1529Views3Replies

Author Options:

Solar panel design: Optimal thickness and air-tight or vented? Answered

Is it better to minimize airspace inside a home made solar panel, and should the panel be air-tight, or have ventilation holes? I'm trying 1/4" depth from the cells to the Lexan cover. It will be used in a climate that ranges from +35C in summer to -35C in winter.

3 Replies

user
frollardBest Answer (author)2009-06-09

You want it to stay as cool and clean as possible cells are more efficient when they dont heat up too much. Most I see are covered and sealed to prevent contamination (water, visual, etc)

Select as Best AnswerUndo Best Answer

user
NobodyInParticular (author)2009-06-09

When you say 'solar panel', do you mean a solar thermal collector or a photovoltaic module?

(Frollard's advice was referring to the latter.)

Select as Best AnswerUndo Best Answer

user

AHA - indeed. Good thought - silicon pv cells need to be sealed... thermal collectors should be sealed with a heat-reflective material (glass not plastic)

Select as Best AnswerUndo Best Answer