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RESEARCH PAPERS: Forced Convection

Readsorption Processes in a Sorption Bed Heat Exchanger During Pressurization and Depressurization

[+] Author and Article Information
W. Zheng, W. M. Worek

The University of Illinois at Chicago, Department of Mechanical Engineering (m/c 251), 842 West Taylor Street, Chicago, IL 60607-7022

J. Heat Transfer 117(4), 865-870 (Nov 01, 1995) (6 pages) doi:10.1115/1.2836303 History: Received July 01, 1994; Revised February 01, 1995; Online January 23, 2008

Abstract

Readsorption occurs inside a sorbent-bed heat exchanger during the pressurization and depressurization processes, causing the adsorbate to be relocated from one end of the sorption bed heat exchanger to the other. In this paper, the readsorption processes are quantitatively determined for both the pressurization and depressurization processes in a sorbent-bed heat exchanger with a uniform initial temperature, loading, and pressure. Also, the readsorption that occurs during a typical operation of a two-bed sorption heat pump is quantified. The results show that the readsorption can cause as much as 30 percent of the ammonia in a sorbent-bed heat exchanger to be reallocated.

Copyright © 1995 by The American Society of Mechanical Engineers
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