Results 41 to 50 of about 824,135 (227)
Parameter Analysis of Savonius Hydraulic Turbine Considering the Effect of Reducing Flow Velocity
Energies, 2019 The Savonius-type hydraulic turbine, mainly known for its good self-starting properties and simple structure, not only has energy capturing characteristics but also has a certain effect on flow velocity reduction.
Jia Yao +4 more
semanticscholar +1 more source
Hydraulic loss analysis in a pump-turbine with special emphasis on local rigid vortex and shear
The Physics of Fluids, 2022 Since the pump as turbine (PAT) is increasingly employed in energy storage, improving efficiency in both pump and turbine modes is required for economic benefits.
Zhiyi Yuan +3 more
semanticscholar +1 more source
Energy Flexibilization and Demand Response for a Novel Decentralized Power‐to‐Methanol Process
Chemie Ingenieur Technik, EarlyView.This study presents the results of an optimization framework for the scheduling of a Power‐to‐methanol process coupled with an electrolyser, renewable energy sources and a battery. The optimal dynamic operating schedule is computed with different configurations and boundary conditions, showing the advantages of flexible operation.
Max Kollmer +5 more
wiley +1 more source
Application and analysis of hydraulic wind power generation technology
Energy Strategy Reviews, 2023 With the increasing installed capacity of wind power, higher requirements are put forward for the quality of wind power, but the randomness and intermittency of wind power seriously affect its quality and the stability of the power grid.
Keyi Liu +6 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley +1 more source
Hydraulic Oscillation and Instability of A Hydraulic System with Two Different Pump-Turbines in Turbine Operation [PDF]
Water, 2019 Hydraulic oscillation mainly reveals the undesirable pressure fluctuations which can cause catastrophic failure of any hydraulic system. The behavior of a hydraulic system equipped with two different pump-turbines was investigated through hydraulic oscillation analysis to demonstrate severe consequences induced in turbine operation, including S-shaped ...
Sunit Palikhe +2 more
openaire +1 more source
Energies, 2016 Pitch Control plays a significant role for a large wind turbine. This study investigates a novel robust hydraulic pitch control system of a large wind turbine.
Ching-Sung Wang, Mao-Hsiung Chiang
doaj +1 more source
Linear Parameter-Varying Model Predictive Control for Hydraulic Wind Turbine
Actuators, 2022 Wind speed uncertainty and measurement noise affect the control effect in hydraulic wind turbine systems. This paper proposes a model predictive control (MPC) method with a dynamic Kalman filter (KF) based on a linear parameter-varying (LPV) model to ...
Bin Han, Hongyan Gao
doaj +1 more source
Energy Science &Engineering, EarlyView.This study integrates genetic algorithm optimization, CFD simulation, and experimental validation to identify the optimal runner geometry for a gravitational water vortex turbine. The combined approach enhances vortex stability and improves energy conversion efficiency, demonstrating strong agreement between predicted and measured performance ...
Zakaria. A. Mwakitwange, Adam Faraji
wiley +1 more source
Global Strategy Journal, EarlyView.Abstract Research Summary The rise of emerging market lead firms (LFs) in global value chains (GVCs) challenges the prevailing view that only multinational corporations (MNCs) from advanced economies lead systems integration, design, and innovation activities.
Yuanyuan Wu, Paola Perez‐Aleman
wiley +1 more source