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Question in (Conduction ) A steel plate 2 cm thick

  • Thread starter manal950
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Hi

A steel plate 2 cm thick is maintained at a temperature of 550 C at one face and 50 C on the other .
The thermal conductivity of stainless stress at 300 C is 19.1 W/mK .

Compute the heat transferred through the material per unit length ?

Answer : -

we have q = - k . A . (dt/dx)

now
q = - k . (l.h) . (dt/dx)

q / (l.h) = -k( (dt/dx) )
= 477.5 w/m^2
 
19,360
3,842
There is something wrong with the problem statement. It should be "per unit area". Also, it looks like the answer is off by a factor of 1000.
 

haruspex

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Pls explains your variables in the context of the problem.
 

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