The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Performance Evaluation of Compressor to Develop 500W Class Ultra-Micro Gas Turbine

500W급 초소형 가스터빈 개발을 위한 압축기 성능 평가

  • 서정민 (한국기계연구원 극한에너지기계연구실) ;
  • 박준영 (한국기계연구원 극한에너지기계연구실) ;
  • 최범석 (한국기계연구원 극한에너지기계연구실) ;
  • 박무룡 (한국기계연구원 극한에너지기계연구실)
  • Received : 2012.06.28
  • Accepted : 2012.10.23
  • Published : 2012.12.01
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Abstract

Performance evaluation of a compressor is conducted to develop 500W class ultra-micro gas turbine (UMGT) for power generation. The performance evaluation is essential to check the performance of the components of UMGT, a radial turbine, a centrifugal compressor, an angular combustor and a shaft, which have been already designed in previous researches. The purpose of this study is to introduce the development process of the performance testing equipments of the UMGT and to present the results of compressor performance test. For the performance evaluation of the compressor, two test equipments are developed and the initial test equipment uses commercial static air bearings with long shaft. In the improved test equipment, static air bearing is improved to increase rotating speed and compressed nitrogen gas is used for utility gas of the static air bearing to supply compressed air in a stable and steady way. To increase rotating speed to 320,000 rpm, 80% speed of design speed, compressed air is provided to the turbine. The performance map of the compressor with the 50%, 60%, 70%, 80% speed of design point is presented. The results of the performance test of compressor show a good agreement with the results of 3D CFD.

Keywords

References

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