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Applying surfactants to improve the absorption capacity of mixtures of lithium bromide and formates in absorption refrigeration coolers.

Author(s) : DE LUCAS A., DONATE M., RODRÍGUEZ J. F.

Type of article: Article, IJR article

Summary

The addition of a surfactant like n-octanol improves the absorption capacity of the absorbent solutions employed in absorption refrigeration coolers. The effect of the addition of n-octanol on the water vapour absorption properties of LiBr + CHO(2)Na (sodium formate) + water [LiBr/CHO(2)Na = 2 by mass] and LiBr + CHO(2)K (potassium formate) + water [LiBr/CHO(2)K = 2 by mass] solutions has been investigated. The enthalpies of dilution, vapour pressures, densities and viscosities of the mixtures were measured in the range of temperature from 293.15 to 333.15 K and concentrations between 20.0 and 45.0% by mass. The mixture LiBr + CHO(2)Na (sodium formate) + 1000 ppm of n-octanol solution at 45% by weight exhibits a greater vapour absorption capacity than the LiBr solution conventionally employed in this type of refrigerant machines.

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Pages: 1073-1080

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Details

  • Original title: Applying surfactants to improve the absorption capacity of mixtures of lithium bromide and formates in absorption refrigeration coolers.
  • Record ID : 2008-2514
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 6
  • Publication date: 2008/09

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