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Optimization of the Area Ratio of Regeneration to Dehumidification and Rotor Speed on the Condition of Low Regeneration Temperature  

Chung, Jae-Dong (Mechanical Engineering, Sejong University)
Lee, Dae-Young (Korea Institute of Science and Technology)
Yoon, Seok-Mann (District Heating Technology Research Institute, Korea District Heating Corporation)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.19, no.7, 2007 , pp. 521-528 More about this Journal
Abstract
The desiccant rotor is the most essential component of desiccant cooling system, but its design relies on manufacturer's experience and principles are not yet clear in spite of a lot of theoretical/experimental work published. The mathematical modeling of desiccant rotor needs solution of coupled partial differential equations of heat and mass transfer. In this study, numerical program is developed and validated using a real desiccant rotor. The calculation results are in reasonable agreement with the experimental data and other available numerical results. Optimization of desiccant rotor on the condition of low regeneration temperature are investigated. The optimal rotor speed at which the process outlet humidity becomes minimized, shows same as that of the system optimization. Compared to high regeneration temperature, broad is the range of optimal speed of low regeneration temperature. Systematic analysis on the optimal area ratio of regeneration to dehumidification section has also been conducted.
Keywords
Desiccant rotor; Desiccant cooling; Dehumidification; Regeneration; Heat and mass transfer;
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Times Cited By KSCI : 2  (Citation Analysis)
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