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  • Open Access

    REVIEW

    A Review of Methods for “Pump as Turbine” (PAT) Performance Prediction and Optimal Design

    Xiao Sun1, Huifan Huang1, Yanjuan Zhao2,*, Lianghuai Tong3,*, Haibin Lin3, Yuliang Zhang4

    FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.6, pp. 1261-1298, 2025, DOI:10.32604/fdmp.2025.064329 - 30 June 2025

    Abstract The reverse operation of existing centrifugal pumps, commonly referred to as “Pump as Turbine” (PAT), is a key approach for recovering liquid pressure energy. As a type of hydraulic machinery characterized by a simple structure and user-friendly operation, PAT holds significant promise for application in industrial waste energy recovery systems. This paper reviews recent advancements in this field, with a focus on pump type selection, performance prediction, and optimization design. First, the advantages of various prototype pumps, including centrifugal, axial-flow, mixed-flow, screw, and plunger pumps, are examined in specific application scenarios while analyzing their suitability… More >

  • Open Access

    ARTICLE

    Transient Experiments on a Prototype Pump with an Atypical Open Impeller for Different Discharge Valve Openings

    Xiao Sun1, Huifan Huang1, Yuliang Zhang2, Lianghuai Tong3,*, Xiaowei Xu2, Xiaoqi Jia4, Litao Ou5

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.10, pp. 2251-2264, 2024, DOI:10.32604/fdmp.2024.050997 - 23 September 2024

    Abstract In order to obtain the transient characteristics of a low-speed centrifugal pump during the start-up and shutdown stages, dedicated experimental tests were conducted with eight different valve opening conditions. The Pearson correlation coefficient was used to reveal the linear correlation between variables. According to the results, the stable rotational speed decreases with increasing valve opening (rotational speed decreases from approximately 1472 to 1453 r/min), while the stable shaft power exhibits an increasing trend (shaft power increases from approximately 0.242 to 0.390 kW). The stable time and zeroing time of each parameter during start-up and shutdown More >

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