Which refrigeration cycle has a higher efficiency?

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SUMMARY

The discussion focuses on comparing the efficiency of two refrigeration cycles, identified as 1-2-3-4 and 1'-2'-3'-4'. The first cycle operates within a lower temperature range, while the second operates at a higher temperature range. It is established that the Coefficient of Performance (C.O.P) is typically greater for cycles operating in lower temperature ranges due to reduced energy input requirements. Therefore, the cycle 1-2-3-4 is expected to exhibit higher efficiency compared to 1'-2'-3'-4'.

PREREQUISITES
  • Understanding of refrigeration cycle principles
  • Familiarity with thermodynamic concepts such as C.O.P
  • Knowledge of T-s diagrams and their interpretation
  • Basic principles of heat transfer and energy efficiency
NEXT STEPS
  • Research the impact of temperature ranges on refrigeration cycle efficiency
  • Study the principles of Coefficient of Performance (C.O.P) in detail
  • Learn about different types of refrigeration cycles, including vapor-compression and absorption cycles
  • Explore advanced thermodynamic analysis techniques for refrigeration systems
USEFUL FOR

Engineers, HVAC professionals, and students studying thermodynamics or refrigeration technology will benefit from this discussion.

Mechila
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The attached file shows a T-s diagram of a refrigeration cycle . Now let us consider 2 refrigeration cycles as shown in the diagram 1-2-3-4 and 1'-2'-3'-4'. Which one will have a greater C.O.P or greater efficiency ?

The first one (1-2-3-4) acts in a lower temperature range , whereas the 2nd one (1'-2'-3'-4') acts in a higher temperature range. Can someone provide me some hint or thought process . Is confused. Someone show me a way . Thanks in advance .
 

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Can someone please give me some insight ? I am stuck .
 

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