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Secondary refrigerants for indirect refrigeration and heat pump systems: a comparison of thermodynamic properties of aqueous solutions and non aqueous liquids.

Author(s) : GRANRYD E., MELINDER Å.

Type of article: Article

Summary

All aqueous solutions which have been compared required roughly the same volume flow for a given situation, while the non-aqueous solutions required 2.5 to 3 times larger flow in order to transport a given capacity at a given temperature change. From a heat transfer point of view the aqueous solutions of calcium chloride, potassium carbonate and perhaps methyl alcohol and ethylene glycol are the best. For low temperature applications it is even more difficult to nominate good candidates. In practice also other factors must be taken into consideration. Corrosion characteristics, environmental issues as well as questions in relation to handling safety and flammability are very important decisive factors, and must not be forgotten.

Details

  • Original title: Secondary refrigerants for indirect refrigeration and heat pump systems: a comparison of thermodynamic properties of aqueous solutions and non aqueous liquids.
  • Record ID : 1995-3532
  • Languages: English
  • Source: ScanRef - vol. 23 - n. 4
  • Publication date: 1994/08
  • Document available for consultation in the library of the IIR headquarters only.

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