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re: reflectors/solar cells
30 jan 2002
n. thornton wrote:
>glass mirror costs too much, mylar doesnt last long, i would lean
>towards very thin stainless steel, thin enough to bend with bare hands
>and cut with tinsnips.
have you priced ss? seems to me that mylar would last at least 5 years
if the metallic layer is greased to some poly film, and it reflects
downwards, which also facilitates cooling the cells in a water bath.
>it is the back of the cells that need cooling, the black silicon, not
>the glass front...
i'm pretty sure the thermal conductance from back to front is sufficiently
large that cooling the front will work fine for a few suns.
nick
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