Question

A hot metallic closed cylindrical tumbler of inner radius 12 cm and wall thickness 18 mm is suddenly dipped into an oil bath of temperature 32 °C.
The tumbler has an internal heating element which gives it's inner wall a constant and uniform heat flux of 95000 W/m?. The wall temperature (no
temperature gradient within the wall) reaches a value of 134 °C upon reaching steady state. Evaluate the convective heat transfer coefficient
W/m?.K) on the outer surface of the tumbler.
heat transfer coefficient:

Answer 1

Answer:

Explanation:

A hot metallic closed cylindrical tumbler of inner radius 12 cm and wall thickness 18 mm is suddenly dipped into an oil bath of temperature 32 °C.