An active charge, passive discharge floor space heating system

Salt, H.; Mahoney, K. J.

doi:10.1016/0038-092x(87)90067-3

Cited by 4 publications

(1 citation statement)

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“…Nonetheless, mixed (forced and free) convection in double‐diffusive fluid‐saturated porous media is more relevant in geothermal reservoir applications as the study bears relevance in understanding the formation of an island geothermal reservoir after a magma chamber is intruded from below (Cheng 36 ). The study is also of importance in characterizing the convective transport processes around a deep geological repository for the disposal of high‐level nuclear waste, for example, spent fuel rods from nuclear reactors (Lai 37 ) and in solar space heating applications wherein a horizontal packed bed is charged by passing hot air from solar collectors through the bed horizontally (Salt and Mahoney 38 ). Another practical application is in the design of a solar pond wherein cool make‐up water is continuously added at the top and warm water is withdrawn continuously from the bottom of the pond for distribution to the point of use.…”

Section: Introductionmentioning

confidence: 99%

Horizontal pressure gradient and Soret effects on the onset of thermosolutal porous convection

et al. 2021

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The intricacies of a constant horizontal pressure gradient on the onset of Soret‐driven thermosolutal porous convection have been investigated. The resulting generalized eigenvalue problem is solved numerically using the Galerkin method and also the condition for the onset is obtained in a closed‐form using a single‐term Galerkin method with trigonometric trial function. The results obtained from both methods are found to be in good agreement. The effect of increasing horizontal pressure gradient, Lewis number, Soret parameter, and the Vadasz number is to hasten, while the increase in the solute Darcy–Rayleigh number is to delay the onset of oscillatory convection. The presence of the horizontal pressure gradient is found to decrease the threshold value of solute Darcy–Rayleigh number beyond which the instability sets in as oscillatory. Moreover, the horizontal pressure gradient imparts a conflicting behavior on the critical wave number and critical frequency of oscillations. The numerical results attained under the limiting cases are shown to be in excellent agreement with the published ones.

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Section: Introductionmentioning

confidence: 99%