Results 31 to 40 of about 2,574 (142)
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
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
Effect of the Diameter of Pressure-Balance Pipe on Axial Hydraulic Thrust
Journal of Marine Science and Engineering, 2021 The axial hydraulic thrust has great influence on the safety and stability of a pump turbine. A common way to balance hydraulic thrust is to install a pressure-balance pipe, and the change in pipe diameter is one of the important factors affecting axial ...
Fei Zhang +3 more
doaj +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
Influence of rotational speed on performance of low specific speed hydraulic turbine in turbine mode
Advances in Mechanical Engineering, 2022 To study the influence of rotational speed on the performance of hydraulic turbine in turbine mode (T-type turbine), the performance of turbine at different rotational speed was predicted through theoretical analysis, based on the Navier-Stokes equation ...
Yanpin Li +6 more
doaj +1 more source
Interdisciplinary Materials, EarlyView.This review examines intelligent microsystems fabricated via Fs‐laser two‐photon polymerization, covering design, fabrication compatibility, and actuation methods. It highlights applications in actuators, sensors, micromachines, and soft microrobots, while stressing advances in materials, structures, and system integration.
Chang‐Xu Li +4 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
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT The operational reliability of thermal control circulation pumps is significantly restricted by the multi‐physics coupled environment. To reveal the vibration transmission mechanisms and dynamic response characteristics under multi‐field coupled excitations, a multi‐DOF coupled dynamic representation of the overall system, incorporating the ...
Jianfeng Luo +4 more
wiley +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
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How Tough a Passage? Nonnative Fish Entrainment Survivability at a Major Dam in the Western USA
River Research and Applications, EarlyView.ABSTRACT The Colorado River downstream of Glen Canyon Dam (GCD) in the southwest USA demonstrates anthropogenic modification including altered flow and temperature regimes and established nonnative species in upstream reservoirs. Water overallocation and megadrought are contributing to new potential invasion pathways for nonnative fishes through dam ...
Barrett Friesen +2 more
wiley +1 more source