Browse > Article

Development of a Linearized Model and Verification of the Exact Solution for the Analysis of a Desiccant Dehumidifier  

이길봉 (서울대학교 대학원 기계항공공학부)
이대영 (한국과학기술연구)
김민수 (서울대학교 기계항공공학부)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.16, no.9, 2004 , pp. 811-819 More about this Journal
Abstract
A silica gel desiccant dehumidifier is studied theoretically in this paper adopting several linearization assumptions. The governing equations are linearized with the assumptions, and the exact solutions to the temperature and the humidity ratio are obtained. In spite of the assumptions, the theoretical results are found to agree well with those from the numerical analysis without any assumption. In typical operation ranges of the desiccant dehumidifier, the time-averaged errors in the process air temperature and humidity ratio are less than 4% and 7%, respectively, and the corresponding root-mean-square values are less than 5% and 15%, respectively The analytical solutions are expected to contribute to the fundamental understanding of the dehumidification and regeneration processes and the correlation analysis of the numerous parameters influencing the dehumidifier operation.
Keywords
Desiccant; Dehumidifier; Linearization; Error;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Proposal for a hybrid desiccant air conditioning system /
[ Maclaine-cross, I.L. ] / ASHRAE Trans.
2 A feasibility study of a solar desiccant air-conditioning system-Part Ⅰ: Psychrometrics and analysis of the conditioned zone /
[ Davanagere, B.S.;Sherif, S.A.;Goswami, D.Y. ] / Int. J. Energy Res.   DOI   ScienceOn
3 Numerical simulation of combined heat and mass transfer process in a rotary dehumidifier /
[ Zheng, W.;Worek, W.M. ] / Numerical Heat Transfer   DOI   ScienceOn
4 Modeling of solid-side transfer in desiccant particle beds /
[ Peesaran, A.;Mills, A. ] / Solar Engineering
5 Theoretical analysis on the heat and mass transfer in a sorption cool pad /
[ Hwang, Y.S.;Lee, D.Y.;Park, B. ] / Korean Journal of Air-Conditioning and Refrigeration Engineering
6 The use of psychrometric charts for the optimisation of a thermal swing desiccant wheel /
[ Kodama, A.;Hirayama, T.;Goto, M.;Hirose, T.;Critoph, R.E. ] / Applied Thermal Engineering   DOI   ScienceOn
7 Design theory for rotary heat and mass exchangers-Ⅰ. Wave analysis of rotary heat and mass exchangers with infinite transfer coefficients /
[ Van den Bulck, E.;Mitchell, J.W.;Klein, S.A. ] / Int. J. Heat Mass Transfer   DOI   ScienceOn