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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.13 No.4
- 발행연도
- 2020.12
- 수록면
- 718 - 737 (20page)
- DOI
- 10.5293/IJFMS.2020.13.4.718
이용수
초록· 키워드
오류제보하기
Phenomena of surge degenerations and recoveries therefrom, which are related with so-called stall stagnation problems, are studied on the basis of numerical-experimental results by one-dimensional surge simulations on a single-stage axial flow compressor and a five-stage one. The phenomena are observed to show some different tendencies depending on the number of stages and the relative location of the compressor in the flowpath. The mass flow amplitudes, as the measure of the surge sizes, show behaviors of either continuous decrease in the amplitudes or discontinuous ones in the degeneration process. The latter is seen in the five-stage compressor and the former in the single-stage one. The difference in the tendency appears to be influenced by the levels of the compressor pressure-ratios and by the relative compressor locations also. Recoveries from seriously degenerated surge situations are observed to be achieved by opening the exit valve widely. It suggests that the stall margins available for alleviating significantly the pressure loads are indispensable in the situation. In the sense, it could be said that the stall stagnation or non-recoverable stall is the phenomenon related intimately with the surge degeneration tendency in the compressor-flowpath system characteristics, deteriorated furthermore by operational factors on-site, such as insufficient stall margins and limited flexibilities of operational procedures.
목차
Abstract
1. Introduction
2. General Behaviors of Compressor Surges
3. Data for Analysis of Surge Behaviors in Axial Flow Compressors
4. Surge Behaviors in the Single-stage Compressor, Comp11 at 10000rpm
5. Surge Behaviors in the Five-stage Compressor, Comp15 at 12000rpm
6. Recoveries from Seriously-Degenerated Surges
7. Summary and Considerations
8. Conclusion
References
참고문헌 (26)
참고문헌 신청
Fujii, S. / 1947 / Stability and Surge of Centrifugal Pumps and Flow Systems, (1) – (4) (in Japanese) / Transaction of Japan Society of Mechanical Engineers 13(44):184~191
Fujii, S. / 1947 / Stability and Surge of Centrifugal Pumps and Flow Systems, (1) – (4) (in Japanese) / Transaction of Japan Society of Mechanical Engineers 13(44):192~201
Fujii, S. / 1948 / Stability and Surge of Centrifugal Pumps and Flow Systems, (1) – (4) (in Japanese) / Transaction of Japan Society of Mechanical Engineers 14(48):12~17
Fujii, S. / 1948 / Stability and Surge of Centrifugal Pumps and Flow Systems, (1) – (4) (in Japanese) / Transaction of Japan Society of Mechanical Engineers 14(48):17~25
Nobuyuki Yamaguchi / 2016 / Genesis of Researches on Surges in Pumping Systems in Japan / International Journal of Fluid Machinery and Systems 9(1):17~27
Fujii, S. / 1947 / Stability and Surge of Centrifugal Pumps and Flow Systems, (1) – (4) (in Japanese) / Transaction of Japan Society of Mechanical Engineers 13(44):192~201
Fujii, S. / 1948 / Stability and Surge of Centrifugal Pumps and Flow Systems, (1) – (4) (in Japanese) / Transaction of Japan Society of Mechanical Engineers 14(48):12~17
Fujii, S. / 1948 / Stability and Surge of Centrifugal Pumps and Flow Systems, (1) – (4) (in Japanese) / Transaction of Japan Society of Mechanical Engineers 14(48):17~25
Nobuyuki Yamaguchi / 2016 / Genesis of Researches on Surges in Pumping Systems in Japan / International Journal of Fluid Machinery and Systems 9(1):17~27
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한국유체기계학회 학술대회 논문집
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서지 발현과 성능 예측을 위한 원심압축기 동적 거동 모델
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