stuff.
Looked like way to much thermal compound. Thermal paste still has resistance. You should only use a thin layer.
True, he should of put the same amount as you would on a cpu.
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).
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.
Good job on making a solid state air conditioner( no compressor) ,that is awesome!
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.
You can buy PC water cooling units for around 100 dollars. They cool cpus that quite a bit of heat. Might be a cheap way to get a whole premade cooling solution.
@@pctrashtalk2069 Well, this project is way in past now lol.
@@farhankhalid5534 They live forever in UA-cam. It just showed up as video option for me. I must have watched something similar.
@@pctrashtalk2069 Thank you for your comment.🙂
Congratulations! Your system is less than 1/3rd the efficiency of a compressor/condenser evaporative system...
Except it vents into the same room...
no If you connect several of this device in cascade and put them on the maximum coe state. In theory you could get a COE over 2
@@oscarservices8035 Hey are you an engineer? I'm a product designer working on some cool things for some cool clients, let me know if we can work together?
Yet it uses no refrigerant.
@@joysoyo2416 You can have an underground home and not use refrigerant as well. This is just a massive waste of electricity.
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..🤗🤗🤗
Bro r u telling the real air conditioners removes latent heat??😂🤣
@@sanjayapanda2227
It does not remove completely but controls it by controlling humid air. And control can only be achieved by removing humid air.
While cooling load calculation we consider moisture as source of latent heat. On the basis of which we can decide how much ton of refrigerant is required.👍🏻👍🏻👍🏻👍🏻👍🏻
@@sanjayapanda2227
In the above video he is just reducing the temperature below surrounding but it does not maintains it hence it a type of cooler or chiller. I am trying to say that above project does not match with the basic definition of air conditioning it.👍🏻👍🏻👍🏻
@@sanjayapanda2227 hope so it must have helped you...👍🏻👍🏻👍🏻
I don't think I am wrong because I have rac paper on 8th of may 2019
@@alcryton6515 by d way m a thermal engineer and having 4 yrs experience on this field.
hot and cool...If you don't remove the heat, it's not much use. Good job.
Super work. but If you dont sweep the hot air out of the room, the cooling effect will be almost nil.
me parece bueno, solo te falta agregarle algun conector tipo manguera para que saques el calor hacia otro lado y no elimine el efecto
El sistema está echo para sacar una parte fuera del ambiente esta muy bien echo
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.
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.
240 watt for the 4 peltiers alone, let alone the power to run the fans, .... might as well using 300 watt real Air Conditioning
Anyways but a real ac consumes more than a thousand watts ....
Yes but a real air conditioner consume 1000w or 2000w sooo
Its very inefficient but its probably only for demo purposes
A normal air conditioner 12 btu consumes about 300w. Why should do this?
It's an interesting idea, especially as a diy teaching tool.not sure what use it could be considered efficient in; since I am not well versed in the "Peltier Thermoelectric Effect". It is interesting.
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.
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.
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. 😀
Bro it will produce more heat then cool air in same room . Let thet heat output side be out the room
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.
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.
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.
Coloque as duplas em formato sanduíche e conecte-as em série. Terá quase metade do consumo e muito mais eficiência. Nesta configuração algo em torno de 2 graus. Pode chegar a até 3 em formato sanduíche, chegando em torno de -10º
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.
Use it like aircon window type. Are you satisfide wih that?
archer anthony canete great then I need to make a 1.40x1.40 Meter (55x55 inch) big Peltier Module... that wastes so much power.
I'm sure this guy will build his own private jet
use tubing to dispatch cold air, this device should be hanging outside (nice idea) dry but kinda cool
I like it... good demonstration of the principle.
your cooling the room at the same time heating it from the back, those peltiers produce more heat than cold
Heat and cold will cancel out, ends up with power supply heat up the room.
there was no temperature checking before after?
Right
Hey inspired by many such videos I experimented with 2 peltiers on two sides of 80x80 mm piece of car radiator weighing about 78 gms.
It could lower temperature of piece by 20 °C from ambient temperature without cpu cooling fan (80 mm rated 21cfm).
But when fan was switched on, the piece quickly returned to ambient temperature despite peltiers were working.
Thus very small objects can be cooled with peltiers with direct contact without fan.
For AC for cooling room in the air perfaps 1000 peltiers together can't work and imagine the power that it will consume.
