Difference between Heat pump and Heat engine.
[5 marks]Elaborate the selection procedure of refrigerant.
[5 marks]What is the difference between primary refrigerants and secondary refrigerants?
[5 marks]Explain the properties of commonly used refrigerant.
[5 marks]Define zeroth law of thermodynamics and first law of thermodynamics with its application.
[5 marks]Comparison of various air-cooling systems used for aircraft.
[5 marks]Explain Simple air-cooling system.
[5 marks]Write a short note on Regenerative air-cooling system.
[5 marks]Define the Air refrigeration system with its Merits and Demerits.
[5 marks]Explain Multiple evaporators at different temperatures with individual compressors and individual expansion valves.
[5 marks]What are the advantages and disadvantages of compound compression refrigeration systems?
[5 marks]What are the economic factors influencing the duct layout?
[5 marks]What are the various methods for determination of duct design? Explain any one of them.
[5 marks]Explain Velocity reduction method for determination of duct design.
[5 marks]Discuss about Cryogenic refrigeration system.
[5 marks]Discuss the Cascade refrigeration systems with its application.
[5 marks]05 Discuss regarding the different material used for duct in detail.
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