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Chemistry / Re: Could a solar powered cooling system be used to collect water from the air?
« on: 16/10/2015 17:41:30 »Assume a coefficient of performance of about 2. Your 150W refrigerator can therefore shift about 300W of heat. Condensing 1 gram of water requires about 2300 joules of heat to be extracted, so you can condense 300/2300 = 0.13 gram per second. If the water content of air is about 5% you need to pass 20 x 0.13 = 2.6 gram of air per second over your condenser - about 2 liters/second. You can probably achieve this with a 2W fan, which won't impose a significant load on your power supply.
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