Om Shankar Prajapati and A.K. Rajvanshi

 

Malaviya National Institute of Technology, Jaipur, India.

 

Recent investigations on nanofluids indicate that the suspended nanoparticles markedly change the heat transfer characteristics of the suspension. In this study, convective heat transfer characteristics of ZnO-water nanofluids were investigated. Experiments were conducted with ZnO-water nanofluids at particle volume concentrations up to 0.1 volume %, constant subcooling of 20°C, pressure 1 bar, mass flux 400 kg/m2s and heat fluxes up to 200 kW/m2 with variable. Effect of heat flux and nanofluid concentration on heat transfer coefficient of ZnO-water nanofluids was investigated. Study reveals that heat transfer coefficient increases with ZnO-water nanofluids.

Keywords: Nanoparticles, Nanofluids, Thermal Conductivity, Convective heat Transfer

 

 

 

 

 

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