Plate Heat Exchanger is one type of heat exchanger that uses metal plates to transfer heat between two fluids. This has a major advantage over a conventional heat exchanger in that the fluids are exposed to a much larger surface area because the fluids are spread out over the plates. This facilitates the transfer of heat, and greatly increases the speed of the temperature change. Its thermal principles are such as heat recovery, heat exchanging, condensation, sterilization, heat recycling, and many others. Wide range of plate heat exchangers for an extensive range of applications across a diverse spectrum of industries such as chemical process, pharmaceutical and biotechnological process, dairy, meat, food and beverages process , and waste water treatment.
The concept behind a heat exchanger is the use of pipes or other containment vessels to heat or cool one fluid by transferring heat between it and another fluid. In most cases, the exchanger consists of a coiled pipe containing one fluid that passes through a chamber containing another fluid. The walls of the pipe are usually made of metal, or another substance with a high thermal conductivity, to facilitate the interchange, whereas the outer casing of the larger chamber is made of a plastic or coated with thermal insulation, to discourage heat from escaping from the exchanger.