每年出版 6 期
ISSN 打印: 1940-2503
ISSN 在线: 1940-2554
Indexed in
ANALYSIS OF HEAT AND MASS TRANSFER IN THE ADSORBENT BED OF A THERMAL WAVE ADSORPTION COOLING CYCLE
摘要
A coupled heat and mass transfer analysis of the adsorbent bed of a thermal wave adsorption cooling cycle is performed. The adsorbent bed is modeled two dimensionally. Governing equations for energy, mass, and momentum transfers are solved by Comsol Multiphysics simultaneously. Variations of temperature, pressure, amount adsorbed, equilibrium adsorption capacity, and mass transfer coefficient for a finless tube adsorbent bed are presented with multicolored plots. The desorption process is simulated in the model. Results show that the adsorbent bed reaches the maximum cycle temperature uniformly after 5000 s. Uniform pressure assumption can be used in the bed due to a small pressure gradient during the process. The amount adsorbed decreases from 26.1% to 8.89% in 5000 s. The temperature front progresses along the bed creating a thermal wave. The thermal wavelength needs to be short to enhance the bed effectiveness regenerating more heat between the beds of the thermal wave cycle. It can be concluded that a parametric study is recommended for a future work in order to investigate the effects of design and operational parameters on the dependent variables and thermal wavelength.
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Çağlar Ahmet, Yamalı Cemil, Baker Derek K., Two dimensional transient coupled analysis of a finned tube adsorbent bed for a thermal wave cycle, International Journal of Thermal Sciences, 73, 2013. Crossref
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Çağlar Ahmet, The effect of fin design parameters on the heat transfer enhancement in the adsorbent bed of a thermal wave cycle, Applied Thermal Engineering, 104, 2016. Crossref