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Subject Author Date
Radiant Heat Transfer Andy Energy 04-24-2008
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Posted by Andy Energy on April 24, 2008, 11:08 am
I=92m looking for a formula to show heat transfer from one object to
another. Since my math skills are limited the formulas I=92ve found are
way too complex.

I=92m specifically looking for the amount of radiant heat transfer form
a building and what the reduction would be by adding a radiant
barrier. I know the emissivity of the material, temperature and
texture are factors (at least I think I know this).

What would be great, an explanation and a simplified formula that I
can input the emissivity and temperature and get BTU=92s per ft sq.

Thanks

Andy
Whole House Performance is the right thing to do

Posted by on April 24, 2008, 9:07 pm
On Thu, 24 Apr 2008 08:08:19 -0700 (PDT), Andy Energy

>I’m looking for a formula to show heat transfer from one object to
>another. Since my math skills are limited the formulas I’ve found are
>way too complex.
>
>I’m specifically looking for the amount of radiant heat transfer form
>a building and what the reduction would be by adding a radiant
>barrier. I know the emissivity of the material, temperature and
>texture are factors (at least I think I know this).
>
>What would be great, an explanation and a simplified formula that I
>can input the emissivity and temperature and get BTU’s per ft sq.
>
>Thanks
>
>Andy
>Whole House Performance is the right thing to do

E=MC2. YOU'RE WELCOME

Posted by geothermaljones on April 26, 2008, 5:01 pm
Ping "Nick Pine" in the Energy Efficiency news groups
He's got formulas galore & can probably help you out.
I think he's at Villanova.

You might want to look at the radiant barrier (ceramic bead) coatings &
paints.

geothermaljones


I’m looking for a formula to show heat transfer from one object to
another. Since my math skills are limited the formulas I’ve found are
way too complex.

I’m specifically looking for the amount of radiant heat transfer form
a building and what the reduction would be by adding a radiant
barrier. I know the emissivity of the material, temperature and
texture are factors (at least I think I know this).

What would be great, an explanation and a simplified formula that I
can input the emissivity and temperature and get BTU’s per ft sq.

Thanks

Andy
Whole House Performance is the right thing to do



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