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a squared box of steel has 10 cm each side, we apply 800ºC. If its emisivity is 0.60, which is the total rate of energy emission radiation?

Please detail the answer.

physics
 Jun 7, 2015

Best Answer 

 #1
avatar+33603 
+15

Total energy emission is given by:

 

$$E=A\sigma \epsilon T^4$$

 

where A is area, σ is the Stefan-Boltzmann constant ( ≈ 5.670373×10−8 W m−2 K−4), ε is the emissivity and T is the absolute temperature.

 

I'll leave you to plug in the numbers.

.

 Jun 8, 2015
 #1
avatar+33603 
+15
Best Answer

Total energy emission is given by:

 

$$E=A\sigma \epsilon T^4$$

 

where A is area, σ is the Stefan-Boltzmann constant ( ≈ 5.670373×10−8 W m−2 K−4), ε is the emissivity and T is the absolute temperature.

 

I'll leave you to plug in the numbers.

.

Alan Jun 8, 2015
 #2
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+5

Thank you, Alan. Thank you for taking the time to answer. You've helped me a lot.

 Jun 8, 2015

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