A heat exchanger is a heat-transfer device that is used for the transfer of thermal energy b/w two or more fluids (gas or liquid) available at different temperatures. The primary elements of a PHE include the heat transfer plates, gaskets, the supporting end frames (a fixed and a movable cover plate or frame) that house inlet & outlet fluid port nozzle, carrying and guiding bars, the supporting column, and end-frame tightening bolts.
