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This Instructable will show you how to make a environmental friendly portable air conditioner. This machine uses a Peltier Module as a cooling mechan...
This is just like the everyday air conditioner that we use. The only thing unique about this that the cooling unit has no moving parts. The only movin...
This page shows you the things that you need that you need to buid this machine.
Put epoxy on both sides of the peltier module and connect the heat sinks together. Note: Copper paste would be better.
Put epoxy on the heat sinks and connect the two PC fans to the heat sinks.
Attach the wood with epoxy.
Use the tube for better ventilation.
We have a be nice comment policy. Please be positive and constructive.
not all PC power supplies can supply enough current on the 12V rail to run a peltier, most of them that I've used will shut down when confrunted with a high drain device such as the peltier.
You can use a Computer SMPS, there is absolutely no problem with that. Go ahead. (y)
mr. clean. Power supplies supply power. They are like a source. Devices pull what they need from it. so 14 A module will only pull 14 A from power supply :)
Hi, As we know peltiers are only 15 to 20% efficient as compared to A/C refrigrant gas type, but what if Peltiers are used as Heat pump inplace of compressors in A/C units. Yes they will consume more energy, but where is the problem?? We can use free energy to supply it that power. The Renewable energy source, Yes!! The sun. We can use Solar panel + invertors + Peltier TEC and can make such an assembly which can circulate water through cold and hot side of peltier. The we can run that water through Cooling coils as is done in normal AC. The more the sunlight/heat we get more will be energy produced and more heat will our TEC pump out of the room. In Areas where there is hot temperature.... This will prove very effective!!!! and you don't have to pay any electricity bill too. Just some intial investment in Solar panel, panel invertor and TEC A/C assembly. We can call it - SOLAR THERMOELECTRIC AIR CONDITIONER. :) :) :)
If you want to know how to build one!!! contact: email@example.com
Peltier have an average efficiency of 15 to 20% while standard A/C are about 60%the only advantage of one using a peltier A/C over a pump one i the reduction of moving part (thus long term reliability) and possible noise reduction caused by the pump, but they could have improved that since i still run an hold 1995 A/C :)
At least in theory it should be possible to make a heatpump power-plant. The energy is absorbed from the surroundings. The problem is to make enough heat to run a small power-plant with losses here and there, with a fairly expensive setup(compared to potential production).A heatpump regularly has a COP above 3, for heating purposes(1 part electric=3+ parts heat output, depending on outside temperature).
as a slight improvement, you should put the hot side on top. Because hot air then to rise and cold air "drop" your hot part would not have a tendency to heat up and natural convection could improve airflow.other then that, anyone have an idea were to get cheap heatsink?
It is fun to read comments from some of the users. No offence but many don't know about peltier at all. I have been playing with them for past 2 months. They catch your attention when you see them at work. First of all, do not connect peltier with a battery. It will overheat and fry. Attach a heatsink or someother mechanism like water flow to keep its hot side cold.Which one is hot side and which one is cold?The side with text written is usually the side that gets cold when current is applied.I am in China and its super easy to buy them. You will not be able to get them from local stores, try online shopping websites.All peltiers can create electricity as well if you create temperature difference between its both sides. Warm its warm side while keep cold cold.To start with them by the TEC-12706 its should be dead cheap like under 5$
5 for $10 at ebay ;-)
Any reason why there are two heatsinks at the cold side, or is it just what was available?
I have ordered a peltier element to do something similar(but to dry the air).Mounting the cold side at the top might be unvise. Reason is that the cold side will get condensation that will flow downwards and might creep into the electrics.
My plan is to mount it ideways, and thinking that at least the cold fins should face downwards. Also that there should be some kind of reservoir.
how big is this unit...once it's built? how portable is it?
your power supply indeed has a to low current. the reason its blinking is becous it shuts down do to the lack of power / starts up for a second and then shuts down again ( this is the easiest way to say it its actually more complex) thats why your fans are twitching. if you wire it in series the current is to low for your peltier do to the fans that requir less current.
I hace recently purchased TEC1 12706. Provided power input to it from a 300 W SMPS. Volatge 12 V. Room temperature was ~35 degree . Heat sink and fan applied on hotter side that of CPU hitsink and fan . When I tried to measure the DC current ... using clamlmeter it showed reading to be nearly 1.6 A for peltier . I think it should consume 6 A why it is consuming less current.
a few notes, a radiator with water on hot side would be great addition. as your design is you are blowing both hot and cold air into a room (I admit they are blowing in different directions though) with a water setup on the back you could take the heat outside and let the air blow on it to cool it down. the addition of several items like a pump will be required.
also using 2 or 3 peltiers piggy backed will be better than 1
and last but not least is you may encounter an icing issue.
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