Results 31 to 40 of about 165,252 (299)

Multi-label machine learning for power forecasting of a grid-connected photovoltaic solar plant over multiple time horizons

Scientific Reports
Because of solar power’s inherent intermittency and stochastic nature, accurate photovoltaic (PV) generation forecasting is critical for the planning and operation of PV-integrated power systems.
Amal A. Hassan, Doaa M. Atia, Hanaa T. El-Madany, Fatma ElGhannam   +3 more
doaj   +1 more source

Multijunction solar cell parameter estimation based on metaheuristic algorithms

Results in Engineering
Parameter estimation in MJSC achieved accurate energy output modeling under diverse environmental conditions. This issue maximizes energy yield and facilitates early fault detection by identifying performance deviations, enabling timely maintenance, and ...
Marwa M. Elzalabani, Doaa M. Atia, Aref Y. Eliwa, Belal A. Abou Zalam, Mahmoud S. AbouOmar   +4 more
doaj   +1 more source

A High Power-Conversion-Efficiency Voltage Boost Converter with MPPT for Wireless Sensor Nodes

Sensors, 2021
A high power-conversion-efficiency voltage boost converter with MPPT for wireless sensor nodes (WSNs) is proposed in this paper. Since tiny wireless sensor nodes are all over complex environments, an efficient power management system (PMS) must be ...
Xiwen Zhu, Qiang Fu, Ruimo Yang, Yufeng Zhang   +3 more
doaj   +1 more source

A combined optical, thermal and electrical performance model of a Building Integrated Photovoltaic/Thermal Concentrator (BIPVTC) [PDF]

, 2011
The electrical output of concentrating photovoltaic devices is significantly affected by the temperature of the photovoltaic cells. The ability to actively cool photovoltaic cells under concentrated radiation allows their electrical efficiency to be ...
Anderson, Timothy Nicholas, Carson, James K., Duke, Mike, Künnemeyer, Rainer   +3 more
core   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

Advanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source

Optimizing microgrid integration of renewable energy for sustainable solutions in off/on-grid communities

Journal of Electrical Systems and Information Technology
Rising energy costs, climate change impacts, and transmission losses have increased demand for renewable energy sources and decentralized solutions. As more people seek smart living and working environments, integrated smart microgrids powered by hybrid ...
Amal A. Hassan, Doaa M. Atia
doaj   +1 more source

Analysis of Chromatic Aberration Effects in Triple-Junction Solar Cells Using Advanced Distributed Models [PDF]

, 2011
The consideration of real operating conditions for the design and optimization of a multijunction solar cell receiver-concentrator assembly is indispensable.
Algora del Valle, Carlos, Espinet González, Pilar, García Vara, Iván, Rey-Stolle Prado, Ignacio   +3 more
core   +2 more sources

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

Energy management of integrated PV/thermal systems in industrial applications

Journal of Electrical Systems and Information Technology
Commercial solar cells currently exhibit lower efficiency in converting solar radiation into electricity. A considerable amount of the absorbed energy is lost to the environment during the conversion process into electric power.
Heba S. Aggour, Doaa M. Atia
doaj   +1 more source

Self-Powered Au/ReS₂ Polarization Photodetector with Multi-Channel Summation and Polarization-Domain Convolutional Processing

Sensors
Polarization information is essential for material identification, stress mapping, biological imaging, and robust vision under strong illumination, yet conventional approaches rely on external polarization optics and active biasing, which are bulky ...
Ruoxuan Sun, Guowei Li, Zhibo Liu
doaj   +1 more source