Unsteady state of heat flow occurs in
A)Flow of heat through furnace walls
B)Flow of heat through insulated pipe with constant surface temperature
C)Annealing of castings
D)Flow of heat through refrigerator walls
E)None of the above

Question

Quizplus · Accepted Answer

Unsteady state heat flow occurs when the temperature within the system changes with time, such as during the annealing of castings where the temperature distribution changes as the casting cools.

Unsteady State of Heat Flow Occurs in