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Thermo‐economic optimization of superheating and sub‐cooling heat exchangers in vapor‐compressed refrigeration system
Author(s) -
Özkaymak Mehmet,
Kurt Huseyin,
Recebli Ziyaddin
Publication year - 2008
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.1381
Subject(s) - superheating , refrigeration , condenser (optics) , heat exchanger , evaporator , thermodynamics , refrigerant , chiller , vapor compression refrigeration , subcooling , materials science , heat transfer , nuclear engineering , engineering , physics , light source , optics
In this study, superheating and sub‐cooling heat exchangers in vapor‐compressed refrigeration system are analyzed from thermodynamics and economical (refrigeration system operation cost, investment cost) viewpoints. Using four different refrigerants (R22, R502, R134a and R404a), the temperature of condenser at the interval of (35–55°C) and temperature of evaporator at the interval of (−10 to 10°C) have been obtained from the calculation process. The second law analysis (analysis of irreversibility) of a refrigeration system is carried out and then the whole system is optimized thermo‐economically. As a result of calculations, optimum superheating and sub‐cooling temperatures of heat exchanger (superheating, sub‐cooling) areas corresponding to these temperatures are obtained. Copyright © 2007 John Wiley & Sons, Ltd.