Plate Type Heat Exchanger

The hot and cold fluids alternate between each of the plates.

Plate type heat exchanger.

Plate type heat exchanger consists of plates instead of tubes to separate the hot and cold fluids. Plate heat exchangers were first produced in the 1920s and have since been widely used in a great number of sectors. The high heat transfer efficiency for such a small physical size has increased the domestic hot water dhw flowrate of combination boilers. The flow pattern is set up so that the hot fluid flows between alternate spaces between plates with the cold fluid.

This facilitates the transfer of heat and greatly increases the speed of the temperature change. A plate exchanger consists of a series of parallel plates that are placed one above the other so as to allow the formation of a series of channels for fluids to flow between them. Gaskets act as seals between the plates. Plate type heat exchanger plate heat exchangers are now common and very small brazed versions are used in the hot water sections of millions of combination boilers.

A plate heat exchanger is a 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. Because each of the plates has a very large surface area the plates provide each of the fluids with an extremely large heat transfer area. Baffles direct the flow of fluid between plates. Fluids normally run counter currently through the heat exchanger.

It is made up of a series of plates held together in a frame with a fixed space between.