1. Define the Fourier law of conduction.
2. Explain how heat is transferred in case of conduction, convection, and radiation.
3. Explain the differences between the heat transfer coefficient and the overall heat transfer coefficient.
4. Define steady state, unstable state, and transient heat transfer status.
5. Define Newton's Law of Cooling.
6. What are the fins and how are they classified?
7. Give an example for fins in the engineering application.
8. Define the coefficient of convective heat transfer
9.List assumptions made for composite walls.
10.Define the thermal conductivity of the material. Which material has the highest and lowest thermal conductivity?
11. Explain the concept of boundary layer in the heat transfer mechanism
12.Define and classify heat exchangers
13.Why the logarithmic temperature difference is considered in the calculation of the heat exchanger.
14.Difference between AMTD and LMTD?
15. Explain NTU in heat exchangers.
16.In the heat exchangers, is the heat transfer more in parallel flow or counter flow heat exchanger, justify?
17.Difference between forced and natural convection.
18. Is the heat transfer rate more in forced convection or natural convection, to justify?
19. Explain the meaning of Grashoff's number, Prandt's number and Reynold's nude
Mber in convection heat transfer.
20.Define Efficiency and End-Efficiency.