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학술저널

CFC화합물과 대체 냉매간의 성능비교에 관한 연구

A Study on the Performance Comparison between CFC Compound and Alternative Refrigerants

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The purpose of this project is to find the best alternative refrigerants by analyzing the temperature and pressure distributions of 4 kinds of refrigerants in Copper tube. Four refrigerants are commonly used CFC-12 and three alternatives which are HCFC-22, HFC-134a and HFC-152a. The pressure and temperature variations along flow direction in tube are numerically analyzed by a commercial thermalfluid code, PHOENICS. The results say that HFC-134a has the smallest pressure drop along flow direction among four refrigerents and that CFC-12 shows the largest temperature decrease as it flows in tube but HFC-134a also has very same trend of temperature variation with CFC-12 and so HFC-134a is the best alternative, while considering the variations of pressure and temperature.

Ⅰ. 서 론

Ⅱ. 이론적 배경

Ⅲ. 수치해석 결과

Ⅳ. 결 론

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