Effects of Chevron Angle on Thermal Performance of Corrugated Plate Heat Exchanger

Abstract

There are two types of plate heat exchangers;one of which is the plate and frame heat exchanger developed in the 1930s for food industries because of easy cleaning and quality control; while the other is the brazed plate heat exchanger that usually allows higher pressures and temperatures. This paper presents a study on chevron angle effects. Here, thermal-hydraulic performances are evaluated in terms of the heat transfer coefficient, friction factor and pressure drop. Results denote that friction factor will rise with the growing chevron angle. On the other hands, when the chevron angle has a optimal value, the results demonstrate that friction factor has inverse relationship with mass flow rate for both Laminar and Turbulent regime . Eventually, it is indicated that the optimal chevron angle is 60  .