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

[Torbjørn Harlem]

And black isn`t black.
Heat will be picked up in a different way as the black colour changes.

Todays  bullsh....


Torbjorn

-----Opprinnelig melding-----
Fra: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] På vegne av Thomas Tornblom
Sendt: 24. juni 2009 10:16
Til: Göran Malmberg
Kopi: 'Thomas Tornblom'; detomaso at realbig.com
Emne: Re: [DeTomaso] Difference between an aluminum radiator and one that is black

Göran Malmberg skrev:
> Absorbing heat? What about a black surface in a dark room?

Unless the room is at 0K (-273°C) the room is not strictly speaking dark ;-)

> Goran

Thomas

> 
> -----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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              S - 754 40 Uppsala, Sweden  Cellular: +46 70 261 1372

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