A Compact Low-Pressure Drop Desiccant Bed for Solar Air Conditioning Applications—2: Bench Scale Tests

[+] Author and Article Information
S. Kim, P. Biswas, A. F. Mills

School of Engineering and Applied Science, University of California, Los Angeles, Calif. 90024

J. Sol. Energy Eng 107(2), 120-127 (May 01, 1985) (8 pages) doi:10.1115/1.3267664 History: Received June 01, 1982; Online November 11, 2009


Bench scale tests of a laminar flow silica gel packing element are reported. The packing is based on a coated sheet concept with a single layer of 0.25 mm silica gel particles lining narrow passages of width 1.46–3.75 mm. Adsorption and desorption tests were performed for fixed inlet conditions and a uniform initial bed condition. Measured outlet air moisture contents and air temperatures were compared with theoretical predictions and reasonable agreement obtained. The major discrepancies appear to be system related, such as excessive air bypass and inaccurate accounting for heat loss from the sides of the unit.

Copyright © 1985 by ASME
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