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http://dx.doi.org/10.3795/KSME-B.2006.30.8.741

Performance Analysis on a Multi-Pass Multi-Branch Heat Exchanger According to Pass Arrangement  

Kim Min-Soo (한양대학교 대학원 기계공학과)
Lee Kwan-Soo (한양대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.8, 2006 , pp. 741-748 More about this Journal
Abstract
This paper numerically investigates the effects of pass arrangement on the flow distribution characteristics and the performance of a multi-pass multi-branch heat exchanger. Four cases of pass arrangement (2, 4, 6, 8 pass) are chosen to select a proper pass arrangement. A JF factor is used as an evaluation characteristic value to consider the heat transfer and the pressure drop. The present results indicate that 4-pass heat exchanger shows the best performance, and the design parameters in 4-pass heat exchanger are optimized. The design parameters are the locations of the inlet, outlet and separator, and are optimized using a response surface methodology. The JF factor of the optimum model is increased by about 9.3%, compared to that of the reference model (2-pass heat exchanger).
Keywords
Multi-pass Multi-branch Heat Exchanger; Pass Arrangement; Flow Mal-distribution; Optimization;
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