대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제29권9호
  • /
  • Pages.971-978
  • /
  • 2005
  • /
  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지
DOI QR코드

DOI QR Code

입구 비 균일 유동이 원심압축기의 정상 및 비정상 성능에 미치는 영향

The Effect of Inlet Distorted Flow on Steady and Unsteady Performance of a Centrifugal Compressor

  • 강신형 (서울대학교 기계항공공학부) ;
  • 박재형 (서울대학교 대학원 기계항공공학부)
  • 발행 : 2005.09.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Effects of inlet distorted flow on performance, stall and surge are experimentally investigated for a high-speed centrifugal compressor. Tested results for the distorted inlet flow cases are compared with the result of the undistorted one. The performance of compressor is slightly deteriorated due to the inlet distortion. The inlet distortion does not affect the number of stall cell and the propagation velocity. It also does not change stall inception flow rate. However, as the distortion increases, stall starts at the higher flow rate for low speed and at the lower flow rate for high speed. For 50,000 rpm stall occurrs as the flow rate decreases, however disappears fur the smaller flow rate. This is due to the interaction of surge and stall. After the stall and surge interact, the number of stall cell decreases.

키워드

참고문헌

  1. Ariga, I., Kasai, N., Masuda, A., Watanabe, Y. and Watanabe, I., 1983, 'The Effect of Inlet Distortion on the Performance Characteristics of a Centrifugal Compressor,' Journal of Engineering for Power, Vol. 105, pp. 223-230 https://doi.org/10.1115/1.3227406
  2. Michelassi, V., 2001, 'Performances of Centrifugal Compressor Impellers in Steady and Unsteady Flow Regimes Under Inlet Distortion,' ASME 2001-GT-0325
  3. Shin, Y.H. and Kim, K.H., 1998, 'An Experimental Study on Rotating Stall in Vaneless Diffuser of a Centrifugal Compressor,' Transaction of KSME B, Vol. 22, No. 2, pp. 153-161
  4. Cho, S.K. and Kang, S.H., 1998, 'An Experimental Study on the Performance Evaluation of a Small-Sized Centrifugal Compressor,' Transaction of the KSME B, Vol. 22, No. 8, pp. 1052-1063
  5. Kang, S. H. and Kang, J. S., 1998, 'A Hybrid Method of Performance Prediction for Channel Diffusers,' Proceedings of the Forth KSME-JSME Fluids Engineering Conference, pp. 105-108
  6. Kang, J.S., 2002, 'Stall Inception in a Centrifugal Compressor,' Ph.D. Dessertation, Seoul National University
  7. Emmons, H. W. and Pearson, C. E., 1955, 'Compressor Surge and Stall Propagation,' ASME Transactions, Vol 77, pp. 455~469
  8. Frigne, P. and Van Den Braembussche, R. 1984, 'A Theoretical Model for Rotating Stall in the Vaneless Diffuser of a Centrifugal Compressor,' ASME Journal of Engineering for Gas Turbines and Power, Vol. 107, pp. 507-513 https://doi.org/10.1115/1.3239760