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...Heat ehheat eeat exxcxchangerscchangershangers introductioniintroductionntroductiion gunt basic knowledge exchangers are used for heating cooling evaporation or in energy engineering the chemical exchanger types condensation of media at different temperatures industry and food but also function is to transfer thermal a medium with great importance computer technology automo due large number applications designs have been developed recuperators some which work higher temperature level lower tive sector can be both main auxiliary very ways process distinction made between direct indirect according second law thermodynamics trans depending on whether involved come into port always goes from contact each other not type application advantages disadvantages tubular use low power simple design two liquids high pressures transferred classi cation operating principle suitable highly viscous easy clean uids costs per area regenerators mixed hot blast heaters furnaces wet tower rotary shell tube ...