What Are The Temperature Limitations For Refrigeration Cycle (Reversed Carnot)?
Even though the reversed Carnot cycle is impossible, here it is used to show the temperature limitation of the Refrigeration cycle.
Coefficient of performance of refrigeration system that working on reversed Carnot cycle is
(COP)R =T1/(T2-T1 )
T1 = Lower temperature (temperature to be maintained in the refrigerator)
T2 = Higher temperature (temperature of cooling water/air available for heat rejection)
From above equation, the COP of refrigerator can be improved by either decreasing higher temperature T2 or by increasing lower temperature T1. Due to certain functional limitation, these temperatures cannot be varied at will. In refrigeration cycle heat is absorbed from the substance to be cooled and reject at cooling water/air. The heat transfer takes place in the right direction only when the lower temperature less than the temperature of the substance to be cooled and higher temperature is more than the temperature of cooling water.
- Coefficient of performance and relative coefficient of Performance of refrigeration cycle
- Open and Closed type of refrigeration system - advantages and application