Heat Transfer Homework (Typed Version)
Given:
Ambient temperature T∞ = 15°C
Air velocity V = 40 (units unclear)
Tube diameter D = 2
Length L = 0.4 m
Heat Transfer Equation:
q = hA(Ts - T∞)
Results:
Power loss ≈ 7638 W
Surface temperature Ts ≈ 102.5°C
Second Problem (Electronics Cooling):
Radiation equation used:
q = σ ε A (Ts^4 - T∞^4)
Estimated temperature Ts ≈ 337.5 K
Power per chip ≈ 0.065 W
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