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IdleMind · 05-18-16, 05:49 PM

I did an experiment with materials I have. I learned that I have a lot to learn.

I acquired 2 old dehumidifiers, I took one apart to experiment with. I am saving the other to use for my finished heat pump. First I recovered the r22 into an empty propane bottle. Then I reassembled like this.

I used the Alum evap coil as the condensor. I used about 9 feet of 3/8 cu tube as the evaporator. I put each in a bucket with 4 gal of water.

I charged it with propane and it did not work so good. It appears to me that the evaporator did not have nearly enough capacity. It got cold, but so did the compressor, there must have been liquid getting back to the compressor and vaporizing in the compressor.

So for now I am giving up on using a bucket of water as a heat source. Next I will set up a finned evaporator with a fan to see if I can get that to work.

I didn't take good data because I could see I was way off. When I get better results I will post data.

05-18-16, 05:49 PM	#10
IdleMind Helper EcoRenovator Join Date: May 2016 Location: SE Wisconsin Posts: 55 Thanks: 3 Thanked 14 Times in 10 Posts	I did an experiment with materials I have. I learned that I have a lot to learn. I acquired 2 old dehumidifiers, I took one apart to experiment with. I am saving the other to use for my finished heat pump. First I recovered the r22 into an empty propane bottle. Then I reassembled like this. I used the Alum evap coil as the condensor. I used about 9 feet of 3/8 cu tube as the evaporator. I put each in a bucket with 4 gal of water. I charged it with propane and it did not work so good. It appears to me that the evaporator did not have nearly enough capacity. It got cold, but so did the compressor, there must have been liquid getting back to the compressor and vaporizing in the compressor. So for now I am giving up on using a bucket of water as a heat source. Next I will set up a finned evaporator with a fan to see if I can get that to work. I didn't take good data because I could see I was way off. When I get better results I will post data.