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Short fundamental equations of state for new refrigerants.

Author(s) : PIAZZA L., SPAN R.

Summary

For many widely used refrigerants, highly accurate multiparameter equations of state are available today, which are internationally agreed upon as standards for thermophysical properties of the corresponding fluids. In the field of halogenated hydrocarbons the working group "Annex 18" of the International Energy Agency (IEA) has established standards for the most relevant pure refrigerants. Beside this, it has inspired coordinated work on several other halogenated hydrocarbons and mixtures used in refrigeration and air conditioning. For the "natural" refrigerants carbon dioxide, ammonia und isobutane reference equations of state have been developed in Germany in the past 15 years; the National Institute of Standards and Technology (NIST) of the United States of America has almost finalized work on a new reference equation for propane.

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Pages: 2005-3

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Details

  • Original title: Short fundamental equations of state for new refrigerants.
  • Record ID : 2006-0557
  • Languages: English
  • Source: Commercial Refrigeration. Thermophysical Properties and Transfer Processes of Refrigerants. Proceedings of the IIR International Conferences.
  • Publication date: 2005/08/02

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