[Amps] Black heat shields

donroden at hiwaay.net donroden at hiwaay.net
Sun Dec 19 08:04:07 PST 2010


>
>> Bare Aluminum if real can make a real good IR reflector.


http://www.engineeringtoolbox.com/emissivity-coefficients-d_447.html


Anybody ever see a polished solar hot water collector ?

Ever wondered why not ?

Don W4DNR


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