The plate-and-frame or gasketed plate heat exchanger essentially consists of a pack of thin rectangular plates sealed around the edges by gaskets and held together in a frame ( Figure 1). There are four main types of PHE: gasketed, brazed, welded, and semi-welded. In this new scenario, the plate heat exchanger can play an important role.Ī plate heat exchanger is a compact type of heat exchanger that uses a series of thin plates to transfer heat between two fluids. In the new era of sustainability, the growing urgency to save energy and reduce overall environmental impacts has placed greater emphasis on the use of heat exchangers with better thermal efficiency. They improve energy efficiency, because the energy already within the system can be transferred to another part of the process, instead of just being pumped out and wasted. Heat exchangers are devices used to transfer energy between two fluids at different temperatures.
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