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re: building a wind turban to dissapate refrigerator heat
29 apr 2002
gigawatt wrote:
> building a wind turban to pull out refrigerator heat
i almost stopped reading here :-) "turbine" is the word you wanted, vs
the headgear. but that may not be needed. on a calm day, a simple pipe
works better. the turbine actually slows down the rising warm air.
>i thought, that when i build a new solar type home.... i would put a heat
>exhaust pipe above the fridge which would be located in an enclosed box
>like area, so that all heat could be sucked up the pipe and out of the
>house...
my fridge has a 6"x6" hot radiator near the floor, with a (100 cfm?) fan
that pushes room air through the radiator. i'd run the pipe down to funnel
that covers the exit air side of the radiator, and maybe unhook the fan.
>the 6 inch pipe would have a valve for winter use, to release the heat into
>the room... would that work?...
if the exit temp is 100 f and the 6" pipe is 16' tall and the outdoor temp
is 70 f, 16.6x0.196ft^2xsqrt(16'(100-70)) = 71 cfm, approximately...
>it would seem that the pipe, connected to a wind driven turban on the roof,
>would be a low tech, non powered, solution to remove unwanted heat, in
>a solar (pv) home...
sure. if the fridge consumes $10/mo of electricity, this could save a
third of that on the summertime ac bill, assuming a cop of 3. it could
also remove some humidity from the house, if the fridge condensate drips
on the radiator.
nick
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