[Gasification] electromagnetic radiation

[Gust Steven]

 Jeff
You can think of the floor as a black body putting out inrared
electromagnetic radiation. Think of the insulation as a barrier. It does
not absorb but reflects back into the floor. On the other side, you have
air, where the IR or heat waves are dissipated. 

Insulators are materials that do not conduct. 

This is on the macroscopic level. On the micrsopic, the explanation
becomes even more interesting!

Steven

->-----Original Message-----
->From: gasification-bounces at listserv.repp.org 
->[mailto:gasification-bounces at listserv.repp.org] On Behalf Of 
->Jeff Davis
->Sent: 17. elokuuta 2006 8:54
->To: gasification at listserv.repp.org
->Subject: Re: [Gasification] Fw: Biomass heated ethanol plants
->
->Thanks Daniel, Kevin and David,
->
->David wrote,
->> the value for radiation heat loss is about the same as for 
->convection, 
->> so the tin foil may reduce the overall heat loss by about 
->40% (the tin 
->> foil is not 100% effective).
->>
->> The best way to reduce both is to place the tin foil a 
->short distance 
->> radially away from the pipe, as that cuts both radiation and 
->> convection. It is not a very practical solution, though.
->
->But it is a practical aid in helping to understand the forces 
->at work. In other words a mental experiment.
->
->**********************************
->
->I have radiant floor heat and have been told that it works 
->like radio waves (kind of). Furthermore, in regards to the 
->small amount of insulation (critical radius) and radiation, 
->is it possible that this small amount of insulation acts like 
->tiny antennas helping to transmitt the radiant heat energy 
->away. I know this sounds like a STUPID QUESTION but I just 
->had to ask. 
->Heat is motion and motion is heat and IR waves are tiny, 
->tiny, tiny movements.
->
->
->Jeff
->
->
->--
->Jeff Davis
->Somewhere 20 miles south of Lake Erie, USA
->http://www.velocity.net/~jeff0124
->
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->Gasification at listserv.repp.org
->http://listserv.repp.org/mailman/listinfo/gasification_listser
->v.repp.org
->http://www.repp.org/discussiongroups/resources/gasification
->
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