In this study, the heat transfer and friction correlation of a single row heat exchanger with helically finned tubes are experimentally determined. The transversal tube pitch was parametrically varied. A detailed description of the test rig and the data reduction procedure is given. A thorough uncertainty analysis was performed to validate the results. The proposed heat transfer correlation can describe 95% of the data within ±11% and shows a 4.49% mean deviation. The friction correlation predicts 95% of the data within ±19% with a mean deviation of 6.84%. The new correlations show the same trend as most correlations from open literature, but none of the literature correlations are able to accurately predict the results of this study.
Issue Section:
Heat Exchangers
Keywords:
helical fin,
single row,
heat exchanger,
heat transfer,
friction,
friction,
heat exchangers,
heat transfer,
pipes
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.Copyright © 2010
by American Society of Mechanical Engineers
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