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http://dx.doi.org/10.3795/KSME-B.2015.39.9.719

Experimental Study on the Airside Performance of Fin-and-Tube Heat Exchangers Having Wide Louver Fins Under Wet Conditions  

Kim, Nae-Hyun (Div. of Mechanical System Engineering, Incheon Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.39, no.9, 2015 , pp. 719-726 More about this Journal
Abstract
One method of increasing the heat-transfer rate is to increase the heat-transfer area. In this study, we test a wide louver fin-and-tube heat exchanger with $P_t/P_l$ = 1.03, and we compare the results with those of a louver fin-andtube heat exchanger with $P_t/P_l$ = 0.6. The results obtained show that the heat-transfer capacities of the wide louver samples are larger (16% in one row, 29% in two rows, and 38% in three row samples) than those of the louver samples. Considering the area ratio of 2.17, the increase in the heat-transfer capacity is somewhat small. The reason for this may be due to the smaller heat-transfer coefficient and fin efficiency of the wide louver sample. The effect of the fin pitch on the j and f factors are not profounded. The j and f factors decreased as the number of tube rows increased. We compare the data obtained with existing correlations.
Keywords
Wide Louver Fin; Airside Performance; Fin-and-Tube Heat Exchanger; Heat Transfer Coeffcient; Pressure Drop;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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