Correlation of centrifugal pump vibration to unsteady flow under variable motor speed

    Research output: Chapter in Book/Conference paperOther chapter contribution

    2 Citations (Scopus)

    Abstract

    © 2014 AFM, EDP Sciences. Although condition monitoring of centrifugal pump bearings to infer faults is common practice, the relationship between a pump's vibration level and the unsteady flow within has not been extensively researched. The latter, however potentially provides the foundations for further developments in, pump design to increase performance, advanced predictive maintenance programs and, vibration monitoring techniques that can permit inference of pump efficiency states. This paper investigates the correlation between pump vibration and unsteady flow at different motor speeds. A test rig and a numerical CFD model were employed. It was found that flow-induced vibration in general increases with pump speed and was clearly linked to pump efficiency. It therefore seems possible to construct a model to deduce a pump's efficiency from its pressure and vibration levels, if the efficiency curve is known a priori. However, as the vibration levels are also dependent on the system's structural natural frequencies and modes, it seems that knowledge of these may also be needed in some instances. The work confirms that utilising a variable speed pump at lower pump speeds allows greater deviations from the design BEP without jeopardising the safety of the pump and should be considered for industrial use.
    Original languageEnglish
    Title of host publicationMechanics and Industry
    Pages525-534
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    Centrifugal pumps
    Unsteady flow
    Pumps
    Bearings (structural)
    Condition monitoring
    Natural frequencies
    Computational fluid dynamics
    Monitoring

    Cite this

    @inbook{209435c0435145d4be53eeccdc09535a,
    title = "Correlation of centrifugal pump vibration to unsteady flow under variable motor speed",
    abstract = "{\circledC} 2014 AFM, EDP Sciences. Although condition monitoring of centrifugal pump bearings to infer faults is common practice, the relationship between a pump's vibration level and the unsteady flow within has not been extensively researched. The latter, however potentially provides the foundations for further developments in, pump design to increase performance, advanced predictive maintenance programs and, vibration monitoring techniques that can permit inference of pump efficiency states. This paper investigates the correlation between pump vibration and unsteady flow at different motor speeds. A test rig and a numerical CFD model were employed. It was found that flow-induced vibration in general increases with pump speed and was clearly linked to pump efficiency. It therefore seems possible to construct a model to deduce a pump's efficiency from its pressure and vibration levels, if the efficiency curve is known a priori. However, as the vibration levels are also dependent on the system's structural natural frequencies and modes, it seems that knowledge of these may also be needed in some instances. The work confirms that utilising a variable speed pump at lower pump speeds allows greater deviations from the design BEP without jeopardising the safety of the pump and should be considered for industrial use.",
    author = "J. Mele and Andrew Guzzomi and Jie Pan",
    year = "2014",
    doi = "10.1051/meca/2014051",
    language = "English",
    isbn = "22577777",
    pages = "525--534",
    booktitle = "Mechanics and Industry",

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    Correlation of centrifugal pump vibration to unsteady flow under variable motor speed. / Mele, J.; Guzzomi, Andrew; Pan, Jie.

    Mechanics and Industry. 2014. p. 525-534.

    Research output: Chapter in Book/Conference paperOther chapter contribution

    TY - CHAP

    T1 - Correlation of centrifugal pump vibration to unsteady flow under variable motor speed

    AU - Mele, J.

    AU - Guzzomi, Andrew

    AU - Pan, Jie

    PY - 2014

    Y1 - 2014

    N2 - © 2014 AFM, EDP Sciences. Although condition monitoring of centrifugal pump bearings to infer faults is common practice, the relationship between a pump's vibration level and the unsteady flow within has not been extensively researched. The latter, however potentially provides the foundations for further developments in, pump design to increase performance, advanced predictive maintenance programs and, vibration monitoring techniques that can permit inference of pump efficiency states. This paper investigates the correlation between pump vibration and unsteady flow at different motor speeds. A test rig and a numerical CFD model were employed. It was found that flow-induced vibration in general increases with pump speed and was clearly linked to pump efficiency. It therefore seems possible to construct a model to deduce a pump's efficiency from its pressure and vibration levels, if the efficiency curve is known a priori. However, as the vibration levels are also dependent on the system's structural natural frequencies and modes, it seems that knowledge of these may also be needed in some instances. The work confirms that utilising a variable speed pump at lower pump speeds allows greater deviations from the design BEP without jeopardising the safety of the pump and should be considered for industrial use.

    AB - © 2014 AFM, EDP Sciences. Although condition monitoring of centrifugal pump bearings to infer faults is common practice, the relationship between a pump's vibration level and the unsteady flow within has not been extensively researched. The latter, however potentially provides the foundations for further developments in, pump design to increase performance, advanced predictive maintenance programs and, vibration monitoring techniques that can permit inference of pump efficiency states. This paper investigates the correlation between pump vibration and unsteady flow at different motor speeds. A test rig and a numerical CFD model were employed. It was found that flow-induced vibration in general increases with pump speed and was clearly linked to pump efficiency. It therefore seems possible to construct a model to deduce a pump's efficiency from its pressure and vibration levels, if the efficiency curve is known a priori. However, as the vibration levels are also dependent on the system's structural natural frequencies and modes, it seems that knowledge of these may also be needed in some instances. The work confirms that utilising a variable speed pump at lower pump speeds allows greater deviations from the design BEP without jeopardising the safety of the pump and should be considered for industrial use.

    U2 - 10.1051/meca/2014051

    DO - 10.1051/meca/2014051

    M3 - Other chapter contribution

    SN - 22577777

    SP - 525

    EP - 534

    BT - Mechanics and Industry

    ER -