Homework Answers
Given data
Heat transfer coefficient h = 0.171 kW/m2-K
Area A = 1.0 m2
Outer surface temperature Tb = 300 K
Surrounding temperature Tf = 293 K
Heat transfer rate
Q = - hA(Tb - Tf)
= - (0.171 kW/m2-K) x (1.0 m2) x (300 - 293)K
= - 1.2 kW
Heat received by gear box W1 = - 60 kW
Energy balance equation
Heat transfer rate = Heat received by gearbox + power delivered by output shaft
Q = W1 + W2
-1.2 = - 60 + W2
W2 = 58.8 kW
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obtained from the...
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A) Using an energy balance determine the rate of heat transfer,
in kW.
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C) What would the entropy generation within...
Please show how the written numbers were found. No need to
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