Early stall warning technique for axial-flow compressors

Nobuyuki Tahara, Masahiro Kurosaki, Yutaka Ota, Eisuke Outa, Takurou Nakajima, Tomofumi Nakakita

    Research output: Contribution to journalArticle

    22 Citations (Scopus)

    Abstract

    This paper proposes a unique stall risk index based on pressure signals by high-response transducers on the casing wall at the rotor leading-edge location. The aim of the research is to explore the possibility of reducing current excessive stall margin requirement for compressor design based on the worst-case scenario. The index is generated by computing correlation degradation of pressure time histories of current and one revolution before over each blade pitch. Tests conducted on a single-stage low-speed compressor exhibits that the correlation diminishes significantly with proximity to stall, and the proposed technique might have the capability of generating a stall warning signal sufficiently in advance of spike inception. Extensive experiments on a research compressor show that the degree of the index degradation depends on various factors, such as flow coefficient, tip clearance, and rotor blade incidence. In order to obtain a reliable stall warning signal in practical use, these effects must be carefully examined.

    Original languageEnglish
    Pages (from-to)448-456
    Number of pages9
    JournalJournal of Turbomachinery
    Volume129
    Issue number3
    DOIs
    Publication statusPublished - 2007 Jul

    Fingerprint

    Axial-flow compressors
    Compressors
    Rotors
    Degradation
    Turbomachine blades
    Transducers
    Experiments

    ASJC Scopus subject areas

    • Mechanical Engineering

    Cite this

    Tahara, N., Kurosaki, M., Ota, Y., Outa, E., Nakajima, T., & Nakakita, T. (2007). Early stall warning technique for axial-flow compressors. Journal of Turbomachinery, 129(3), 448-456. https://doi.org/10.1115/1.2447948

    Early stall warning technique for axial-flow compressors. / Tahara, Nobuyuki; Kurosaki, Masahiro; Ota, Yutaka; Outa, Eisuke; Nakajima, Takurou; Nakakita, Tomofumi.

    In: Journal of Turbomachinery, Vol. 129, No. 3, 07.2007, p. 448-456.

    Research output: Contribution to journalArticle

    Tahara, N, Kurosaki, M, Ota, Y, Outa, E, Nakajima, T & Nakakita, T 2007, 'Early stall warning technique for axial-flow compressors', Journal of Turbomachinery, vol. 129, no. 3, pp. 448-456. https://doi.org/10.1115/1.2447948
    Tahara N, Kurosaki M, Ota Y, Outa E, Nakajima T, Nakakita T. Early stall warning technique for axial-flow compressors. Journal of Turbomachinery. 2007 Jul;129(3):448-456. https://doi.org/10.1115/1.2447948
    Tahara, Nobuyuki ; Kurosaki, Masahiro ; Ota, Yutaka ; Outa, Eisuke ; Nakajima, Takurou ; Nakakita, Tomofumi. / Early stall warning technique for axial-flow compressors. In: Journal of Turbomachinery. 2007 ; Vol. 129, No. 3. pp. 448-456.
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