Article | Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015 | Mass Conserving Models of Vapor Compression Cycles
Göm menyn

Title:
Mass Conserving Models of Vapor Compression Cycles
Author:
Christopher Laughman: Mitsubishi Electric Research Laboratories, USA Hongtao Qiao: Mitsubishi Electric Research Laboratories, USA
DOI:
10.3384/ecp15118759
Download:
Full text (pdf)
Year:
2015
Conference:
Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015
Issue:
118
Article no.:
081
Pages:
759-767
No. of pages:
9
Publication type:
Abstract and Fulltext
Published:
2015-09-18
ISBN:
978-91-7685-955-1
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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Many dynamic models of vapor compression systems experience nonphysical variations in the total refrigerant mass contained in the system when common modeling approaches are used. Ratherthan use the traditional state variables of pressure and specific enthalpy, the use of density as a state variable can eliminate these variations. A set of test models is developed in Modelica to study the effect of the state variable selection on the overall system charge, and results indicate that this alternative approach has significant benefits for maintaining a specified mass of refrigerant in the cycle.

Keywords: vapor compression cycle; simulation; mass conservation

Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Author:
Christopher Laughman, Hongtao Qiao
Title:
Mass Conserving Models of Vapor Compression Cycles
DOI:
http://dx.doi.org/10.3384/ecp15118759
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Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Author:
Christopher Laughman, Hongtao Qiao
Title:
Mass Conserving Models of Vapor Compression Cycles
DOI:
http://dx.doi.org/10.3384/ecp15118759
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