Results 41 to 50 of about 60,227 (266)

Inexactness of the Hydro-Thermal Coordination Semidefinite Relaxation

, 2017
Hydro-thermal coordination is the problem of determining the optimal economic dispatch of hydro and thermal power plants over time. The physics of hydroelectricity generation is commonly simplified in the literature to account for its fundamentally ...
Martins, L. S. A., Paredes, M.
core   +1 more source

Exploring and contextualizing public opposition to renewable electricity in the United States [PDF]

, 2009
This article explores public opposition to renewable power technologies in the United States. It begins by discussing the genesis of environmental ethics, or how some Americans have come to place importance on the protection of the environment and ...
Allen, Anders, Awerbuch, Barbour, Barclay, Bauen, Benjamin Sovacool, Berinstein, Bishnu, Boone, Carson, Coburn, Devine-Wright, Devine-Wright, Diesendorf, Duffield, Elton, Fielding, Flavin, Gagnon, Green, Kagel, Kahn, Kaplan, Karmis, Keating, Lee, Leopold, Mahapatra, Mohai, Nash, Norland, Ottaviano, Pasqualetti, Pasqualetti, Pater, Podlas, Roth, Sovacool, Sovacool, Sundqvist, Swartz, Thoreau, Upham, Upham   +44 more
core   +2 more sources

Nonlinear mathematical model of hydroelectric power plant

Journal of Energy - Energija, 2022
Mathematical and simulation models enable hydroelectric power unit dynamic behavior analysis using computers. In this paper, nonlinear mathematical models of all elements in hydroelectrical power plant are detailed described. Basic elements of hydroelectric power unit are water supply tunnel, surge tank, penstock, water turbine and synchronous ...
Baškarad, Tomislav, Kuzle, Igor, Tešnjak, Sejid   +2 more
openaire   +3 more sources

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

Chemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn, Michael Libuda, Thomas Meyer, Christian Hoffmann, Jens‐Uwe Repke, Stefan Elbel   +5 more
wiley   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

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

Improvement of the Work of a Small Derivative Hydro-Electrostation by Water Treatment by Hydrocyclones

Proceedings of the International Conference on Applied Innovations in IT, 2019
The relevance of the study lies in the fact that in the common derivation schemes of hydroelectric power plants, protection against bottom and bottom sediments is carried out in water inlets, and water is cleaned from dangerous fractions of sediments in ...
Zhuzbay Kassymbekov, Nassipkul Dyussembekova, Galymzhan Kassymbeko   +2 more
doaj   +1 more source

From Ship to Shore: A Review of Vessel‐To‐Grid Bidirectional Charging for Sustainable Maritime Transport

EcoEnergy, EarlyView.
As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor, Tamer Kamel, Sarah Fear, Lee J. Durndell   +3 more
wiley   +1 more source

A Reservoir Operation Policy Using Inter-Basin Water Transfer for Maximizing Hydroelectric Benefits in Brazil

Energies, 2020
The Hydrothermal Coordination problem consists of determining an operation policy for hydroelectric and thermoelectric plants within a given planning horizon.
Anderson Passos de Aragão, Patrícia Teixeira Leite Asano, Ricardo de Andrade Lira Rabêlo   +2 more
doaj   +1 more source

The Optimization of Energy Supply Systems by Sequential Streamflow Routing Method and Invasive Weed Optimization Algorithm; Case Study: Karun II Hydroelectric Power Plant [PDF]

Journal of Hydraulic Structures, 2017
Among the major sources of energy supply systems, hydroelectric power plants are more common. Energy supply during peak hours and less environmental issues are some of the most important advantages of hydroelectric power plants.
Hamid Goharnejad, Majid Mohamadi Naser, Mahmoud Zakeri Niri   +2 more
doaj   +1 more source

Environmental Policy Without Implementation? A Review of Factors Contributing to Implementation Gaps in Low‐ and Middle‐Income Countries

Environmental Policy and Governance, EarlyView.
ABSTRACT The sound formation of robust environmental policies is increasingly important for low‐ and middle‐income countries (LMICs) to achieve their national objectives and international commitments. However, policy implementation can be complex, and environmental policies may not be prioritised given other critical socio‐economic development issues ...
Rebecca K. M. Clube, Julia Tomei
wiley   +1 more source