A heat exchanger is a device that transfers heat between two or more fluids without mixing them. It is widely used in heating, cooling, and energy recovery systems across various industries. Known for improving efficiency and reducing energy costs, common types include shell and tube, plate, and air-cooled heat exchangers. https://www.heatexchanger.co.in/Heat-Exchanger-Blog-Details/role-of-heat-exchangers-in-industries/