Reversed Carnot Cycle: Explained for Refrigerators

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SUMMARY

The reversed Carnot cycle is a thermodynamic process utilized in refrigerators, where the working substance undergoes adiabatic compression, increasing its temperature, followed by isothermal compression, during which heat is expelled to the sink. The confusion arises from the terminology used; the working substance absorbs heat from the low-temperature reservoir during the evaporation phase, not the sink. This cycle effectively transfers heat from a cooler area to a warmer area, demonstrating the principles of thermodynamics in refrigeration systems.

PREREQUISITES
  • Understanding of thermodynamic cycles
  • Familiarity with the Carnot theorem
  • Knowledge of refrigeration principles
  • Basic concepts of heat transfer
NEXT STEPS
  • Study the principles of the Carnot cycle in detail
  • Learn about the refrigeration cycle and its components
  • Explore the concept of heat pumps and their applications
  • Investigate the second law of thermodynamics and its implications
USEFUL FOR

Students of thermodynamics, engineers in HVAC systems, and anyone interested in understanding refrigeration technology and its underlying principles.

avistein
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What happens in a reversed carnot cycle? I mean in refrigerators.The gas is adiabatically compressed so that it's temperature rises.Then it is isothermally compressed so that the heat is rejected to the sink.But then why it is said everywhere that the working substance absorbs heat from sink? Please explain me the full procedure.I am confused here.
 
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where is everywhere?
 
avistein said:
Then it is isothermally compressed so that the heat is rejected to the sink.But then why it is said everywhere that the working substance absorbs heat from sink? Please explain me the full procedure.I am confused here.
Both of those are wrong, so please post an example of the "everywhere" where you got that.
 

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