概念逆流MCHE在CuO-Water纳米流体上的性能:几何形状的影响

Avdhesh Sharma
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引用次数: 0

摘要

微通道换热器(MCHE)可以设计成不同的通道几何形状,如圆形、三角形、矩形、正方形、梯形和六边形。本文重点研究了沟道几何形状对逆流动MCHE热工、水力和综合性能的影响。本文设计了不同通道形状和纳米流体热物理性质(即导热系数、粘度等)的Nusselt和Poiseuille数。结果表明,梯形泵浦功率对纳米流体流动非常敏感。矩形逆流MCHE具有最高的热效率,而等三角形几何形状通过将压力能转换为热能而具有最佳的整体性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance of a Conceptual Counter-flow MCHE operated on CuO-Water Nanofluid: Influence of Geometry
Microchannel heat exchangers (MCHE) can be designed with different channel geometry such as circular, triangular, rectangular, square, trapezoidal and hexagonal. In this article, the influence of channel geometry on thermal, hydraulic and overall performance of counter flow MCHE operated on CuO-water nanofluid flow has been highlighted. Herein, Nusselt and Poiseuille number for different channel shapes and thermo-physical properties of CuO-water nanofluid (viz., thermal conductivity, viscosity…) have been designed either empirically or adopted from literature. Results of pumping power with trapezoidal geometry MCHE is found to be highly sensitive with nanofluid flow. Rectangular shape counter flow MCHE gives highest thermal effectiveness, while iso-triangular geometry gives best overall performance by converting the pressure energy into thermal energy.
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