Which of the following is a case of steady state heat transfer?
| Which of the following is a case of steady state heat transfer?
A. I.C. engine
B. Air preheater
C. Heating of building in winter
D. None of the above
Please scroll down to see the correct answer and solution guide.
Right Answer is: D
SOLUTION
- Heat transfer is the transfer of thermal energy from a body, at a high temperature, to another at a lower temperature. This transfer of thermal energy may occur under steady or unsteady state conditions.
- Under Steady state conditions the temperature within the system does not change with time.
- Conversely, under unsteady state conditions, the temperature within the system does vary with time.
- Heat transfer in IC engine, Air preheater and Heating of building in winter is time dependent heat transfer process i.e. unsteady heat transfer
Hence option 4 is correct.