A hollow tube having an inside diameter of 2 5 cm and a wall thickness of 0 4 mm is exposed to an environment at h 100 W m2 C and T 40C What heat generation rate in the tube will produce a maximum tube temperature of 250C for k 24 W m C ...

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A hollow tube having an inside diameter of 2.5 cm and a wall thickness of 0.4 mm

Question:

A hollow tube having an inside diameter of 2.5 cm and a wall thickness of 0.4 mm is exposed to an environment at h = 100 W/m2 · ºC and T∞ = 40ºC. What heat-generation rate in the tube will produce a maximum tube temperature of 250ºC for k = 24 W/m ∙ ºC?