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Dynamic Model of a Vertical Tube Absorber for Ammonia/water Absorption Refrigerators  

문현석 (홍익대학교 대학원)
정은수 (홍익대학교 기계 · 시스템디자인공학과)
김병주 (홍익대학교 기계 · 시스템디자인공학과)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.14, no.10, 2002 , pp. 844-853 More about this Journal
Abstract
A dynamic model which simulates the coupled heat and mass transfer within a vertical tube absorber was developed. The liquid film is a binary mixture of two components, and both of these components are present in the vapor phase. The pressure, concentration, temperature and mass flow rate of the vapor are obtained by assuming that the pressure is uniform within an absorber. The model was applied to an absorber for an ammonia/water absorption refrigerator. The transient behaviors of the pressure, the outlet temperature and the concentration of the solution and the cooling water outlet temperature on a step change at the absorber inlet of the cooling water temperature, the vapor mass flow rate and the concentration of the solution were shown.
Keywords
Dynamic model; Absorber; Vertical tube; Absorption refrigerator; Ammonia/water;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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