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Heat and mass transfer of ammonia gas absorption into falling liquid film in a horizontal tube.

[In Japanese. / En japonais.]

Author(s) : INOUE N., YABUUCHI H., GOTO M., et al.

Type of article: Article

Summary

Heat and mass transfer coefficients during ammonia gas absorption into a falling liquid film formed by distilled water on a horizontal tube were obtained experimentally. The test absorber consists of 200 mm i.d., 600 mm long stainless steel shell, a 17.3 mm o.d., 14.9 mm i.d. stainless steel test tube with 600 mm working length mounted along the axis of shell, and a 12.7 mm o.d. pipe manifold of supplying the absorbent. In the paper, it is clearly demonstrated that the heat and mass transfer coefficient could be enhanced by increasing the flow rate of absorbent and temperature difference between inlet absorbent and ammonia gas, also heat driven by the temperature difference has an effect on the heat transfer of the falling liquid film and mass transfer of vapour side. The new correlation of heat transfer in dimensionless form was proposed by the temperature difference which was considered heat driven of vapour and liquid film side using the interface temperature of the vapour and liquid phase. The new correlations of mass transfer on an interface of vapour and liquid phase in dimensionless form were proposed by using effect factors derived from absorption phenomena.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2005-2562
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 21 - n. 4
  • Publication date: 2004

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