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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

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

암모니아/물 흡수식 냉동기의 수직원관형 흡수기의 동적 모델

  • 문현석 (홍익대학교 대학원) ;
  • 정은수 (홍익대학교 기계 · 시스템디자인공학과) ;
  • 김병주 (홍익대학교 기계 · 시스템디자인공학과)
  • Published : 2002.10.01
Download PDF
⟨ Previous Next ⟩

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

References

  1. Air-Conditioning and Refrigeration Engineering v.27 no.1 Ammonia-water absorption technologies in USA and Japan(1) Kang, Y. T.
  2. IIF-IIR-Sections B and E Study on the characteristics of ammonia-water absorption refrigerator Saito, K.;Kimijima, S.;Takei, T.;Kawai, S.
  3. Journal of JSME(B) v.60 no.576 Simulation and experimental research of dynamic characteristics of single-effect absorption refrigerators driven by waste hot water Sugano, N.;Saito, K.;Kawai, S.;Nisiyama, N.;Honma, R.;Wakimizu, H.
  4. International Absorption Heat Pump Conference Computer simulation on dynamic behavior of a hot water driven absorption chiller Jeong, S.;Kang, B. H.;Lee, C. S.;Karng, S. W.
  5. Int. J. Heat Mass Transfer v.35 Dynamic model of a film absorber with coupled heat and mass transfer Wassenaar, R. H.;Westra, J.J. W.
  6. Int. J. Heat. Mass Transfer v.35 Transient heat and mass transfer in film absorption of finite depth with nonhomogeneous boundary conditions Hajji, A.;Worek, W. M.
  7. Proceedings of 28th IECEC v.1 Absorption Analysis of Ammonia in an Aqueous Solution Arman, B.;Panchal, C. B.
  8. Transaction of the American Inst. of Chemical Engineering v.33 The Condensation of Mixed Vapors Colburn, A. P.;Drew, T. B.
  9. Korean Journal of Air-Conditioning and Refrigeration Engineering v.12 no.1 A numerical model for heat and mass transfer processes within a vertical tube GAX absorber Cheon, T. S.;Jeong, E. S.
  10. Convection Heat Transfer Bejan, A.
  11. Experimental Heat Transfer v.1 General film condendation correlations Chen, S. L.;Gerner, F. M.;Tien, C. L.
  12. Heat Transmission(3rd ed.) McAdams, W. H.
  13. AIChE Journal v.25 no.1 Gas absorption by a liquid layer flowing on the wall of a pipe Henstock, W. H.;Hanratty, T. J.