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Experimental study of forced convection heat transport in porous media

机译：多孔介质中强制对流传热的实验研究

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摘要

The present study is aimed at extending this thematic issue through heat transport experiments and their interpretation at laboratory scale. An experimental study to evaluate the dynamics of forced convection heat transfer in a thermally isolated column filled with porous medium has been carried out. The behavior of two porous media with different grain sizes and specific surfaces has been observed. The experimental data have been compared with an analytical solution for one-dimensional heat transport for local nonthermal equilibrium condition. The interpretation of the experimental data shows that the heterogeneity of the porous medium affects heat transport dynamics, causing a channeling effect which has consequences on thermal dispersion phenomena and heat transfer between fluid and solid phases, limiting the capacity to store or dissipate heat in the porous medium.
机译：本研究旨在通过热传递实验及其在实验室规模的解释来扩展此主题问题。已经进行了一项实验研究，以评估在充满多孔介质的热隔离塔中强制对流换热的动力学。已经观察到两种具有不同晶粒尺寸和比表面积的多孔介质的行为。将实验数据与局部非热平衡条件下一维热传递的解析解进行了比较。对实验数据的解释表明，多孔介质的非均质性会影响传热动力学，从而产生导流效应，从而影响热分散现象以及流体和固相之间的传热，从而限制了在多孔介质中存储或消散热量的能力。中。

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