How To Make A Freezing AC From Peltier For Both Room And Car | DIY Air Conditioner

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How To Make A Portable Freezing Air Conditioner From Peltier For Both Room And Car | DIY Air Conditioner For Summer At Home.

In this video, I will show you how to use Peltier to make a portable air conditioner. This idea comes from my real needs. My car has three rows of seats, but there are no air conditioning vents in the back two rows, so it is hotter than the first row, especially the third row. So I plan to DIY a portable air conditioner. It can be used for both my car and my bedroom.
To make the air conditioner more retro, I used wooden boards to make the case. Peltier is used for refrigeration, and the water tank is used for heat dissipation. At the same time, I use a temperature control switch to automatically control the start and stop of the refrigeration unit, achieving a constant temperature effect. Moreover, the wind speed can also be adjusted. For better aesthetics, I also added some LED lights.

0:00 Test AC both in room and car
0:22 Front control panel
1:07 Air outlet
1:35 Side panel
1:53 Assembling the casing
2:29 Refrigeration system - Peltier
2:53 Cooling System - water
3:58 LED indicator light
4:20 Install refrigeration system
5:10 Control system
6:33 Water Pump
7:21 Circuit diagram
7:24 Rear cover
7:51 Polish with wax
8:00 Test AC both in room and car

I hope you will enjoy the video, back again next week!
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Musics：

Licensed under Creative Commons: By Attribution 4.0 License

Funny Bubbles - Happy Classical Music

Cozy Place - Chill Background Music

New Day's Hope - Energy Upbeat Background Music

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@BillMingLabs： I will show you science experiments and inventions every week.
Do not forget to always be curious, energetic and creative in life:）

[BillMingLabs]

Thank you for watching😀. More DIY videos:
👉DIY The World's Smallest Water Pump
👉How To Make A Water Cooler From Peltier
👉How To Make Bluetooth Speaker With Coconut

[Dann.y]

You're so underrated! I also really appreciate any youtube challnnel who replies to every comment in their videos so thanks for that!

[resist_or_die]

Guys come on, the heat from the space + the heat from the internal resistance of the peltier = more heat than you started with. It has to go somewhere outside the space. As you can see now the water will just get hotter until it freakin boils. I'll explain the math. A common 12706 TEC is about 70% efficient under normal conditions and may draw 6A at 12VDC so that's 72W of power with 21.6W as excess waste heat (x 3) plus a human occupant will generate another 100W or so, and heat from the power supply, pump, and fans. You're now trying to pump about 170W of heat through modules that can move 150W of heat into the water and it has nowhere to go then anyway. The issue here is clear then, you're generating heat, not cooling. Even if you could dump the heat outside and have constant fresh water you still have a net loss and we haven't even accounted for trapped infrared from the sun, heating through reradiation from the vehicle body, or anything else. It simply cannot work this way. The front side of the Peltier assembly will get cold, sure, but the space will not. It takes ~184Wh of power to boil 2L of water from room temp (not a hot car even) so you would be failing to cool the space and boiling your reservoir in just over an hour. If you're a math denier, prove it yourself, but these aren't used commercially in this configuration because physics. If you upgrade to 12715 or something you still have poor efficiency and even more waste heat from power supply and resistance, you just get a colder cold side which obviously doesn't matter. Still a cool build though.

[MisterIkkus]

That tiny table saw is the cutest thing I've ever seen.

[howtobuild]

Smart idea using the water to cool down the peltier!

[muhammadali]

Finally someone who did what I was thinking, THANKYOU for making this video with this awesome Air Conditioner 👌👍.

[teksheng]

Thanks for sharing.
I have some questions hoping you could advice,
1. how do you design/decide on how big is the reservoir to cater to 3 peltier?
2. The reservoir in your video, how long can it last before you need to change the water?
3. Normally at what temperature you change the water?

Just an idea maybe some improvement could be done is to have a probe installed in the reservoir to monitor on the temp?

This is a very good idea though on improving AC in campervan without needing to open an vent hole.


Great work!😀

[praetorin]

I'm so annoyed at how much work you put into the build and then had the most god awful screws that didn't go in straight or look right. =(

[Lamimsaad]

SO UNDERRATED EVEN THOUGH I WOULD PROB NKT MWKE THESE IT FUN TO WATCH! WISH U GOOD LUCK🎉

[redimemes]

I bet this will take a lots of current and and enough cool 😌

[mark]

This is a great idea, thank you for sharing this idea with the world, just curious, what size water pump did you use? I think a smaller water pump that uses very little watts would suffice, I've seen aquarium water pumps that say "160 GPH at 10 watts"

[parcival_vt]

Does it really chill the car? im looking for doing something like that for cooling my car since it dosnt have Ac, does it really cool down ?

[carviaso]

Can you share the parts list?, if has the link to amazon can share?🤔

[sunner]

once the water gets hot the cooling capability must go down, right?

[dimcadallapeorgantonea]

Can two of these coold down a car?
I don't have ac in a car and I need something like this.

[mikoharoldamarante]

Hello can you give me the list of all the specific components that are used in this video? Thank you in advance

[calvinandhobbies]

Very nicely built. How much power is consumed while running?

[anasqai]

Why if switch "on", the temperature keeps getting higher? About temperature maintainence by voltage fixation to send then it auto-off, until some time to on again, to maintain the temperature?

[shaikaijaz]

Finally you got new subscriber 🎉
Dear can you sale it? I want to purchase it? I like it

[suryapatnaik]

How to distinguish hot and cold side of pietler cooler module?