Exergy Analysis and Thermodynamic Model for Reciprocating and Scroll Compressors Used in an Air Conditioning Packaged Unit | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 18, Issue 5, October 2014, Pages 165-184 | ||
| Authors | ||
| Sabah Tarik Ahmad; Wahid S. Mohammad; Louay Abd-Alazez Mahdi | ||
| Abstract | ||
| An exergical thermodynamic model was used to analyze and optimize reciprocating and scroll compressors of an air condition packaged unit. The experimental work was carried out using 3.0 TR packaged unit manufactured by Carrier Company. The experimental and the analysis show that the exergy dissipative due to friction losses in bearings, suction and discharge valves and the transformation of power are larger than the heat losses. The exergy efficiency for the compressor was varying between (60-68) %. The scroll compressor was found to be better than the reciprocating compressor at an environmental temperature of 35℃ due to its low total losses which is 10% less than the reciprocating compressor ones . The heat losses percentages were 3% for scroll and 2% for the reciprocating of the total power input. The thermodynamic model has shown to be reliable in dealing with a change in the environmental temperatures and such system components and size. | ||
| Keywords | ||
| Exergy analysis; thermodynamic model; reciprocating compressor; scroll compressor | ||
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