An experimental comparison between LPG and engine exhaust gas as energy source for an absorption refrigeration system

José Ricardo Sodré, André Aleixo Manzela, Sérgio de Morais Hanriot*, Luben Cabezas-Gómez, Cristiana Brasil Maia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)820-828
Number of pages9
JournalInternational Journal of Energy Research
Volume36
Issue number6
DOIs
Publication statusPublished - 1 May 2012

Keywords

  • Absorption refrigeration
  • Experimental analysis
  • Unsteady behavior

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