Results 1 to 10 of about 73,194 (191)

Stability Analysis of a Run-of-River Diversion Hydropower Plant with Surge Tank and Spillway in the Head Pond [PDF]

open access: yesThe Scientific World Journal, 2014
Run-of-river hydropower plants usually lack significant storage capacity; therefore, the more adequate control strategy would consist of keeping a constant water level at the intake pond in order to harness the maximum amount of energy from the river ...
José Ignacio Sarasúa   +5 more
doaj   +9 more sources

Hydraulic Transients in the Long Diversion-Type Hydropower Station with a Complex Differential Surge Tank [PDF]

open access: yesThe Scientific World Journal, 2014
Based on the theory of hydraulic transients and the method of characteristics (MOC), a mathematic model of the differential surge tank with pressure-reduction orifices (PROs) and overflow weirs for transient calculation is proposed.
Xiaodong Yu, Jian Zhang, Ling Zhou
doaj   +2 more sources

Nonlinear hydro turbine model having a surge tank [PDF]

open access: yesMathematical and Computer Modelling of Dynamical Systems, 2013
This article models a hydro turbine based on the dynamic description of the hydraulic system having a surge tank and elastic water hammer. The dynamic of the hydraulic system is transformed from transfer function form into the differential equation model in relative value.
Zeng, Y.   +4 more
openaire   +6 more sources

Analysis and research on water hammer protection measures based on KY PIPE for long distance pumping station water transmission engineering with pump stoppage [PDF]

open access: yesScientific Reports
In the process of long-distance pressurized pipeline water transmission, in addition to the problem of water hammer hazards that can easily occur in the pipeline, the safety of the pipeline before the pump also presents hidden dangers.
Zhen Zhou   +6 more
doaj   +2 more sources

Investigation of partially expanded surge tank with self-adaptive auxiliary system controlling water hammer in pipelines

open access: yesEngineering Science and Technology, an International Journal, 2023
Intensive water hammer can cause pipe collapse in long-distance water transfer pipeline systems. Pressure control facilities like surge tank have been widely applied to help control the extensive pressure fluctuations.
Wuyi Wan   +5 more
doaj   +1 more source

Dimensionless Impedance Method for General Design of Surge Tank in Simple Pipeline Systems

open access: yesEnergies, 2022
The design of surge protection devices is a practical issue for the management of pressurized pipeline systems. Depending on the flow status, dimension, material, and fluid properties of a particular pipeline, the generation of hydraulic transients and ...
Sanghyun Kim, Dooyong Choi
doaj   +1 more source

Study on Sloshing Characteristics in a Liquid Cargo Tank under Combination Excitation

open access: yesJournal of Marine Science and Engineering, 2022
Sloshing is a common flow phenomenon in liquid cargo tanks and has a great negative impact on the stability and safety of ship navigation. It is important to understand the sloshing process of tanks under the excitation of complex external conditions for
Qiong Zhang, Bo Shui, Hanhua Zhu
doaj   +1 more source

A Novel Approach to the Improvement of the Hydropower Plants Protective Measures—Modelling and Numerical Analyses of the Semi-Pneumatic Surge Tank

open access: yesApplied Sciences, 2022
Adopting adequate operational and safety measures is a significant part of the investigation of transient processes of hydropower plants (HPPs), both throughout the design stage of prospective plants and throughout the planning stage of the HPPs ...
Jovan Ilić   +3 more
doaj   +1 more source

Nonlinear Modeling and Stability of a Doubly-Fed Variable Speed Pumped Storage Power Station with Surge Tank Considering Nonlinear Pump Turbine Characteristics

open access: yesEnergies, 2022
This paper investigates the nonlinear modeling and stability of a doubly-fed variable speed pumped storage power station (DFVSPSPS). Firstly, the mathematical model of DFVSPSPS with surge tank considering nonlinear pump turbine characteristics was ...
Nan Zhang   +5 more
doaj   +1 more source

Transient Simulation of Underground Pumped Storage Hydropower Plants Operating in Pumping Mode

open access: yesEnergies, 2020
The increasing penetration of variable renewable energies (VRE) in the European electricity mix requires flexible energy storage systems (ESS), such as pumped storage hydropower (PSH). Disused mining voids from deep closed mines may be used as subsurface
Javier Menéndez   +3 more
doaj   +1 more source

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