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신정관(Jungkwan Sin),김경훈(Kyunghoon Kim) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_3
Screw compressors with alternative refrigerants to protect ozone layer and minimize global warming are used for the air conditioning and process cooling, heat pump cycle, etc. Now the use of alternative refrigerants for chiller has been spread to all of air conditioning & refrigeration industry. Therefore the development of 80HP semi-hermetic screw refrigeration compressors has been accompanied with a test using alternative refrigerants. We tested the 150HP screw refrigeration compressor using R22, R 134a and R407C, and measured the cooling capacity & input power, volumetric efficiency and adiabatic efficiency by pressure ratio.
신정관,김경훈 慶熙大學校 레이저 工學硏究所 2002 레이저공학 Vol.13 No.-
Screw compressors with alternative refrigerants to protect ozone layer and minimize global warming are used for the air conditioning and process cooling, heat pump cycle, etc. Now the use of alternative refrigerants for chiller has been spread to all of air conditioning & refrigeration industry. Therefore the development of 80HP semi-hermetic screw refrigeration compressors has been accompanied with a test using alternative refrigerants. We tested the 80HP screw refrigeration compressor using R22, R134a and R407C, and measured the cooling capacity, input power, volumetric efficiency and adiabatic efficiency by pressure ratio.