Second law comparison of single effect and double effect vapour absorption refrigeration systems
作者： Rabah Gomri
DOI: 10.1016/J.ENCONMAN.2009.01.019
关键词: Single effect 、 Thermal 、 Exergy 、 Lithium bromide 、 Condenser (heat transfer) 、 Refrigeration 、 Absorption refrigerator 、 Chemistry 、 Evaporator 、 Thermodynamics
摘要: Abstract In this paper a comparative study between single effect and double absorption refrigeration systems with identical cold output is carried out. Simulation results were used to the influence of various operating parameters on performance coefficient, thermal loads components, exergetic efficiency (rational efficiency) total change in exergy two systems. It concluded that COP system approximately twice but increase slightly compared system. found for each condenser evaporator temperature, there an optimum generator temperature where minimum. At point become maximum. when evaporation varied from 4 °C 10 °C, absorber temperatures are 33 °C 39 °C (HPG) 60 °C 190 °C maximum values range 0.73–0.79 1.22–1.42. The 12.5–23.2% 14.3–25.1%.
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