Adsorption Characteristics of a Novel Polymeric Desiccant

Title
Adsorption Characteristics of a Novel Polymeric Desiccant
Authors
이주현이대영
Keywords
desiccant; sorption; diffusivity
Issue Date
2012-03
Publisher
Thermal and Fluids Engineering Conference
Citation
, 1-4
Abstract
Compared with conventional vapor compression air conditioning system, desiccant cooling system is advantageous in being environment-friendly, energy saving and cost-effective. The properties such as isotherm and diffusivity of desiccants play a significant role on the performance of desiccant cooling system. In this article, the sorption characteristics of water vapor on the novel polymeric desiccant are studied experimentally using uptake measurement method. Four sorption isotherms, correspond to 30°C, 40°C, 50°C, 60°C, are obtained at relative humidity ranging from 5% to 70%. The kinetic sorption behavior is analyzed by applying modified Fick’s law and diffusivity constants are also determined. The sorption capacity increases linearly with the relative humidity and the temperature effect is not observed. The sorption capacity of the novel desiccant is found to be more than 2-5 times in comparison with silica gel at the relative humidity of 70% showing a great potential for improved performance of a desiccant cooling system.
URI
http://pubs.kist.re.kr/handle/201004/43906
Appears in Collections:
KIST Publication > Conference Paper
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