Analysis of wet surface finned-tube evaporator of an air source heat pump.

Title
Analysis of wet surface finned-tube evaporator of an air source heat pump.
Authors
백영진장영수김영일
Keywords
heat and mass transfer; finned-tube; evaporator; wet surface; heat pump
Issue Date
2002-12
Publisher
International Journal of Air-Conditioning and Refrigeration
Citation
VOL 10, NO 4, 211-219
Abstract
In this study, in-situ performance test of a wet surface finned-tube evaporator of an air source heat pump which has a rating capacity of 20 RT is carried out. Since test conditions, such as indoor and outdoor air conditions cannot be controlled to satify the standard test conditions, experiments are done with the inlet air conditions as they exist. From the experimental data, air side heat and mass transfer coefficients were calculated by the well known heat and mass transfer analogy and tube-by-tube method. Since current procedure underpredicted the experimental sensible heat factor(SHF), a proper empirical parameter was introduced to predict the experimental data with satisfactory results. This study provides the method of evaluating the heat and mass transfer coefficients of a wet surface finned-tube evaporator of which in-situ performance test is necessary.
URI
http://pubs.kist.re.kr/handle/201004/23510
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