Abstract

Numerical analysis has been carried out to investigate the fully developed flow and heat transfer characteristics of a plate heat exchanger. Multi-cell models with an inlet part and outlet part are used to perform the numerical simulation. The plate heat exchanger is characterized by a chevron angle of 20° and a P/H ratio of 2.0 4.0. The working fluid is water and the Reynolds numbers range from 300 to 1,500. The ~ correlation is given in the form of     for the friction factor and     for the Colburn factor. It is found that the fully developed flow starts from the third cell and the Nusselt number increases with decreasing P/H ratios.

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