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김한영(Han-Young Kim),정봉철(Bong-Chul Chung),장시혁(Si-Hyuk Jang),김도영(Do-Young Kim) 대한설비공학회 2011 대한설비공학회 학술발표대회논문집 Vol.2011 No.7
The present study has been conducted to design a high efficiency impeller for a centrifugal chiller with the refrigerant R134a. In this study, we considered a harmony between impeller and diffuser in full load and part load condition. To get a high efficiency and reliability in suitable range, the numerical analyses were carried out at the various flow rate. A finally designed compressor was investigated experimentally to check the performance. The analysis data coincides with the test result of the compressor quite well and also the data in this study would be useful for an expanded capacity of an impeller to improve compressor efficiency.