Combined heat and mass transfer in a porous adsorbent

P. Majumdar and W.M. Worek

Energy, 1989, vol. 14, issue 3, 161-175

Abstract: A model describing the combined heat and mass transfer processes that occur during sorption of water vapor in a fixed-bed, desiccant dehumidifier consisting of parallel channels is presented. In this system, with the desiccant manufactured in the form of a felt lining both walls of the channel, the gas-side resistance controls the transfer of moisture and heat from the air stream to the surface of the desiccant felt and the solid-side resistances control the mass and heat transport within the desiccant felt. The model presented in this paper is different from conventional simulation models, since it involves both gas- and solid-side resistances to heat and mass transfer using fundamental transport equations. Numerical results predicted by use of the model are compared with experimental data obtained from isothermal and nonisothermal adsorption tests. The comparison shows good agreement between experiment and theory. The influence of desiccant felt thickness and the amount of heat removed from desiccant felt are related to the effectiveness of the adsorption process.

Date: 1989
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:14:y:1989:i:3:p:161-175

DOI: 10.1016/0360-5442(89)90059-5

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