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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 1989.5
- 수록면
- 55 - 60 (6page)
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This paper presents an overview of the thermophysical properties of nonazeotropic refrigerant blends (NARBs) which have been considered prospective especially for advanced heat pump systems as well as for other industrial applications such as ultra-low temperature freezers for medical use, domestic air-conditioners, etc. After introducing some general backgrounds on the thermodynamic behaviors of NARBs briefly, the current state of the art on thermophysical properties research on NARBs which are also considered being possible candidates for CFC (chlorofluorocarbon) alternatives is reviewed. Thermophysical properties to be discussed in the present paper include not only the thermodynamic properties such as PVTx properties, vapor-liquid equilibria, critical parameters, etc., but also essential transport properties such as viscosity and thermal conductivity.
An emphasis is given to the most up-dated results due to an extensive research project partially supported by the Japanese Association of Refrigeration (JAR) on the occasion of its 60th anniversary of foundation celebrated in 1985.
At the bottom half of the paper, some general trends currently concerned with respect to CFC problems will be discussed. The developments of CFC alternatives, i.e., stratospherically safe refrigerants, and their practical applications in different fields of refrigeration and air-conditioning technology are one of the most urgent tasks for scientists and engineers all over the world so as to overcome the global environmental issues on the ozone layer depletion in the stratosphere as well as on the green-house effect in the troposphere. A currently ongoing research project on thermophysical properties of environmentally-acceptable new refrigerants will be thus reviewed in detail in the present paper.
An emphasis is given to the most up-dated results due to an extensive research project partially supported by the Japanese Association of Refrigeration (JAR) on the occasion of its 60th anniversary of foundation celebrated in 1985.
At the bottom half of the paper, some general trends currently concerned with respect to CFC problems will be discussed. The developments of CFC alternatives, i.e., stratospherically safe refrigerants, and their practical applications in different fields of refrigeration and air-conditioning technology are one of the most urgent tasks for scientists and engineers all over the world so as to overcome the global environmental issues on the ozone layer depletion in the stratosphere as well as on the green-house effect in the troposphere. A currently ongoing research project on thermophysical properties of environmentally-acceptable new refrigerants will be thus reviewed in detail in the present paper.
목차
Abstract
Introduction
Importance of Thermophysical Property Studies
Thermophysical Properties of NARBs
Thermophysical Property Research on CFC Alternatives
Concluding Remarks
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