Purpose

This study aims to use the thermal non-equilibrium approach to inquire the entropy production and conjugate natural heat exchange in a porous medium. Entropy generation is studied separately for the solid matrix and the hybrid nanoliquid.

Design/methodology/approach

The characteristic equations are unraveled by applying the finite element method. Mathematical relations are used to calculate the generated entropy for the hybrid nanoliquid and matrix structure.

Findings

Based on the results, the produced entropy and the viscous friction term associated with the hybrid nanoliquid phase are not affected by increasing the thermal conductivity ratio of the rigid wall to nanoliquid. Moreover, a higher amount of entropy is generated by the thermal gradients in the hybrid nanoliquid phase compared to the solid matrix.

Originality/value

No investigation in the literature has been reported in this context.

中文翻译：

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应用 LTNE 模型的混合纳米液体在多孔介质中产生自然热交换的熵

目的

本研究旨在使用热非平衡方法来探究多孔介质中的熵产生和共轭自然热交换。分别研究固体基质和混合纳米液体的熵产生。

设计/方法/方法

应用有限元方法解开特征方程。数学关系用于计算混合纳米液体和基质结构的生成熵。

发现

根据结果​​，产生的熵和与混合纳米液相相关的粘性摩擦项不受增加刚性壁与纳米液体的热导率比的影响。此外，与固体基质相比，混合纳米液相中的热梯度产生了更高量的熵。

原创性/价值

文献中没有关于这方面的调查报告。