m.h saber - no.۲۲ , ۵th alley falamak shomali st shahrak qarb tehran
h mazaherashtiani - no.۲۲ , ۵th alley falamak shomali st shahrak qarb tehran
f behroozshad - south pars gas complex-iran

in this paper the heat pipe heat exchanger HPHE is considered and computaional fluid dynamics CFD is used to analyze its evaporators performance and based on it will be try to increase the thermal efficiency and to optimize the distribution os fluid flow in this type of heat exchnagers. the CFD principles which are made use in this article are effective and appropriate methods that using finite volumes to solve the processes that consist of transport phenomena. the necessary numerical computations are accomplished by fluent the CFD solver program and the results are given in graphical representation. this analysis is done for an existing HPHE with the specified conditions of inlet flow to evaporator and finally the comparison and conclusion are presented.

heat pipe heat exchanger , HPHE,simulation, CFD, fluent.