Results 81 to 90 of about 17,076 (295)

Optical losses due to tracking on solar thermal collectors [PDF]

, 2016
For a wide range of operational temperatures, the solar thermal collectors can use optical concentration systems to optimize their efficiency. However, as optical concentration relies on direct solar radiation, it is necessary to use a solar tracker ...
Pujol-Nadal, Ramn, Peres, Bengt, Sallaberry, Fabienne, Fabienne Sallaberry, Ramón Pujol, Bengt Perers   +5 more
core   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

Advanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford, Anne Flechsig, Shilei Ding, Emir Karadža, Niklas Kercher, Tobias Goldenberger, Elisabeth Müller, Pietro Gambardella, Laura J. Heyderman, Aleš Hrabec   +9 more
wiley   +1 more source

Optimized Single-Axis Schedule Solar Tracker in Different Weather Conditions [PDF]

, 2020
Improving the efficiency of solar panels is the main task of solar energy generation. One of the methods is a solar tracking system. One of the most important parameters of tracking systems is a precise orientation to the Sun.
Aibolat Meiirkhanov, Nurzhigit Kuttybay, Yeldos Svanbayev, Gulbakhar Dosymbetova, Saad Mekhilef, Ahmet Saymbetov, Madiyar Nurgaliyev, Didar Tukymbekov   +7 more
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Effect of latitude and sky clearance factor on the effectiveness of solar tracking strategies

Cogent Engineering, 2019
Solar energy is gaining more grounds in the power generation industry. The effectiveness of solar tracking systems depends on the location’s latitude. In addition, sky clearance has an effect on the received solar radiation. Therefore, it is important to
N. Z. Al-Rawahi, N. Z. Al-Azri
doaj   +1 more source

Evaluation of a solar PV tracking prototype on tropic regions

Redes de Ingeniería, 2016
Nowadays climate change is a big concern for human society, due to our high dependence on fossil fuels. A great amount of research effort is focused in solar photovoltaic (PV) systems, particularly on the improvement of the conversion efficiency.
Cristian Manuel Agudelo Restrepo, Oscar Daniel Díaz Castillo, Yimy Edisson García Vera   +2 more
doaj   +1 more source

Grid-Connected Photovoltaic Systems with Single-Axis Sun Tracker: Case Study for Central Vietnam [PDF]

, 2020
Recently, the demand for small grid-connected photovoltaic (PV) systems has been rapidly increasing; this is due to the reduction in the costs of grid-connected storage systems as compared to those of the stand-alone ones. Notably, the performance of the
Thi Hong Nguyen, Nhu Y Do, Doyeon Heo, Rajender S. Varma, Su Shiung Lam, Van-Huy Nguyen, Soo Young Kim, Duc Minh Nguyen, Quyet Van Le, Mohammadreza Shokouhimehr, Xuan Cuong Ngo, Dai-Viet N. Vo   +11 more
core   +1 more source

Adaptive control systems for dual axis tracker using clear sky index and output power forecasting based on ML in overcast weather conditions

Energy and AI
The use of artificial intelligence in renewable energy systems increases energy generation and improves energy system management. The control system of many solar trackers is designed for maximum radiation power conditions and shows decent performance ...
Nursultan Koshkarbay, Saad Mekhilef, Ahmet Saymbetov, Nurzhigit Kuttybay, Madiyar Nurgaliyev, Gulbakhar Dosymbetova, Sayat Orynbassar, Evan Yershov, Ainur Kapparova, Batyrbek Zholamanov, Askhat Bolatbek   +10 more
doaj   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Influence of Solar Position Calculation Methods Applied to Horizontal Single-Axis Solar Trackers on Energy Generation [PDF]

, 2020
Photovoltaic systems have been explored as a solution to meet the growing demand for electricity from a clean and renewable source. However, the low energy conversion efficiency of photovoltaic panels is one of the critical factors that hinder the ...
Karen Barbosa de Melo, Hugo Soeiro Moreira, Marcelo Gradella Villalva   +2 more
core   +1 more source