Chemical Engineering Thermodynamics (MCQs)

A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect?

  • A. Vapor compression cycle using expansion valve
  • B. Air refrigeration cycle
  • C. Vapor compression cycle using expansion engine
  • D. Carnot refrigeration cycle
Answer: Option D.
Explanation: 
Carnot refrigeration cycle has maximum COP since carnot is an ideal cycle consisting of reversiable changes at each and every step and hence no losses.

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