Very good way to saw the branch on which we are sitting. Already, an air conditioner with a classic refrigeration unit is not very ecological, so what about something like this with even more polluting components? It's a big big waste!
Exactly, as many have suggested, you need to vent the hot air to outside.
🐸 very disappointing vid! Not even one temperature mesurement at the of the vid 🤣very well made box for birds though✔️
Inspired by many such videos I experimented with 2 peltiers on two sides of 80x80 mm piece of car radiator weighing about 78 gms.
It could lower temperature of piece by 20 °C from ambient temperature without cpu cooling fan (80 mm rated 21cfm).
But when fan was switched on, the piece quickly returned to ambient temperature despite peltiers were working.
Thus very small objects can be cooled with peltiers with direct contact without fan.
For AC for cooling room in the air perfaps 1000 peltiers together can't work and imagine the power that it will consume.
At least he's trying do you know how Manny times it took to make the lightbulb or the airplane? You don't know how old or what resources he may or may not have, that's so narcissistic; tbh it's you that sounds like a disappointment (and this is coming from a furry lol) by downing someone like this just kuz you can and probably don't feel enough validation in your life.
By one side produce hot air, by the opposite side cold air......
Sum is equal zero......
Sum is not zero but 100's of watts of heat generated.
actually is zero plus the heat used to do the work, wich adds up to more heat
Should be titled " How to build an inefficient fan"
just a bit cooler ..
That is absolute genius, Kenh!!
Also add some details of products,
After u have done the project, show us output like temp, electric used etc.
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?🤔
The heat needs to go outside or you make only more heat in your room xD
The video title clearly says how to build an AC, that's what the video shows. What the title does not say is "how to install an AC in your wall/window" therefore this video does not show you how to install it in a wall/window.
@@AnimMouse the "ac" still has no way to vent the air. It should have a ventilation tube or something.
How to fry 4 peltiers in under 1 hour!
Your big fan i maker official
Nice room heater u got there
You not measure how much degres the result
Because it'll be disappointment.
trying adding a voice over explaining what you are doing.
He is a Chinese so you dont understand his language
@@muhammad-hassan229 no he is from Vietnam. And he Doesn't know english.
faltou mostrar com um termómetro a temperatura que essa jóia da!
May you please let me know the material used for the box? It’s fantastic. You use a cutter but seems solid
Good vid keep up ur work and keep improving it put a thermometer in front of the fans if you have one also find a way to exoust the hot air out a window or away from were u have it and the more heatsink area you have to be cooled down the better
Agree
wish we had an AC similar to a class D amp
This thing is like a class a
😂😂😂
No report on how cold it made the air, we know nothing of how good it performs. Fun to watch but not much information given at all.
As pointless as leaving your fridge door open to cool down you house. Doesn't work.
Loadinglevelone , ..and put the heat back in the house to cool it!!!
This is the best comment 👍. Summed it up in a short and simple line.
i like it, you did a very nice job
It's a heat exchanger that all hot a true vac but good work on your workmanship
When applying current to a Peltier chip, one side gets cold and the other gets hot. Good for picnic fridges. This AC is not energy efficient and the Peltier chips will deteriorate in a short time. The dissipation is lacking. You build well but study before building.
Need temperature testing
It would just show how inefficient it is
DIY Labs 😆
For sure there was some simple items on hand to show us in the video the temperatures on both sides...those were conveniently not used in the video...😰
switching in rush current on the DC side of 12v, 30A. dope idea.
Will it work
Looks Great Brother ❤️ thansk
Hey look what I made! But it didn't work so I am not sharing the result output..
Note: Requires 200A service panel at your home.
Its running off of a 30a 12vdc power supply. A desktop pc uses more power than this.
Figure out how to make a small one that can fit inside a mascot costume, cool it, while running off of a battery pack for several hours, able to change out the battery pack easily.. And you'll be saving a lot of lives of people like me who cosplay at anime conventions.
Wow. Just wow
You should make water cooling for the hot side of the video, cause it also affect the temperature of the peltier in the cool side, i like your vid, keep it up
Using several of these units, say in the roof, and directing the flow through the roof, while breeze refrigerates the hot side, could become very efficient if solar power is used. After all, you need the air conditioning mostly when sun is hitting hard, isn´t it?
Efficiency = 0, and more heat in the room because you have the power supply 😊, you need to extract the heat out of the house!
I was thinking he could put the power supply on the back of it, near the hot side.