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Experimental researches on characteristics of vapour-liquid equilibrium of NH3-H2O-LiBr system.

Author(s) : WU Y. Y., CHEN Y., WU T. H.

Type of article: Article, IJR article

Summary

An improved system of NH3-H2O-LiBr was proposed for overcoming the drawback of NH3-H2O absorption refrigeration system. The LiBr was added to NH3-H2O system anticipating a decrease in the content of water in the NH3-H2O-LiBr system. An equilibrium cell was used to measure thermal property of the ternary NH3-H2O-LiBr mixtures. The pressure-temperature data for their vapour-liquid equilibrium data were measured at ten temperature points between 15-85°C, and pressures up to 2 MPa. The LiBr concentration of the solution was chosen in the range of 5-60% of mass ratio of LiBr in pure water. The experimental results show that the equilibrium pressures reduced by 30-50%, and the amount of component of water in the gas phase reduced greatly to 2.5% at 70°C. The experimental results predicted much better characteristics of the new ternary system than the NH3-H2O system for the applications.

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Pages: 328-335

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Details

  • Original title: Experimental researches on characteristics of vapour-liquid equilibrium of NH3-H2O-LiBr system.
  • Record ID : 2006-1206
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 2
  • Publication date: 2006/03

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