STUDY ON EFFECT OF NANOFLUIDSON HEAT TRANSFER CHARACTERSTIC OF HEAT PIPE

Abstract

With the increase in requirement of advanced technical equipment   , of which there basic initial work  is carried out on the applications,  which used heat pipes for heat transfer. Heat pipes are one specific type of heat exchangers, having very wide application in electronics and other fields, because of its compactess,  high efficiency, less number of components and no need for external circulation of working fluid. This heat pipes previously carrying   conventional   fluid as working medium inside them. But in recent years  nanofluids   in heat pipes  have attracted a notable attention due to its superior heat transfer properties. .   Addition of nano size solid particles having high thermal conductivity to the working fluid of low conductivity, will enhance the overall heat transfer coefficient of the system and in turn the efficiency.  The effect of filling ratio, volume fraction of nano particles on thermal performance in various kind of heat pipes with different base fluids under various operating conditions has been discussed . This paper discusses relativity of total heat resistance between the heat pipe with nano fluid and with existing fluids. Also the basic work of heat pipe nanofluid and the effect of nanofluid concentration on heat pipe are discussed. The studied results have shown a remarkable influence on decrease in thermal resistance of the heat pipe wall.