Volume 12, Issue 6 (2013)                   Modares Mechanical Engineering 2013, 12(6): 19-29 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Numerical study of the importance of inter particle mass transfer resistance in the modeling of porous bed of adsorption chillers. Modares Mechanical Engineering. 2013; 12 (6) :19-29
URL: http://mme.modares.ac.ir/article-15-4302-en.html
Abstract:   (4311 Views)
In order to investigate the effect of various parameters on the adsorption chiller performance, the adsorbent bed should be modeled with appropriate governing equations and assumptions. In order to study the adsorption chiller numerically, the governing equations should be modeled in four domains of thermal fluid, metal tube, fins and adsorbent bed simultaneously. One of the assumptions, which greatly influenced the modeling complexity and computation cost is the uniform pressure approach for the bed. For some of modeling conditions the pressure of the bed should be calculated and the inter particle resistance cannot be neglected. In this study with comparing the governing equations of uniform pressure and non-uniform pressure approach, a dimensionless number is introduced and a limiting value is determined with the help of numerical results such as specific cooling power. This parameter can be employed to decide about the appropriate bed pressure assumption prior to start the modeling process.
Full-Text [PDF 1098 kb]   (3289 Downloads)    

Received: 2012/06/24 | Accepted: 2012/08/9 | Published: 2012/12/19

Add your comments about this article : Your username or Email: