Study of heat transfer characteristics on forced convection system with nanofluid

Abstract

Heat transfer enhancement mechanisms play a vital role in the industrial application in order to extract and supply the heat to the heat exchangers and thereby enhance heat transfer either by active or passive method In this investigation passive method was involved since it does not require any external heat supply or source Interpolation of cylindrical pipe equipped with the conical strip inserts showed influencing effect on the strong heat transferring dissemination along the flow path The mechanisms engaged in this method swirl triggered the process Even after effectively disrupting both the thermal and hydraulic boundary layers this process showed effective chaotic fluid mixing along the test section and in turn enhanced convective heat transfer taken place On the contrary pressure drop was also intensified due to rise in shear stress this undesirable factor demanded more investigation on the use of the conical strip inserts in the industrial application This study thus augments as well as ensures substantial heat transfer improvement by using the conical strip inserts Initially ZrO2 zirconia nanoparticle characterization study was conducted then ZrO2 DI de ionised water nanofluid was prepared with three different volume concentrations Thermo physical properties of nanofluid newlinesuch as thermal conductivity viscosity and Zeta potential were carefully studied and exhibited results were good agreement with the literature newline newline