Reconciling compressor performance differences for varying ambient inlet conditions

Natalie R. Smith, Reid Adam Berdanier, John C. Fabian, Nicole L. Key

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    Careful experimental measurements can capture small changes in compressor total pressure ratio (TPR), which arise with subtle changes in an experiment's configuration. Research facilities that use unconditioned atmospheric air must account for changes in ambient compressor inlet conditions to establish repeatable performance maps. A unique dataset from a three-stage axial compressor has been acquired over the duration of 12 months in the Midwest U.S., where ambient conditions change significantly. The trends show a difference in compressor TPR measured on a cold day versus a warm day despite correcting inlet conditions to sea level standard day. To reconcile these differences, this paper explores correcting the compressor exit thermodynamic state, Reynolds number effects, and variations in rotor tip clearance (TC) as a result of differences in thermal growth.

    Original languageEnglish (US)
    Article number122603
    JournalJournal of Engineering for Gas Turbines and Power
    Volume137
    Issue number12
    DOIs
    StatePublished - Dec 1 2015

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    Compressors
    Sea level
    Reynolds number
    Rotors
    Thermodynamics
    Air
    Experiments

    All Science Journal Classification (ASJC) codes

    • Nuclear Energy and Engineering
    • Fuel Technology
    • Aerospace Engineering
    • Energy Engineering and Power Technology
    • Mechanical Engineering

    Cite this

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    abstract = "Careful experimental measurements can capture small changes in compressor total pressure ratio (TPR), which arise with subtle changes in an experiment's configuration. Research facilities that use unconditioned atmospheric air must account for changes in ambient compressor inlet conditions to establish repeatable performance maps. A unique dataset from a three-stage axial compressor has been acquired over the duration of 12 months in the Midwest U.S., where ambient conditions change significantly. The trends show a difference in compressor TPR measured on a cold day versus a warm day despite correcting inlet conditions to sea level standard day. To reconcile these differences, this paper explores correcting the compressor exit thermodynamic state, Reynolds number effects, and variations in rotor tip clearance (TC) as a result of differences in thermal growth.",
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    Reconciling compressor performance differences for varying ambient inlet conditions. / Smith, Natalie R.; Berdanier, Reid Adam; Fabian, John C.; Key, Nicole L.

    In: Journal of Engineering for Gas Turbines and Power, Vol. 137, No. 12, 122603, 01.12.2015.

    Research output: Contribution to journalArticle

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