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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Effects of non-absorbable gases in the absorption process of water vapor Into the Lithium Bromide-water solution film on horizontal tube bank

수평관군에서 리튬브로마이드 수용액 막의 수증기 흡수과정에 대한 비흡수가스의 영향

  • Published : 2000.02.01
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Abstract

In the present study, the effects of film Reynolds number (60∼200) and volumetric content of non-absorbable gases (0∼10%) in water vapor on the absorption process of aqueous LiBr solution were investigated experimentally. The formation of solution film on the horizontal tubes of six rows were observed to be complete for Re>100. Transition film Reynolds number were found to exist above which the Nusselt number and Schmidt number diminishes with solution flow rate. As the concentration of non-absorbable gases increased, mass transfer rate decreased more seriously than heat transfer rate did. The degradation effects of non-absorbable gases seemed to be significant especially when small amount of non-absorbable gases were introduced to the pure water vapor.

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References

  1. Heat Transfer-Soviet Research v.12 Experimental study of the absorption of water vapor by thin films of aqueous lithium bromide Burdukov, A. P.;Bufetov, N. S.;Deriy, N. P.;Dorokhov, A. R.;Kazakov, V. I.
  2. Proc. Absorption Heat Pump Conf. Absorption phenomena in water-lithium bromide films Vliet, G. C.;Cosenza, F. B.
  3. ASHRAE Transactions v.96 Absorption in falling water/LiBr films on horizontal tubes Cosenza, F. B.;Vliet, G. C.
  4. Solar Engineering v.1 Non-absorbable gas effects on heat and mass transfer in wavy laminar falling film absorption Ameel, T. A.;Wood, B. D.
  5. Chem. Eng. Comm v.125 Experimental study for heat and mass transfer in wavy film absorption with the presence of non-absorption with the presence of non-absorbable gases Yang, R.;Wood, B. D.
  6. Int. Journal of Heat and Mass transfer v.41 Non-absorbable gas effect on the wavy film absorption process Yang, R.;Jou, T.
  7. J. of KSME(B) v.22 no.4 Effects of non-absorbable gases on the absorption process of LiBr solution film in vertical tube : (1) Experimental study Kim, B. J.;Lee, C. W.
  8. J. of KSME(B) v.22 no.4 Effects of non-absorbable gases on the absorption process of LiBr solution film in vertical tube : (2) Theoretical study Kim, B. J.;Lee, C. W.
  9. Chem. Eng. v.23 no.7 Liquid phase mass transfer in wetted-wall columns Hikita, H.;Nakanishi, K.;Kataoka, T.