한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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원심압축기 베인 디퓨저에서의 선회실속 특성

Characteristics of Rotating Stall in a Centrifugal Compressor with Vaned Diffuser

  • 이두열 (KIST 열 유동제어연구센터) ;
  • 강창식 (KIST 열 유동제어연구센터) ;
  • 신유환 (KIST 열 유동제어연구센터) ;
  • 김광호 (KIST 열 유동제어연구센터)
  • 발행 : 2002.03.01
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초록

In this study, the instability of a centrifugal compressor with vaned diffuser was investigated. During unstable operation of the test compressor, pressure fluctuations at different diffuser radius ratios were measured by using high frequency pressure transducers. Two different types of stall, mild and deep stalls, were observed alternately and irregularly at some flow rates where the compressor performance was steeply deteriorated. In this transient zone, the size of rotating stall cell was estimated through the wavelet transform analysis. It was about 45 percents of rotor circumferential space at 300 rpm and not dependent on flow rate.

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참고문헌

  1. Frigne, P., and Van Den Braembussche, R., 1984, "Distinction Between Different Types of Impoller and Diffuser Rotating Stall in a Centrifugal Compressor with Vaneless Diffuser," J. of Eng. for Gas Turbines and Power, Vol. 106, pp. 469-474.
  2. 신유환, 김광호, 손병진, 1998, "원심압축기 깃 없는 디퓨저에서의 선회실속에 관한 실험적 연구", 대한기계학회논문집 B권, 제22권, 제2호, pp. 153-161.
  3. Seidel, U, Chen, J., Jin, D., and Rautengerg, M., 1991, "Experimental Investigation of Rotating Stall Behaviour Influenced by Varying Design and Operation Parameters of Centrifugal Compressors," 91-YOKOHAMA-IGTC-93, pp. I-89-I-98.
  4. Shin, Y.H., Kim, K.H., K.H., and Son, B.J., 1998, "An Experimental Study on the Development of a Reverse Flow Zone in a Vaneless Diffuser," JSME International J., Series B, Vol. 41, No.3, pp. 546 -555. https://doi.org/10.1299/jsmeb.41.546
  5. Inoue, M., Kuroumaru, M., Tanino, T., Yoshida, S., and Furukawa, M., 2001, "Comparative Studies on Short and Long Length-Scale Stall Cell Propagating in an Axial Compressor Rotor," J. of Turbomachinery, Vol. 123, pp. 24-32. https://doi.org/10.1115/1.1326085
  6. 강정식, 강신형, 2000, "웨이블렛을 이용한 원심압축기 서지 현상의 스케일 해석," The First National Congress on Fluids Engineering, Muju, pp. 575-578.
  7. Farge, M., 1992, "Wavelet Transforms and Their Applications to Turbulence," Annu. Rev. Fluid Mech., Vol. 24, pp. 395-457.