文章基本信息

标题：Using MHD free convection to receive the generated heat by an elliptical porous media
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作者：Gongxing Yan ; Ali Shawabkeh ; Rishabh Chaturvedi 等
期刊名称：Case Studies in Thermal Engineering
印刷版ISSN：2214-157X
电子版ISSN：2214-157X
出版年度：2022
卷号：36
页码：102153
DOI：10.1016/j.csite.2022.102153
语种：English
出版社：Elsevier B.V.
摘要：In many chemical processes, porous medium is usually used as a catalyst and mixing of reactants that may generate heat in thermal chemical processes. In this study, a cavity with cool walls was exerted to cool the porous medium using free convection process. A hot elliptical porous medium made of nickel with 0.98 porosity was located in the center of a square chamber with cold vertical walls, which was filled with ethylene glycol and titanium oxide nanoparticles. Moreover, A magnetic field was also applied to control the flow and heat transfer mechanisms. In present investigation, a number of cases were simulated for porous Rayleigh number (102≤Rap≤106), Hartmann number (0≤Ha≤150), and volume fraction 0≤φ≤9%. The findings showed that increment of Hartmann number decreased havg in all of the porous Rayleigh numbers and volume fractions except 9%. Moreover, adding oxide titanium nanoparticles to ethylene glycol enhanced havg by small amount for all of the porous Rayleigh numbers and Hartmann numbers except Ha=0.
关键词：Elliptical porous media;Nickel foam;Free convection;MHD;Ethylene glycol;Titanium oxide nanoparticles