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An experimental comparison between LPG and engine exhaust gas as energy source for an absorption refrigeration system
Author(s) -
Manzela André Aleixo,
de Morais Hanriot Sérgio,
CabezasGómez Luben,
Maia Cristiana Brasil,
Sodré José Ricardo
Publication year - 2012
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.1842
Subject(s) - throttle , liquefied petroleum gas , exhaust gas , refrigeration , internal combustion engine , automotive engineering , absorption refrigerator , exhaust gas recirculation , refrigerator car , environmental science , engineering , waste management , nuclear engineering , mechanical engineering
SUMMARY This paper presents an experimental analysis of an absorption refrigeration system, comparing two different energy sources. The exhaust gas from an internal combustion engine was evaluated against the original energy source, liquefied petroleum gas (LPG). The experiments were performed in a domestic refrigerator, monitoring the air temperature and humidity inside the equipment. A production engine was tested with 25% and wide‐open throttle valve (WOT), mounted on a bench dynamometer. The energy demand, cooling capacity and coefficient of performance (COP) were determined for both energy sources. The results showed that engine exhaust gas is a potential source for absorption refrigeration systems. When the engine exhaust gas was used as energy source, the energy available for the refrigerator was higher with 25% throttle valve opening. Copyright © 2011 John Wiley & Sons, Ltd.