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Influence of air-flow imbalance and refrigerant flow path pattern on an evaporator's performance

✍ Scribed by Kunihiko Kaga; Satoru Kotoh; Teturo Ogushi; Hideo Yoshida

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
1004 KB
Volume
38
Category
Article
ISSN
1099-2871

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✦ Synopsis

Abstract

This paper presents the influence of air flow imbalance on performance of an evaporator and the effect of the refrigerant flow path pattern. To estimate the influence, we applied a thermal network method that takes refrigerant quality distribution in the heat exchanger into account. The prediction shows that performance of the evaporator falls by 6% with a 40% imbalance of air flow rate for a simple 2 rows and 2 paths heat exchanger. Also, the prediction shows that the performance level will be recovered to when the air flow distribution is uniform by optimizing refrigerant flow path pattern. Β© 2009 Wiley Periodicals, Inc. Heat Trans Asian Res; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20260

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