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Hydraulic and thermal studies on a chevron type plate heat exchanger

The present work deals with the experimental study of a single pass U-type chevron plate heat exchanger using liquid-liquid combination in both the channels for the range of Reynolds numbers, 800-5900. The influence of Reynolds number, pumping power and number of plates on the hydraulic and thermal performance of PHE are presented. Results are predicted for a chevron angle of β=60o and fixed port size dp =25.4 mm for a different set of plates, namely, 15, 21 and 27 under two different conditions viz. (i) isothermal and (ii) non-isothermal. The present results of non-dimensional channel velocity and Nusselt number are compared with the analytical results of Bossiouny and Martin [3] and Nusselt number correlation of Wang and Sunden [19] respectively. At a Reynolds numbers of 3900, enhancement in Nusselt number on increasing number of plates from 15 to 21 and 21 to 27, is found to be 56% and 19% respectively. Based on experimental data, correlations for Nusselt number and friction factor are also developed.
PAPER REVISED: 2016-11-18
PAPER ACCEPTED: 2016-12-22
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