Some Aspects of Plate Fin-and-Tube Heat Exchangers: With and Without Louvers

摘要

The paper presents the results of an experimental study on the air-side performance for two-specific louver fin patterns and their plain fin counterpart. The corresponding longitudinal tube pitches for the test samples were 19.05 and 22 mm, and the nominal tube diamter for the test samples is 9.52 mm. For plain fin pattern, the effect of lingitudinal tube pitch on the air-side performance is negligible whereas the ehat transfer performance increases with decrease of fin pitch. For plain fin pattern, the effect of longitudinal tube pitch on the air-side performance is neglighible whereas the heat trnasfer performance increases with decrease for fin pitch.