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# ME6502 Heat and Mass Transfer Important questions

ME6502 Heat and Mass Transfer Important questions Regulation 2013 Anna University free download. Heat and Mass Transfer ME6502 Important questions pdf free download.

## Sample ME6502 Heat and Mass Transfer Important questions:

PART – A

1. What is Fourier’s Law of heat conduction?

2. What is temperature gradient?

3. What is coefficient of Thermal conductivity?

4. Give some examples of heat transfer in engineering.

6. Define Temperature field. (ME6502 Heat and Mass Transfer Important questions)

7. Define heat flux.

8. Define thermal Diffusivity.

9. What is Lap lace equation for heat flow?

10. What is Poisson’s equation for heat flow?

11. What critical radius of insulation; (ME6502 Heat and Mass Transfer Important questions)

12. Give examples for initial’&; boundary conditions.

13. What is a Fin?

14. Define efficiency of the fin.

15. Define effectiveness of the fin.

16. Give examples of use of fins in various engineering applications.

17. What is meant by Transient heat conduction? (ME6502 Heat and Mass Transfer Important questions)

18. Give governing differential equation for the one dimensional transient heat flow.

19. What is Biot number?

20. What is Newtonian heating or cooling process?

21. Give examples for Transient heat transfer.

22. What is meant by thermal resistance?

23. What is meant by periodic heat transfer?

24. What are Heisler chart? (ME6502 Heat and Mass Transfer Important questions)

25. What is the function of insulating materials?

PART – B

1. A pipe consists of 100 mm internal diameter and 8mm thickness carries steam at 170°C. The convective heat transfer coefficient on the inner surface of pipe is 75 W/m2C. The pipe is insulated by two layers of insulation. The first layer of insulation is 46 mm in thickness having thermal conductivity of 0.14 W/m°C. The second layer of insulation is also 46 mm in thickness having thermal conductivity of 0.46 W/m°C. Ambient air temperature = 33°C. The convective heat transfer coefficient from the outer surface of pipe = 12 W/m2C. Thermal conductivity of
steam pipe = 46 W/m°C. Calculate the heat loss per unit length of pipe and determine the interface temperatures. Suggest the materials used for insulation.

(ME6502 Heat and Mass Transfer Important questions)

 Subject Name Heat and Mass Transfer Subject code ME6502 Regulation 2013