Forum: Geothermal & Heat Pumps
11-10-21, 08:51 PM
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Replies: 8
Views: 9,260
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Forum: Geothermal & Heat Pumps
11-10-21, 08:44 PM
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Replies: 8
Views: 9,260
Please don't use straight Propane in an R12...
Please don't use straight Propane in an R12 system. The appropriate blend to replace R12 is about 40% R660a (iso-butane) and 60% R290 (propane).
In this chart OZ-12 is the 40/60 blend. Watch the...
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Forum: Geothermal & Heat Pumps
06-05-15, 06:57 PM
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Replies: 220
Views: 172,731
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Forum: Geothermal & Heat Pumps
06-04-15, 10:36 PM
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Replies: 220
Views: 172,731
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Forum: Geothermal & Heat Pumps
06-04-15, 06:50 AM
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Replies: 220
Views: 172,731
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Forum: Geothermal & Heat Pumps
06-03-15, 10:38 PM
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Replies: 220
Views: 172,731
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Forum: Geothermal & Heat Pumps
06-03-15, 10:14 PM
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Replies: 220
Views: 172,731
To be honest, unless the coil surrounding the...
To be honest, unless the coil surrounding the compressor is pretty much bonded to the shell it's doing almost nothing for you. Radiant heat from the shell will superheat the gas in the pipe which...
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Forum: Geothermal & Heat Pumps
06-03-15, 02:20 AM
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Replies: 220
Views: 172,731
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Forum: Forum News & Feedback
05-21-15, 12:11 AM
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Replies: 29
Views: 43,351
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Forum: Geothermal & Heat Pumps
05-11-15, 02:21 AM
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Replies: 25
Views: 22,493
Most of you have seen these before.
...
Most of you have seen these before.
http://www.fnarfbargle.com/private/120310-HX3/IMG-20120310-00025.jpg
http://www.fnarfbargle.com/private/120310-HX3/IMG-20120310-00026.jpg...
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Forum: Geothermal & Heat Pumps
05-08-15, 03:07 AM
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Replies: 25
Views: 22,493
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Forum: Geothermal & Heat Pumps
05-08-15, 02:48 AM
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Replies: 12
Views: 12,464
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Forum: Geothermal & Heat Pumps
05-06-15, 11:31 PM
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Replies: 25
Views: 22,493
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Forum: Geothermal & Heat Pumps
03-28-13, 01:09 AM
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Replies: 1,943
Views: 5,234,318
My condenser HX is rated at 25 bar. Not knowing...
My condenser HX is rated at 25 bar. Not knowing any better I originally asked for a 30 bar unit, but the supplier pointed out (A) I didn't need one, and (B) if I still wanted one it'd be nearly twice...
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Forum: Geothermal & Heat Pumps
02-27-13, 07:15 AM
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Replies: 1,943
Views: 5,234,318
Super interesting (well, I think so anyway)...
Super interesting (well, I think so anyway) article on long term corrosion of BPHX when used in an open loop geothermal application (like mine is).
http://geoheat.oit.edu/pdf/tp41.pdf
I've...
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Forum: Geothermal & Heat Pumps
02-18-13, 07:37 PM
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Replies: 6
Views: 5,897
Stainless has a _lousy_ heat transfer...
Stainless has a _lousy_ heat transfer characteristic.
Have a look at large shell & tube oil coolers or intercoolers from diesel engines. They will have the sort of characteristics you are looking...
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Forum: Geothermal & Heat Pumps
02-13-13, 06:13 PM
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Replies: 148
Views: 222,483
No, you're not. I am. I forget you guys get...
No, you're not. I am. I forget you guys get really dirty gas. Ours is about as clean as clean.
Having said that, pulling liquid and then feeding it through a couple of filter/driers would take...
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Forum: Geothermal & Heat Pumps
02-13-13, 07:46 AM
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Replies: 148
Views: 222,483
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Forum: Geothermal & Heat Pumps
02-07-13, 06:25 AM
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Replies: 57
Views: 45,068
I haven't forgotten these questions, I've just...
I haven't forgotten these questions, I've just not had time to sit down and think about how to answer them yet. All great questions, it just takes me a while to come up with a way of communicating...
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Forum: Geothermal & Heat Pumps
02-07-13, 05:10 AM
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Replies: 8
Views: 7,636
I'm not sure cool pack is much use without a...
I'm not sure cool pack is much use without a basic understanding of the vapor compression refrigeration cycle. First stop should be refrigeration 101 over at the refrigeration-engineer forums. Once...
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Forum: Geothermal & Heat Pumps
02-06-13, 05:44 AM
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Replies: 57
Views: 45,068
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Forum: Geothermal & Heat Pumps
02-05-13, 07:58 PM
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Replies: 57
Views: 45,068
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Forum: Geothermal & Heat Pumps
01-31-13, 09:18 AM
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Replies: 57
Views: 45,068
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Forum: Geothermal & Heat Pumps
01-30-13, 08:19 PM
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Replies: 57
Views: 54,376
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Forum: Geothermal & Heat Pumps
01-30-13, 06:52 PM
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Replies: 57
Views: 54,376
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