Numerical Simulation of Heat and Mass Transfer in Adsorbent Beds with Rectangular Fins

Abstract

A transient two-dimensional numerical model of coupled heat and mass transfers in adsorbent bed of a silica gel/water adsorption chiller system is presented for a plat bed with rectangular fins through the finite element method (FEM) simulations. The bed transient transport behaviors are investigated for all four cycle phases in detail. In the model, a linear driving force equation is used to account for the intra-particle mass transfer resistance. For the meantime, the refrigerant vapor superficial velocity describing the adsorbate flows is calculated by Darcy’s law. The effects of bed configurations including the space of fins and the height of fins on SCP and COP are all investigated. The results show that bed transfer processes are enhanced through extended surfaces of fins shape. Furthermore, at a given fins height, SCP increases with the increase in fins number, while at a fixed fins number it decreases as the fins height increases.

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Author Information
Sheng Tang, Beijing University of Technology, China
Yao Hua Zhao, Beijing University of Technology, China
Zhen Hua Quan, Beijing University of Technology, China
Yan Hua Diao, Beijing University of Technology, China

• Category: Hawaii Conference Series 2017, Hawaii Conference Series 2017 1, IICSEEHawaii2017, Oral Presentation
• Tag: Energy: Renewable Energy and Environmental Solutions,

Posted by James Alexander Gordon

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