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re: what's wrong with geothermal?
24 may 2005
steve shantz wrote:
>i have a very simple system using well water. i pump 1.5 gpm through
>an old evaporator coil from a walk-in freezer.
aluminum?
>...i get 10,000 btu / hr of cooling.
like this, with i = 10k btu/h and g = 357 btu/h-f?
1/g
55---www---83
<---i
>this could work better with an even larger heat exchanger to get a
>better delta t. would a couple of car radiators work?
like this, with 2 800 btu/h-f radiators?
1/1600
55---www---83
<---i
i = 44,800 btu/h, with more water flow: (83-55)1.5x8.33x60 = 21k btu/h max.
it helps to distinguish "geothermal" (with compressors) from simpler
groundwater cooling.
nick
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