期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：8
页码：14520
DOI：10.15680/IJIRSET.2016.0508029
出版社：S&S Publications
摘要：Parabolic solar trough collectors have been used for power production in solar thermal power plants.Nano science play very important or major role in the heat transfer solar applications, when used as a working fluid inparabolic collector enhances its efficiency due to its improved thermo-physical properties like thermal conductivity,heat capacity, density and viscosity. In order to achieve better heat transfer rate and to have efficiency heat exchangers,this can be done by changing the nature and properties of working fluids. Nano fluids are a suspension of nano particlesin a base fluid like water, ethylene glycol. In this paper both experimental and computational fluid dynamics study hasbeen presented. Nano fluid possess enhanced thermal conductivity and better heat transfer coefficient as compared tothe base fluid Nano fluid used is 0.01% CuO- H2O (DI). System performance is conducted under mass flow rate of 18Litres/hr. In ANSYS FLUENT 14.5 based computational fluid dynamics tool, the absorber tube is modeled as metalliccopper tube with working fluid flowing in it. Nano fluid is simulated using one-phase modeling techniques, while solarload cell and solar ray tracing are used for modelling the solar fluxes. Solar load model has been used for modelingsolar fluxes. S2S radiation model has been used for modeling heat transfer comprising of conduction, convection andradiation. It has been reported from both experimental and CFD analysis that system performance is enhanced by usingNano fluid as working fluid as compared with conventional fluid likes water. Also both experimental and CFDsimulated data gives good result agreement.
关键词：Computational fluid dynamics; efficiency; Nano fluid; parabolic solar collector.
