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Optimization of the Channel of a Plate Heat Exchanger wits Ribs  

이관수 (한양대학교 기계공학부)
양동근 (한양대학교 대학원)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.14, no.3, 2002 , pp. 199-205 More about this Journal
Abstract
In this paper, the optimum shape and arrangement of ribs in the channel of a plate heat exchanger are studied. The following dimensionless geometric parameters of ribs are selected as design variables: rib height ($H_R$), angle of attack ($\beta$), rib pitch ($P_R$), rib distance (L) and aspect ratio of rib (AR). The optimization is performed by minimizing the objective function consisting of the Nusselt number and the friction factor. The optimal values of design variables are as follows: $H_R$=0.263, $\beta$=0.290, $P_R$=3.142, L: 3.954, AR=0.342. The pressure drop and the heat transfer of the optimum model, compared to those of the reference model, are increased by 15.1% and 41.6%, respectively.
Keywords
Plate heat exchanger; Rib; Periodic fully developed flow; Angle of attack; Optimization;
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