Simulation and Modeling of boiling and condensation pressure drop in heat exchangers

Heat exchangers in various devices such as the boiler, steam generator, condenser, evaporator, cooling tower, heater fan coils, cooling and heaters are used. Montreal statute has forbidding the use of Freon refrigerants On the other hand, high-efficiency heat exchangers refrigeration industry demand, according to the researchers in recent years to explore ways to improve the heat exchangers have condensation and boiling. This paper presents an overview of modeling and empirical relationships polished pressure drop in pipes, tubes with internal fins of the heat exchanger . Modeling tools and techniques in this application is by ansys fluent.The purpose of this paper is improving the heat transfer of heat exchanger tubes in boiling and condensation and modeling results that shows the pressure drop in tube of heat exchanger.

کلیدواژه ها:

Boilin ، Condensation ، Heat exchanger ، Biphasic