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Effect of Airflow Nonuniformity of Room Air Conditioner Performance

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PDF TR120.pdf (5MB) ACRC Technical Report 120 PDF
Title: Effect of Airflow Nonuniformity of Room Air Conditioner Performance
Author(s): Kirby, E.S.; Bullard, C.W.; Dunn, W.E.
Subject(s): stationary air conditioning system analysis
Abstract: A 1.5 ton window air conditioner was extensively instrumented and tested over a wide range of wet- and dry-coil operating conditions. The results were used to improve a steady-state simulation model. Published air- and refrigerant-side heat transfer correlations were found to characterize wavy-fin evaporator and louvered-fin condenser performance quite well. Condensate removal was predicted reasonably well, and 55% of its latent heat was recovered by spraying onto the condenser. Evaporator and condenser face velocity nonuniformities found to range over a factor of three. A second set of tests conducted in a wind tunnel, using an identical evaporator, showed that the heat transfer and air-side pressure drop penalties due to these nonuniformities were quite small.
Issue Date: 1997-07
Publisher: Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report: Air Conditioning and Refrigeration Center TR-120
Genre: Technical Report
Type: Text
Language: English
Sponsor: Air Conditioning and Refrigeration Project 69
Date Available in IDEALS: 2009-04-24
Identifier in Online Catalog: 4214205

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