Adsorption Desorption Operations of Multilayer Desiccant Packed Bed for Dehumidification Applications. | ||||
| MEJ- Mansoura Engineering Journal | ||||
| Article 18, Volume 32, Issue 1, March 2007, Page 38-59 PDF (1019.18 K) | ||||
| Document Type: Research Studies | ||||
| DOI: 10.21608/bfemu.2020.128121 | ||||
 View on SCiNiTO | ||||
| Author | ||||
A. E. Kabeel 
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| Mechanical Power Department, Faculty of Engineering., Tanta University., Tanta., Egypt | ||||
| Abstract | ||||
| In this work, the effect of design and operating parameters on the performance of a multilayer desiccant packed bed was theoretically and experimentally studied. In the experimental work, a silica gel packed bed of eight layers has been studied. The transient value of the mass of adsorbed water and desorbed water were measured for different values of the bed length. The theoretical model shows the dependence of the dimensionless value of water content in the bed on the dimensionless time. Also the model shows that the dimensionless temperature depends on the bed characteristics and bed water content. The effect of inlet air humidity and velocity on the adsorption process for each bed layer was studied at different inlet velocity and at different air humidity. The effect of inlet temperature on desorption process for each packed bed layer was also studied at different inlet temperatures. The theoretical model also introduces an equation which can be used to predict the optimum bed length. Good agreement between experimental and theoretical results was found. | ||||
| Keywords | ||||
| Adsorption; Desorption; Silica gel; Desiccant; Dehumidification | ||||
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