Results 21 to 30 of about 9,244 (304)

Differential Impact of Climate Change on the Hydropower Economics of Two River Basins in High Mountain Asia

Frontiers in Environmental Science, 2020
Water stored in the form of snow and glaciers in the High Mountain Asia (HMA) region regulates the water supply, and resultant water-based economies, that support the livelihoods of millions of people. Trends in the seasonal and long-term melting of snow
Shruti K. Mishra, Thomas D. Veselka, Alexander A. Prusevich, Danielle S. Grogan, Richard B. Lammers, David R. Rounce, Syed H. Ali, Mark H. Christian   +7 more
doaj   +1 more source

Study on the Effect of the Guide Vane Opening on the Band Clearance Sediment Erosion in a Francis Turbine

Journal of Marine Science and Engineering, 2022
Sediment erosion is a negative phenomenon for the water turbine. The purpose of this paper is to study the effect of the guide vane opening on the particle motion and sediment erosion in the band chamber using the Euler–Lagrangian approach.
Xijie Song, Xuhui Zhou, Huating Song, Jianhua Deng, Zhengwei Wang   +4 more
doaj   +1 more source

Reservoir inflow predicting model based on machine learning algorithm via multi‐model fusion: A case study of Jinshuitan river basin

IET Cyber-systems and Robotics, 2021
Flood prevention and disaster mitigation have a great impact on people's lives and properties, and so it is urgent to realise high‐accuracy inflow predictions for flood early warning.
Wei Zhang, Hanyong Wang, Yemin Lin, Jianle Jin, Wenjuan Liu, Xiaolan An   +5 more
doaj   +1 more source

A varying comprehensive hydropower coefficient for medium/long-term operation of a single reservoir

Hydrology Research, 2020
In medium/long-term reservoir operation, the hydropower output is calculated from k × q × h, where q is the power discharge, h is the water head, and k is the comprehensive hydropower coefficient. k indicates the conversion efficiency from water power to
Wenting Gong, Pan Liu, Lei Cheng, He Li, Zhikai Yang   +4 more
doaj   +1 more source

Adjustable speed operation of a hydropower plant associated to an irrigation reservoir

, 2008
This paper deals with the issue of adjustable speed operation (ASO) of hydropower plants. The main idea of this technique is to allow the turbine speed to change in accordance with hydraulic conditions, thus improving the overall unit efficiency. General
Wilhelmi Ayza, José-Román, Pérez Díaz, Juan Ignacio, Maroto, Luis   +2 more
core   +2 more sources

HYDROPOWER PLANT

KNOWLEDGE - International Journal, 2019
Ocean waves are an immense, unused source of energy. Since global attention is nowadays constantly being drawn to the fact that the level of CO2 is rising, creating the so called “greenhouse effect”, and influencing further climate changes, the focus on generating electricity from renewable sources forces itself as an important area of future research.
openaire   +1 more source

Optimization of the operation mode of the Francis turbine based on flow status analysis and stability tests [PDF]

E3S Web of Conferences
To ensure the safe and efficient operation of Francis turbine units under the new situation, Wudongde Power Plant takes the No.1 unit as the research object.
Liao Xiangbo, Wang Tao, Liu Pan, Xie Xiongfei, Huang Xiaowen   +4 more
doaj   +1 more source

An investigation into the practical application of the physical principle to ensure the safety of hydraulic structures during the construction of Novokarachayevskaya small hydropower plants on the Kuban River [PDF]

E3S Web of Conferences
Many countries around the world have embraced small hydropower as a stable component of their energy sector. Small HPPs in Russia generate approximately 2.2 billion kWh/year, and experts estimate their technical potential to be around 382 billion kWh ...
Bakshtanin Alexander, Zhukova Tatiana
doaj   +1 more source

Hydrological and economical assessment of a run-of-river hydropower plant in the Dolomites

, 2022
reservedHydropower plants can play a significant role in the reduction of CO2 emissions. in this thesis work an hydropower plant project in the Dolomites will be analysed in order to make some hydrological and economical assessment. Comparisons regarding
FINETTI, MARCO
core  

Fault Diagnosis Method for Hydropower Station Measurement and Control System Based on ISSA-VMD and 1DCNN-BiLSTM

Energies
Sudden failures of measurement and control circuits in hydropower plants may lead to unplanned shutdowns of generating units. Therefore, the diagnosis of hydropower station measurement and control system poses a great challenge.
Lin Wang, Fangqing Zhang, Jiefei Wang, Gang Ren, Dengxian Wang, Ling Gao, Xingyu Ming   +6 more
doaj   +1 more source