How to make AC - Smart Air Conditioner at Home

How to make AC - Smart Air Conditioner at Home

You Need:
thermoelectric peltier
heat sink
heat sink paste
12V Cooler (5 pics)
pvc board
gule
12v 30a adaptor
wire
3 pin switch

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1.
Song: Acn8 - Phases
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2.
Song: Waesto - Waiting
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[rubenoconnor]

Unfortunately no. If you understood basic thermodynamics you would know that this type of setup (in this configuration at least) cant do anything apart from increase your energy bill. The reason this doesn’t work comes in with the way the heat exchange is set up. As we know, Peltier modules or Thermo electric devices, produce a cooling and heating effect on both sides. Which side gets hot and which side gets cool depends on the direction of the current AKA electron flow. Taking this into consideration, the whole reason AC works is because of the way temperature works. Temperature in itself is defined by the average of kinetic energies across all particles in a given amount of matter. So when we cool a room using AC what we are really doing is removing that kinetic energy from the matter present in the room (i.e. molecules in the air) and 'placing' it elsewhere, we do this using methods of thermal exchange. In this case heatsinks and rotating fans. So for AC (in simple terms) we need two main things. Something that provides a thermal flux, that is a flow in thermal energy. AND something to make the heat exchanges efficient so that we may move this heat elsewhere i.e. OUTSIDE of the room we are trying to cool. With a system like this, our component producing the thermal 'flux' is the Peltier module but in a more common device might be a compressor system. In a compressor system we use a closed loop refrigeration system (this is important) and we alter the pressure that a refrigerant is under. Because of the way the ideal gas law works, when we keep volume fixed (closed system), and pressure is increased (with a compressor for example) temperature must also increase in a fashion that is proportional to the increase in pressure. So, by lowering the pressure in one side of a closed loop, temp of the refrigerant drops and therefore absorbs heat from the surrounding air (via heat exchange methods - heatsinks and fans) and increasing the pressure on the other side, there will be a natural thermal flux between the two sides. The hot side of the AC will warm up as the cool side cools the room, as you may know energy can not be destroyed or created, it can only be moved and change in physical form. Due to this law your set up will not work in this layout. While you don’t use a compressor in your build the same logic applies. Our intention is to move the heat or kinetic energy out of the room but with your design the heat has nowhere to go. On both sides of your Peltier modules you have fans and heatsinks this is correct, but to truly cool the room we must move the heat elsewhere i.e. outdoors so it is not radiated back into the room (which is what happens with your setup). Now, another thing to consider is that no device in this world is 100% efficient so your Peltier modules may be 90% efficient at best and also resistance in wires results in further heat radiation. This means you aren’t even breaking even on your heating vs cooling power. This means as a NET total you will actually heat the room up as you are feeding electricity into a system with nowhere for the heat to go apart from back into the room you are trying to cool.

ps.

Ideal gas law:

Pressure and volume of a given mass of gas at a constant temperature can be given by: P 1 × V 1 = P 2 × V 2

AND If you want to make this design in a way that actually cools the room then simply add a heat removal system. Basically the heatsink for the hot side should have a coolant flowing over it and then the now heated coolant should run to a radiator (with fans for higher efficiency) to a place you don’t mind heating up. This could be another room indoors but any sane person would put this outdoors, it just makes sense. I think a more accessible way to do this would to be to use a AIO liquid cpu cooler. By simply cutting the tubes that run from the radiator to the cpu block and adding a few more meters of tubing (and topping up the coolant after resealing the tubes) this i think would work pretty well as a heat exchange method. Another thing to note is that for this to be truly efficient, you should be using much finer heatsinks. Basically you want as much surface area to volume ratio to maximise heat transfer from the air to the cold side of the Peltier. I mean you could also probably use a cpu AIO cooler for this aswell.

pps.

Hope this makes sense! Don’t be fooled by these awfully seductive physics scams!

[gurkan]

this is why we have units, measurements, it may cool its interiors but will never be enough for a room or even 1m2

[mametzop]

Creative,
you can use the hot side to make a water heater.. using a peltier water block and a circulation pump.
use enough water reservoir to retain heat. that way the hot side doesn't affect the room...

[nginuur]

This does not work. It produces more heat than cooling. Temp shows cooling at the heatsink, the air blowing through it will still be ambient. Peltier units are only efficient in small foam enclosed boxes for cooling.

[belajarilmu]

Bagian buangan hawa panasnya harus diarahkan lagi ke luar ruangan brow, ke bagian luar tembok dan disedot atau dibuang lagi dengan kipas yang lebih besar. Kalo nggak, hawa panasnya juga menyebar ke dalam.

[anshadmulavoor]

Wt about hot air.. it will also flow in the same room ..right, ?

[alexdmon]

Why is the cell on the cold side small? They cannot both be equally large so that by being able to reverse the polarity of the Peltier cell Can it heat and cool?

[SMOTRYSYDA]

💪 good, only your work deserve like!!

[Morteza-wz]

It was a creative idea
But I wish you could cover the blower fan like a box to prevent the wind pressure of the blower fans from being wasted around and experience more wind pressure.

[asepwandi]

Anda sangat keren banget.. dan kreatif 👍👍👍

[hichamdoui-ycvy]

ترجمة نص باستخدام الكاميرا

Where can I find the refrigerated plates please

[justanerdywoman]

I hate to say it, but it isn't an air conditioner. What you're seeing is simply a simple fan. An air conditioner, unlike a fan, is a complicated mechanical device. The fundamental purpose of an air conditioner is to convert heat to cool air. It works by absorbing heat and then releasing it outdoors, which cools the inside air. This conversion method employs refrigeration cycles and heat exchange devices. Essentially, it converts hot air into cool air to keep the temperature tolerable. It may also reverse the process to create heat, making it suitable for all seasons. Heat exhaustion and chilly generation are important elements in its operation. So it's much more than merely blowing air, like a normal fan would do.

[opalomahoe]

Üdv uram azért kíváncsi lennék hány fokot fúj ki magából ha elé teszel egy hőmérőt

[cristianpal]

Yeah that’s true all the hot air remains in the room😅

[ando]

i think acrilic better, and 8 peltier fan big, difuser water coler for spray ice water

[FrankG]

Creo le faltaron ventiladores por la parte de atrás y un tubo para que salga el calor afuera de la casa porque si no pues lo que genera de frio tan bien lo genera de calor por atrás 😋

[qaazee]

The blue LED is the coolest part of the AC cause rest is all gimmicky

[ToyMarston]

Some RVs have compressor free 3way absorption refrigerator that could use induction as heat source, very efficient, ain't none on market yet, maybe in future, this is the way

[asdfkh]

I need this type of Ac how much price ? how to book

[marcoduarte]

Pra resfriar o ambiente o ar quente tem que ser jogado para fora