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Optimized analysis and enhanced thermal efficiency of modified hybrid nanofluid (Al2O3, CuO, Cu) with nonlinear thermal radiation and shape features
Case Studies in Thermal Engineering ( IF 6.4 ) Pub Date : 2021-09-16 , DOI: 10.1016/j.csite.2021.101425
A. Abbasi 1 , Kamel Al-Khaled 2 , M. Ijaz Khan 3, 4 , Sami Ullah Khan 5 , Adel M. El-Refaey 6 , Waseh Farooq 1 , Mohammed Jameel 7 , Sumaira Qayyum 8
Affiliation  

The thermal characteristics of modified hybrid nanoparticles have been studied between two parallel walls with applications of entropy generation and nonlinear thermal radiation. Three types of nanoparticles namely copper oxide (CuO), copper nanoparticles (Cu) and aluminum oxide (Al2O3) are utilized to thermal determination of heat transfer. The contribution of viscous dissipation and Joule heating is also inspected. Moreover, the shape effects for the three types of nanoparticles are addressed as a novelty. The mathematical model is developed in view of associated laws and thermal properties of modified hybrid nanofluid. The problem is first modeled in terms of partial differential equations for which the similarity variables are followed to convert the system into dimensionless form. The Keller box numerical scheme is used to obtain the solution. The thermo-physical properties of nanoparticles and fluctuation in the heat transfer rate are reported for the flow parameters. The results claimed that the temperature profile enhanced solid volume faction of copper oxide nanoparticles. A lower change in the entropy generation is observed for the solid volume fraction of aluminum oxide and copper nanoparticles.



中文翻译:

具有非线性热辐射和形状特征的改性混合纳米流体(Al2O3、CuO、Cu)的优化分析和增强的热效率

已经通过熵产生和非线性热辐射的应用研究了改性混合纳米粒子在两个平行壁之间的热特性。三种类型的纳米粒子,即氧化铜 (CuO)、铜纳米粒子 (Cu) 和氧化铝 (Al 2 O 3) 用于热传递的热测定。还检查了粘性耗散和焦耳热的贡献。此外,三种类型的纳米粒子的形状效应被视为一种新颖性。数学模型是根据改性混合纳米流体的相关定律和热特性而开发的。该问题首先根据偏微分方程建模,其中遵循相似性变量以将系统转换为无量纲形式。凯勒箱数值方案用于获得解决方案。报告了流动参数的纳米粒子的热物理性质和传热速率的波动。结果表明,温度分布增强了氧化铜纳米粒子的固体体积分数。

更新日期:2021-09-16
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