Results 71 to 80 of about 23,232 (306)

Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motor

Results in Engineering
Stator asymmetric-paths winding of variable speed pump storage (VSPS) generator-motor can solve the problem of mismatch of unit speed, capacity and outlet voltage.
Weifu Lu, Zhonghua Gui, Jinbing Ni, Shuyang Xu   +3 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

South Australia pumped hydro energy storage (PHES) atlas

, 2017
South Australia is widely known as being the State with the largest proportion of variable renewable electricity (wind and solar PV) within Australia. This is expected to increase into the 50-100% range in the coming years.
Stocks, Matthew, Anderson, Kirsten, Lu, Bin, Blakers, Andrew, Nadolny, Anna   +4 more
core  

Influence of Different Power Factors and Slips on End Temperature Rise of Variable Speed Pumped Storage Machine

IET Electric Power Applications
Relative to the traditional pumped storage machines, the variable speed pumped storage machine (VSPSM) has strong frequency and voltage regulation capabilities by the AC excitation.
Weifu Lu, Xijun Zhou, Hongjin Guo, Zhonghua Gui, Xiaoxia Sun, Guorui Xu   +5 more
doaj   +1 more source

Research on anti-seepage grouting in completely weathered granite based on superfine materials

地质科技通报
Objective To solve the problems of "draught without slurry", poor groutability and slurry stability in the grouting process of completely weathered granite, a new composite grouting material is proposed in this paper to improve the anti-seepage and ...
Yongfeng LI, Yuhao GAO, Tianle CHEN, Juguang ZHONG, Yue HU, Jianzhong LI   +5 more
doaj   +1 more source

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source

Pumped-storage with small hydropower – an option? [PDF]

This paper contributes towards exploring the technical and institutional feasibility of small hydropower storage and pumped-storage schemes in Switzerland.
Mailler, Benoît, Heller, Philippe, Crettenand, Nicolas   +2 more
core  

Characteristics of Q-switched cladding-pumped ytterbium-doped fiber lasers with different high-energy fiber designs

, 2001
We theoretically and experimentally analyze Q-switched cladding pumped ytterbium-doped fiber lasers designed for high pulse energies. We compare the extractable energy from two high-energy fiber designs: (1) single- or few-moded low-NA large mode area ...
Alvarez-Chavez, J.A., Clarkson, W.A., Nilsson, J., Offerhaus, H.L., Turner, P.W., Renaud, Cyril C., Richardson, D.J., Grudinin, A.B.   +7 more
core   +1 more source

Pumped Hydroelectric Energy Storage as a Facilitator of Renewable Energy in Liberalized Electricity Market

, 2020
Besides many benefits deriving from the energy transition process, it is not uncommon for modern power systems to be faced with difficulties in their operation. The issues are dominantly related to the non-dispatchable nature of renewable energy sources (
Vladan Radulović, Lazar Šćekić, Saša Mujović   +2 more
core   +1 more source

AI-powered smart hydrological measurement using deep vision integrated with BeiDou high precision positioning

Discover Artificial Intelligence
Accurate hydrological measurement is essential for flood prediction. As per the early investigations, most modern methods struggle with significant limitations regarding precise monitoring and tracking ability.
Zhiqiang He, Dongxiang Zhang, Qian Wang
doaj   +1 more source