Share
IIR document
A theoretical and experimental study on the variable evaporating temperature refrigeration performance of non-azeotropic refrigerant mixtures.
Number: pap. n. 231
Author(s) : PENGFEI Y., XIAOSONG Z., JIAN L.
Summary
A variable evaporating temperature refrigeration system of new non-azeotropic refrigerant mixtures with wide gliding temperature is proposed which can efficiently provide 7°C/12°C and 18°C/23°C cold water for THIC. The system based on the Lorenz cycle, in this work, R236fa/R32 (0.7/0.3) was selected as the working fluid. The cycle performance was analyzed based on the simulation of the ideal cycle and the working cycle. The air conditioning load was fixed at 4.66 kW, Comparing with the conventional refrigeration system are analyzed, and the effects on the properties of heat and moisture load matching unit are analyzed. The influence of variable evaporation temperature on the performance of the unit were studied through experiment. The research show that, when 0.2< a <0.5, this system has the effect of saving energy relatively Carnot cycle, the largest COP increased 22%. The COP decreases with increasing a. This system is not recommended for high wet load ratio (a >0.5) and low wet load ratio (a <0.2) air conditioning system. The evaporation temperature rises, the refrigerating system capacity and the COP increase with the evaporation temperature rises.
Available documents
Format PDF
Pages: 8 p.
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: A theoretical and experimental study on the variable evaporating temperature refrigeration performance of non-azeotropic refrigerant mixtures.
- Record ID : 30015908
- Languages: English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Publication date: 2015/08/16
- DOI: http://dx.doi.org/10.18462/iir.icr.2015.0231
Links
See other articles from the proceedings (657)
See the conference proceedings
Indexing
-
Themes:
Thermodynamics and changes of state;
HFCs;
Blends - Keywords: R32; R236fa; Performance; Zeotropic mixture; Expérimentation; Evaporation; Refrigerant
-
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
-
Performance of refrigeration cycle with R32-R13...
- Author(s) : SEKI M., OSAJIMA A., NAKANE Y., et al.
- Date : 1994/07/19
- Languages : English
- Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
View record
-
A study on the application of non-azeotropic re...
- Author(s) : MURATA A., TAKAZAWA H., KAJIKAWA T.
- Date : 1992
- Languages : English
- Source: Heat Transf., Jap. Res. - vol. 21 - n. 7
View record
-
Thermodynamic property model for the mixtures o...
- Author(s) : AKASAKA R.
- Date : 2010/07/12
- Languages : English
- Source: 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
Thermodynamic-property modeling of HFO-1234ze(E...
- Author(s) : TANAKA K., HIGASHI Y., AKASAKA R.
- Date : 2011/08/21
- Languages : English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
View record