Define boot strap air evaporative system, Mechanical Engineering

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Define the following :

(a) Boot Strap Air Evaporative System

(b) Simple VCR System

(c) Advantage and disadvantage of VCR system over Air Refrigeration System

(d) Reduced Ambient Air Cooling System

(e) Define a refrigerant. Describe primary, secondary and eco-friendly refrigerants with examples. Also discuss the physical and thermodynamic properties of the following refrigerants :

R-11, R-12, R-22, R-717

(f) Illustrate with neat sketches various methods of refrigeration.


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