Results 11 to 20 of about 69,897 (260)
Journal of Mechatronics, Electrical Power, and Vehicular Technology, 2022 The use of a pump as opposed to a turbine/pump as turbine (PAT) for off-grid electrification applications is one of the important ways to be considered in efforts to equalize electrical energy in Indonesia.
Sarid Mejiartono +2 more
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Investigations on static and dynamic properties of liquid annular seals by a new transient numerical method with circular whirl model [PDF]
AIP AdvancesAnnular seals are employed in centrifugal pumps to inhibit leakage for reducing the effect of leaking fluid on the main flow. However, the seals generate fluid excitation forces while controlling the leakage flow, which seriously compromises the ...
Fengqin Li +6 more
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Performance of a centrifugal pump running in inverse mode [PDF]
, 2004 This paper presents the functional characterization of a centrifugal pump used as a turbine. It shows the characteristics of the machine involved at several rotational speeds, comparing the respective flows and heads.
Engeda A. +5 more
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Hydrodynamic optimization of pump-turbine runner [PDF]
E3S Web of Conferences, 2023 The paper suggests the approach to automatic CFD-based optimization of the pump-turbine runner. An in-house 3D flow solver CADRUN is used for the solution of steady-state RANS equations and evaluation of objective functions in representative operating ...
Chirkov Denis +4 more
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The acceleration effect of pump as turbine system during starting period
Scientific Reports, 2023 In order to reveal the influence of starting acceleration on starting process of a pump as turbine system, this paper carries out a numerical calculation of the three-dimensional viscous unsteady flow of pump as turbine circulating piping system under ...
Yu-Liang Zhang, Jin-Fu Li, Zu-Chao Zhu
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Energies, 2022 The heat pump system has been widely used in residential and commercial applications due to its attractive advantages of high energy efficiency, reliability, and environmental impact.
Abbas Aghagoli +2 more
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Internal Flow Phenomena of Two-Way Contra-Rotating Axial Flow Pump-Turbine in Pump Mode under Variable Speed [PDF]
Journal of Applied Fluid Mechanics, 2022 This paper investigated the variable speed operation of a two-way contra-rotating axial flow pump–turbine in pump mode. When counter-rotating impellers operate at the same speed, a significant difference exists in the shaft power of the two impellers ...
C. An +5 more
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Hydrodynamic and experimental characterization of pumps as turbines
Dyna, 2023 To estimate the performance, efficacy, modes of operation, hydrodynamic instabilities, and methodologies for harnessing energy from the pump as turbine (PAT), it is necessary to characterize these hydraulic turbomachines in all their modes of operation ...
Daniel Felipe Tobón-Espinosa +3 more
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Experimental tests of the operating conditions of a micro gas turbine device [PDF]
, 2015 The aim of this work is to analyze the performance of a commercial micro gas turbine, focusing on the analysis of the fuel consumption and the outlet compressor and turbine temperature at various rpm, and to evaluate and compare the efficiency of the ...
CAPATA, Roberto
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Research on configuration and performance of water ramjet pressurized water intake system
Xibei Gongye Daxue Xuebao, 2023 Water ramjet is the most ideal power propulsion device for high-speed underwater weapons. However, failure to start it at low-speed makes it hard for the engine to be widely used.
YANG Hao +5 more
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