Premium
HCFC22‐based absorption cooling systems, part III: Effects of different absorbers and condenser temperatures
Author(s) -
Fatouh M.,
Murthy S. Srinivasa
Publication year - 1996
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/(sici)1099-114x(199606)20:6<483::aid-er151>3.0.co;2-t
Subject(s) - condenser (optics) , evaporator , refrigerant , thermodynamics , absorption refrigerator , materials science , water cooling , refrigeration , cooling capacity , absorption (acoustics) , working fluid , absorption of water , nuclear engineering , composite material , heat exchanger , engineering , light source , physics , optics
Generally in a vapour absorption refrigeration system (VARS) heat rejection temperatures at absorber ( T a ) and condenser ( T c ) are taken to be equal. However, different temperatures can exist when the cooling water flows in series through the two components. Under such situations, it is essential to know which of T a and T c has greater influence on the performance of the VARS. Here the influence of different T a and T c on the performance of a single‐stage VARS working with HCFC22 as a refrigerant and three organic solvents, namely DMA, DMF and DEMTEG, as absorbents is studied. Results are obtained over a wide range of operating temperatures. To improve the performance of HCFC22‐based VARS, results reveal that (i) the cooling water in parallel pipe connections should be used at low values of temperatures at evaporator, cooling water and heat source, and (ii) cooling water should first flow through condenser and then through the absorber when evaporator and heat source temperatures are high over the complete range of cooling water temperatures. COP th is more sensitive to T c than to T a .