COMPARISON OF THE REFRIGERANTS HFC-134A AND CFC-12

被引：5

作者：

PETERSSON, B

THORSELL, H

机构：

[1] Department for Applied Thermodynamics and Refrigeration, Royal Institute of Technology, Stockholm

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 1990年 / 13卷 / 03期

关键词：

CFC; 12; compressor tests; HFC; 134a; refrigerants;

D O I：

10.1016/0140-7007(90)90072-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A comparison of the refrigerants HFC 134a and CFC 12 has been carried out and the results from a theoretical analysis and from tests with an open piston compressor are reported in this paper. The results indicate that the tested compressor will give a greater refrigerating capacity with HFC 134a than with CFC 12 for certain operating conditions. However, the results also indicate an increased operating power for the compressor over the entire temperature range. As a result the coefficient of performance is decreased. Another noticeable result is dependency of the compressor's isentropic efficiency on temperature when using HFC 134a. This might be explained by the properties of the polyalkene glycol oil which is used with HFC 134a. The increased cost of using HFC 134a is justified if the environmental aspects are considered and the practical problems, such as the influence on the material in the refrigeration cycle, can be solved. © 1990.

引用

页码：176 / 180

页数：5

共 11 条

[1]

Short, Sjoholm, The future of oil flooded twin-screw compressor performance and suitable lubricants for HFC 134a, Purdue Compressor Engineering Conference, (1989)

[2]

Baer, Kabelac, Klima-Kälte-Heizung, Vorlaufige Zustandgleichungen für das ozonundschädliche Kältemittel R 134a, 2, (1989)

[3]

Borchardt, Thermodynamic Properties of R 134a, (1979)

[4]

Christie, Framtiden för köldmedier av flour-kol typ, Scand Refrig, 1, (1989)

[5]

ICI Chemicals and Polymers, Arcton 134a Preliminary Data Sheets, (1988)

[6]

Spauschus, HFC 134a as a substitute refrigerant for CFC 12, Int J Refrig, 11, (1988)

[7]

Zurer, Search intensifies for alternatives to ozone-depleting halocarbons, C & EN, 8, (1988)

[8]

Wilson, Basu, Thermodynamic properties of a new stratospherically safe working fluid - Refrigerant 134a, ASHRAE Trans, 2, (1988)

[9]

Andersson, Prov och analys av fövrångare, kondensor och kompressor i ett luftkonditionering ssystem för bilar, (1987)

[10]

Thorsell, Livslängd och prestanda för villavärmepumpar, (1989)

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