| Title |
A Study on the Refrigerant Characteristics of the HFC-152a and Azeotrope Mixed with CF3I in Air Conditioners |
| Authors |
이종인 ; 하옥남 ; 홍경한 ; 권일욱 ; 박찬수 ; 윤갑식 |
| Keywords |
Coefficient of performance ; 성능계수 ; GWP ; 온난화지수 ; ODP ; 오존파괴지수 ; Automobile air-conditioners ; 자동차 에어컨 |
| Abstract |
In these days, environmental concerns have been increased throughout the industry and community worldwide. To prevent the ozone depletion, ozone depletion potential of a refrigerant must be zero. Simultaneously, a refrigerant with low GWP (global warming potential) is very demanding to induce green house effect. Chlorine-free HFC-134a is a refrigerant widely used for automotive air-conditioning system because its destruction potential is ecologically zero. Although HFC-134a has no ozone depletion potential, its global warming potential is so high that it is not considered as a perfect alternative refrigerant that is acceptable for long-term use. In this paper, experimental measurement has been carried out to analyze the performance characteristics of automotive air-conditioning system using HFC- 152a, which has low GWP and zero ODP. Also mixed refrigerant that is composed of HFC- 152a and CF3I was applied to investigate an alternative possibility for the automotive air- conditioning system. As a result of this study, we could draw following conclusions; With respect to the variation of the rotational speed of compressor, outside air temperature and flow rate, the heat amount of evaporator and compressor and performance coefficient was varied. |