Discuss variations of following properties of material at Cryogenic temperature.
[3 marks]Fatigue strength (b) Hardness (c) Ductility
[ marks]Explain the concept of otho-hydrogen and para-hydrogen
[4 marks]Discuss the applications of cryogenics in space technology.
[7 marks]Explain magnetic properties of superconductors.
[3 marks]Explain different types of hazards and its prevention.
[4 marks]Discuss the unusual properties of liquid Helium-II.
Discuss application of cryogenics in food preservation.
[7 marks]Explain COP and FOM
[3 marks]Explain the Claude cycle with suitable diagram.
[4 marks]Enlist air separation and purification systems. Explain any one system with diagram.
[7 marks]Describe principle of liquefaction.
[3 marks]Explain inversion temperature using Joule–Thomson inversion curve.
[4 marks]With neat sketch explain mix refrigerant cascade cycle.
[7 marks]Explain in brief vacuum insulated transfer lines.
[3 marks]Explain the mechanism of insulation in (a) Opacified powder insulation
[4 marks]Evacuated powder and fibrous insulation.
[ marks]Give classification of cryogenics heat exchangers and explain plate fin type of heat exchanger in detail.
[7 marks]Explain in brief multi-layer insulation.
[3 marks]Explain different process equipment used in air separation and liquefaction plants.
[4 marks]Write a note on reciprocating expanders in details.
[7 marks]Explain about dewar used in low-temperature research laboratories.
[3 marks]Explain construction and working of turbine flow meter with figure.
[4 marks]Explain working of capacitance liquid level probe with figure.
[7 marks]Explain about storage and transfer of cryogenic fluids in industry.
[3 marks]Explain metallic resistance thermometer used for cryogenic temperature measurement.
[4 marks]Write a brief note on cryogenic flow control devices and explain any one of them.
[7 marks]