Results 81 to 90 of about 4,354 (263)

TURBINE EFFICIENCY DETERMINATION IN HYDROPOWER PLANTS - PRACTICAL APPLICATION FOR A CASCADE OF HYDROPOWER PLANTS

References: 1.    Prodanovic D., Ivetic D., Milivojevic N., Vojt P. Flow measurement methodology for low head and short intake bulb turbines - Iron Gate 2 case. In IGHEM 2022 proceedings, Grenoble, France, 2022. 2.    IEC 41 1991-11. Field acceptance tests to determine the hydraulic performance of hydraulic   turbines, storage pumps and pumps ...
Cristian Purece, Daniela Adriana Sima
openaire   +2 more sources

Nanocubes and Cuboctahedra: Entropic Stabilization Versus Thermal Segregation in Rock Salt‐ and Spinel‐Type Multinary Oxides from Spray‐Flame Synthesis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Spray‐flame synthesis enables highly flexible and scalable production of multinary and high‐entropy oxide nanoparticles due to high synthesis temperatures with subsequent quenching. Temperature‐dependent in situ diffraction of as‐synthesized materials clearly reveals entropy stabilization in rock salt lattices, while spinels—featuring tetrahedral and ...
Mohammed‐Ali Sheikh, Steven Angel, Sabrina Schleich, Leon Müller, Jan Ternieden, Hatem M. A. Amin, Christof Schulz, Hartmut Wiggers   +7 more
wiley   +1 more source

Small and Micro-Hydropower Plants Location by Using Geographic Information System

Proceedings, 2018
Small-scale hydropower plants (SHP), and in particular the micro-hydropower plants (MHP) and pico-hydropower plants (PHP), are considering as an alternative energy resource based on the hydroelectric potential available in urban water cycle because of ...
Eva Gómez-Llanos, Pablo Durán-Barroso, Juana Arias-Trujillo, Jose M. Ceballos-Martínez, Jesús A. Torrecilla-Pinero, Miguel Candel-Pérez   +5 more
doaj   +1 more source

Advances in Sulfur Cathodes for High‐Energy All‐Solid‐State Lithium Batteries With Sulfide Solid Electrolytes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes the key optimization strategies and challenges for all‐solid‐state lithium–sulfur batteries based on sulfide solid‐state electrolytes, covering electrolyte synthesis, cathode design, interface engineering, and industrialization considerations.
Yongsheng Gao, Hui Shao, Yuan Li, Baojuan Xi, Shenglin Xiong, Jinkui Feng   +5 more
wiley   +1 more source

Importance of Variable Turbine Efficiency in Run‐Of‐River Hydropower Design Under Deep Uncertainty

Water Resources Research
When less water is available, hydropower turbines are less efficient, or have to stop altogether. This reality is often neglected in recent work on the planning and operations of hydropower systems, despite widespread expected increases in drought ...
Veysel Yildiz, Solomon Brown, Charles Rougé   +2 more
doaj   +1 more source

Civil Society Advocacy and Climate Change in Kenya: The Question of “Local Voices” and Their “Amplification”

Environmental Policy and Governance, EarlyView.
ABSTRACT The role of civil society organizations (CSOs) in addressing climate change is acknowledged, but engagement with questions of voice remains limited, especially in the Global South. Addressing this, this paper zooms in on (International) nongovernmental organizations ((I)NGOs) and their collaborations with domestic CSOs in the Global South on ...
Margit van Wessel, Precious Akampurira
wiley   +1 more source

Assessment of the effects of microwave‐produced biodiesel blends on electric generator performance and emissions

Environmental Progress &Sustainable Energy, EarlyView.
Abstract Biodiesels are emerging as alternatives to diesel fuel. However, to be a feasible solution, biodiesels must meet strict criteria including high efficiency and minimal environmental impact. The current study focuses on evaluating ethyl ester biodiesel and its blends with diesel fuel to assess their potential.
Ilham Yahya, Fakher Hamdi, Mehrez Gassoumi, Tommaso Giannoni, Andrea Nicolini, Hakan Serhad Soyhan, Ridha Ennetta   +6 more
wiley   +1 more source

Challenges of Corrosion, Wear, Erosion, and Abrasion in Hydropower Plants: Materials, Modeling, and Mitigation Strategies

Engineering Transactions
The chemical, food processing, hydropower, thermal power, and oil industries are among the sectors that frequently face problems of erosion, abrasion, and corrosion. Pipelines, elbows, reducers, separators, tees, and seals are among the hydraulic devices
Harvinder Singh
doaj   +1 more source

Genetic Algorithm‐Driven Analysis of Gravitational Water Vortex Power Plant Runner Performance: A Comparative Study Integrating Experimental and Computational Fluid Dynamics

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

Use of Hydrogen Energy Storage to Stabilize Solar Power Output With an Energy Efficiency Analysis for European Union Member Countries

Energy Science &Engineering, EarlyView.
Photovoltaic solar power production can be stabilized using hydrogen energy storage. Gaseous hydrogen is produced, compressed, stored, and consumed in fuel cells to provide a constant power output. ABSTRACT Seasonal energy storage as compressed hydrogen offers a potential solution to balance the power grid as intermittent renewable energy sources are ...
Jure Voglar, Blaž Likozar
wiley   +1 more source