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Colors
Posted: 12 Oct 2009, 02:46
by Shrek
I was wondering if colors could change the temperature of something?
Re: Colors
Posted: 12 Oct 2009, 03:07
by flynfrog
Shrek wrote:I was wondering if colors could change the temperature of something?
Yes they will affect the way the part receives heat mostly infrared and how it gets rid of heat through emissivity
Re: Colors
Posted: 12 Oct 2009, 12:04
by raceman
Shrek wrote:I was wondering if colors could change the temperature of something?
Yes! the colors will definitely affect the way something receives heat
White => will heat up late and will give off the heat more rapidly
Black => will heat up quickly and will give off the heat less rapidly
also, the darker the color, the late it will get heated up and dissipate the heat energy; and vice versa
Re: Colors
Posted: 12 Oct 2009, 23:54
by flynfrog
That is not completely correct black has more emissivity than say silver so it will dissipate heat faster as well
Re: Colors
Posted: 13 Oct 2009, 00:27
by rjsa
raceman wrote:Shrek wrote:I was wondering if colors could change the temperature of something?
Yes! the colors will definitely affect the way something receives heat
White => will heat up late and will give off the heat more rapidly
Black => will heat up quickly and will give off the heat less rapidly
also, the darker the color, the late it will get heated up and dissipate the heat energy; and vice versa
Wrong... Black will both capture and release heat faster thru radiation. To keep something cool you might choose white or black depending on how the heat is generated.
Car/house under the sun, being radiation the main heat source: Black paint will heat up faster and cool faster also when the heat source is removed. The Black cars heats up more.
The belly of the space shuttle is black because it receives heat from friction and dissipates thru radiation.
Air condictioning pipes are silver/white, because it will give less heat thru radiation.