Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Development of a Linearized Model and Verification of the Exact Solution for the Analysis of a Desiccant Dehumidifier

제습기 성능분석을 위한 선형화 모델 및 해석해의 검증

  • 이길봉 (서울대학교 대학원 기계항공공학부) ;
  • 이대영 (한국과학기술연구) ;
  • 김민수 (서울대학교 기계항공공학부)
  • Published : 2004.09.01
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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.

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References

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