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Posted by on February 2, 2007, 4:13 pm
Greetings,
I grow hydroponic lettuce in a greenhouse in Missouri. The plants are
watered by a continuous stream of solution, which I also use to heat
and cool the plants instead of heating and cooling the entire
greenhouse.
As you probably realize, this still requires a lot of
electricty. What I was wondering, would it be effective to run the
solution underground (like a geosourse heat pump without an exchanger)
to aid in shedding some of the heat from the solution in the summer?
It is my
understanding, that around here, the ground stays a constant 60 F at
least four feet. Would it be effective to bury - say 300 feet at
4 feet deep to help chill the solution or possibly warm it in the
winter?
My biggest concerns are that since the temprature gradient is so
narrow that it may take a lot more buried pipe, and electricty to do
the extra pumping, and that it wouldn't be worth it. Any help anyone
could lend would be greatly appriciated.
Thanks,
Travis Kroner
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