[DeTomaso] Difference between an aluminum radiator and one that is black

[Göran Malmberg]

Absorbing heat? What about a black surface in a dark room?
Goran

-----Ursprungligt meddelande-----
Från: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
För Thomas Tornblom
Skickat: den 24 juni 2009 08:16
Till: mark skwarek
Kopia: detomaso at realbig.com
Ämne: Re: [DeTomaso] Difference between an aluminum radiator and one
that is black

mark skwarek skrev:
> Has anyone studied whether there is a difference between an aluminum
radiator and one that has been blackened. I would think the black one
would reject more heat.

I believe the difference in energy radiation is insignificant between a 
black and a shiny radiator.

Energy absorption is very different though as much of the energy is 
reflected off of a shiny surface while a dull black surface absorbs lots

of energy.

I think the confusion lies in the term "Black Body Radiation", 
http://en.wikipedia.org/wiki/Black_body. The only significant factor is 
the temperature of the radiating body.

>  
> Mark
>  
>

Thomas

-- 
Real life:   Thomas Törnblom             Email:  Thomas.Tornblom at Hax.SE
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