Numerical prediction of humidification process in planar porous membrane humidifier of a PEM fuel cell system to evaluate the effects of operating and geometrical parameters

Hashemi-Valikboni, Seyed Zeynolaabedin; Ajarostaghi, Seyed Soheil Mousavi; Delavar, Mojtaba Aghajani; Sedighi, Kurosh

doi:10.1007/s10973-020-10058-6

Cited by 9 publications

(1 citation statement)

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“…In redesigning a thermal system equipped with MF, the port density and porosity are vital factors that could significantly influence effective thermal conductivity. The porous materials used include various kinds of material, which the most common and efficient of them being copper foam, aluminum foam, nickel foam, and carbon-based foams such as graphite, employed mainly for high-temperature uses [158,159].…”

Section: Porous Materialsmentioning

confidence: 99%

A Review of Recent Passive Heat Transfer Enhancement Methods

et al. 2022

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Improvements in miniaturization and boosting the thermal performance of energy conservation systems call for innovative techniques to enhance heat transfer. Heat transfer enhancement methods have attracted a great deal of attention in the industrial sector due to their ability to provide energy savings, encourage the proper use of energy sources, and increase the economic efficiency of thermal systems. These methods are categorized into active, passive, and compound techniques. This article reviews recent passive heat transfer enhancement techniques, since they are reliable, cost-effective, and they do not require any extra power to promote the energy conversion systems’ thermal efficiency when compared to the active methods. In the passive approaches, various components are applied to the heat transfer/working fluid flow path to improve the heat transfer rate. The passive heat transfer enhancement methods studied in this article include inserts (twisted tapes, conical strips, baffles, winglets), extended surfaces (fins), porous materials, coil/helical/spiral tubes, rough surfaces (corrugated/ribbed surfaces), and nanofluids (mono and hybrid nanofluids).

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Section: Porous Materialsmentioning

confidence: 99%