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(solution) Hi, I'm in a heat transfer course and wondered could you help me


Hi, I'm in a heat transfer course and wondered could you help me with the question below:

The sun can be modeled as a sphere of radius R=695500 Km with surface T=Ts =5778 K.

Assuming that the emissivity of the solar surface is unity, estimate the total rate of heat Q (W) generated by subsurface unclear fusion in the sun, assuming all is radiated2 into the surrounding space at 4K.


Given data: Surface temperature Ts = 5778 K

 

Surrounding temperature Tsurr = 4 K

 

Radius of the sun ?r? = 695500 Km = 6.955*10^8 m

 

Emissivity =1 Now the rate of heat generated will be given as: 4...

 


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Sep 13, 2020

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