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Patch-based thermodynamic property models for the subcritical region.

Number: 210074

Author(s) : LAUGHMAN C., QIAO H.

Summary

Model-based design approaches for vapor-compression cycles depend heavily upon refrigerant property representations that are fast, accurate, and consistent. We describe an approach based upon B-spline interpolants that describes properties such as density, temperature, and specific entropy as the intersection of multiple surfaces, which are referred to as ”patches.” When combined with a transformation of thermodynamic coordinates, this approach can calculate the density over a domain with a maximum absolute percentage error less than 3_10-5 and a speedup over REFPROP of greater than 100x.
 

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Pages: 10

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Details

  • Original title: Patch-based thermodynamic property models for the subcritical region.
  • Record ID : 30028624
  • Languages: English
  • Subject: Technology
  • Source: 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2021/05
  • Document available for consultation in the library of the IIR headquarters only.

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