Summary
Simple and effective calculation models to determine thermodynamic properties of refrigerant are very necessary for simulation of refrigeration system. Correlations of saturated vapor pressure and liquid density for HFC-32 refrigerant were presented. On basis of GMA state equation of liquid for HFC-32, Helmholtz bias function and Maxwell relationship of the thermal physical parameters, the calculation models of enthalpy, entropy and specific heat capacity were deduced. The calculation models mentioned above with no iteration can achieve high precision and stability. Comparisons between calculation models and REFPROP7, covering saturation liquid line(275~335 ,0.862~4.095 ), have been made. The results show that, the average relative error and maximum relative error for all calculation models are less than 0.776% and 4.464%, respectively.
Available documents
Format PDF
Pages: 28-32
Available
Public price
20 €
Member price*
15 €
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: [In Chinese. / En chinois.]
- Record ID : 30012320
- Languages: Chinese
- Source: Journal of Refrigeration - vol. 34 - n. 2
- Publication date: 2013/04
- DOI: http://dx.doi.org/10.3969/j.issn.0253-4339.2013.02.028
Links
See other articles in this issue (8)
See the source
Indexing
-
Themes:
Thermodynamics and changes of state;
HFCs - Keywords: Saturation; Calculation; Liquid; R32; Thermodynamic property; Model; Equation of state
-
Thermodynamic properties of HFC32-HFC134a binar...
- Author(s) : PIAO C. C., NOGUCHI M., SATO H., WATANABE K.
- Date : 1994/07/19
- Languages : English
- Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
View record
-
Development of equation of state for the thermo...
- Author(s) : TOGASHI E.
- Date : 2014/03
- Languages : English
- Source: Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan - n. 204
View record
-
A fundamental equation for the calculation of t...
- Author(s) : PENONCELLO S. G., SHAN Z., JACOBSEN R. T.
- Date : 2000
- Languages : English
- Source: ASHRAE Transactions. 2000 Winter Meeting, Dallas, Texas + CD-ROM.
View record
-
Molecular dynamics simulation of thermodynamic ...
- Author(s) : ZHAO S., QI Y., ZHOU S., et al.
- Date : 2012/02
- Languages : Chinese
- Source: Journal of Refrigeration - vol. 33 - n. 143
- Formats : PDF
View record
-
Thermodynamic studies on refrigerants: apparatu...
- Author(s) : RICHON D., LAUGIER S., BOUCHOT C., et al.
- Date : 1999/09/19
- Languages : English
- Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
- Formats : PDF
View record