Manufacturers of gasketed-plate heat exchangers have, until Water flowing at a rate of enters the inside of a countercurrent, double-pipe heat exchanger at K and is heated by an oil stream that enters at at a rate of/ 2 Overview of Heat Exchanger Design MethodologyHeat Exchanger Design MethodologyProcess and Design SpecificationsThermal and For plate heat exchangers, the design methodology is developed on the basis of plate-fin heat exchanger methodology, and takes phase change, plate pattern s