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Forum: Geothermal & Heat Pumps

11-25-15, 08:22 PM

Replies: 1,943

The Homemade Heat Pump Manifesto

Views: 4,673,858

Posted By AC_Hacker

Len, Here's a nifty graph regarding...

Len,

Here's a nifty graph regarding turbulence & thermal transfer:

https://4.bp.blogspot.com/-Sltzok3CZlA/UOD3Po_7BxI/AAAAAAAAAMg/uG4t48ty2FY/s1600/conv_heat.gif

...and here is the text to...

Forum: Geothermal & Heat Pumps

11-25-15, 01:25 PM

Replies: 1,943

The Homemade Heat Pump Manifesto

Views: 4,673,858

Posted By stevehull

Len, 15 gpm is a lot of water to move...

Len,

15 gpm is a lot of water to move through the pipe. Did you check Reynold's number to see if you are approaching turbulence? You will not in the parallel loops, but you may well be in the...

Forum: Geothermal & Heat Pumps

11-24-15, 09:03 AM

Replies: 21

15000 BTU Window A/C heat pump conversion

Views: 21,085

Posted By jeff5may

Stuff used so far: ...

Stuff used so far:

http://www.homedepot.com/catalog/productImages/300/11/117167db-fd5c-4c7c-a041-86d1407af354_300.jpg
RIDGID 101 Tubing Cutter-40617 - The Home Depot...

Forum: Geothermal & Heat Pumps

11-21-15, 11:01 AM

Replies: 7

linear tube in tube HE

Views: 5,517

Posted By mejunkhound

linear tube in tube HE

Cannot recall which thread I was going to put this in, so will post as a general thread.

Rather than a coil, my 5 T water to R22 (or R290) evaporator is simply tying a bunch of coaxial pipe...

Forum: Geothermal & Heat Pumps

11-19-15, 04:37 PM

Replies: 218

DX Geothermal Pond 4 ton Heat Pump

Views: 116,520

Posted By MEMPHIS91

That makes sense, and that was the idea to pipe...

That makes sense, and that was the idea to pipe it back to the pond, but to have to solenoid open after each run to let the pipe drain so it won't freeze. Then the valve would close and the pump...

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