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Keywords: Wind
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Journal Articles
Accepted Manuscript
Article Type: Research Papers
J. Sol. Energy Eng.
Paper No: SOL-22-1072
Published Online: May 17, 2022
... data concerning the wind tunnel experimental values. An average percentage difference of 3.1% was found for drag, 6.5% for lift, and 6.0% for overturning. A significant improvement was obtained by using this new formulation with respect to a non-modified k-e turbulence model. The average differences...
Journal Articles
Accepted Manuscript
Article Type: Research Papers
J. Sol. Energy Eng.
Paper No: SOL-21-1140
Published Online: April 21, 2022
...Mohamed Taher Bouzaher; Belhi Guerira To improve the efficiency of a Savonius vertical axis wind turbine, this investigation proposes the use of expandable blades instead of rigid blades. The expandable blades have the ability to change their form during the turbine rotation. The expansion...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. April 2022, 144(2): 021003.
Paper No: SOL-21-1138
Published Online: October 19, 2021
... but also to well design it for specific applications without the need to install it on site, accurate computational models that reflect its real behavior should be developed. Aiming to contribute on this matter, this work presents a dynamic model for a solar-wind microgeneration system, which allows...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. October 2021, 143(5): 054502.
Paper No: SOL-20-1363
Published Online: April 2, 2021
...Sobhy M. Ghoneam; Ahmed A. Hamada; Taha S. Sherif This article presents a comprehensive study of the dynamic behavior of small vertical-axis wind turbines (VAWTs) based on local fabricated Savonius VAWTs, which is suitable for countries that have a moderate wind speed. The merits of this design...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. April 2021, 143(2): 021005.
Paper No: SOL-20-1129
Published Online: August 27, 2020
...Sobhy Ghoneam; Ahmed Hamada; Taha Sherif This article presents a study of modeling and optimization for the dynamic performance of wind turbine composite material blades and investigates the effects of composite material stacking sequence in addition to some design parameters such as twist angle (ɸ...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. February 2021, 143(1): 011013.
Paper No: SOL-20-1026
Published Online: August 24, 2020
... 2020 20 06 2020 24 08 2020 swing arm turbine NACA0015 energy extraction oscillating gurney flap efficiency fluid flow wind wind turbine Compared to other natural resources, the renewable energies are able to provide clean energy with acceptable constructive effects...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. February 2021, 143(1): 011007.
Paper No: SOL-18-1540
Published Online: July 28, 2020
...Suhil Kiwan; Elyasa Al-Gharibeh; Emad Abu-Lihia We research the investment potential of wind energy in Jordan. The capacity factor of the first large-scale wind farm in the country, Tafila Wind Farm, was found to be 33.1%, based on actual energy production during its first year of operation...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. February 2021, 143(1): 014501.
Paper No: SOL-18-1580
Published Online: June 26, 2020
...Davide Astolfi; Francesco Castellani; Francesco Natili Multi-megawatt wind turbines are nowadays a mature technology, and therefore, there is considerable scientific and industrial attention to the opportunity of further improving the efficiency of wind kinetic energy conversion into electricity...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. August 2020, 142(4): 044501.
Paper No: SOL-19-1277
Published Online: February 6, 2020
... and frequent power cuts. The island being economically weak, power is inaccessible to most of its residents. Thus, the per unit energy consumption of the area is low and it has led to the lowering of the human development index of the area. However, Sagar Island, owing to its location, has huge solar and wind...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. June 2020, 142(3): 034502.
Paper No: SOL-18-1429
Published Online: January 21, 2020
...Matteo Mana; Davide Astolfi; Francesco Castellani; Cathérine Meißner The importance of accurately forecasting the power production of wind farms is boosting the development of meteorological models and their processing. This work is a discussion of different forecast configurations for predicting...
Journal Articles
Article Type: Review Articles
J. Sol. Energy Eng. June 2020, 142(3): 030801.
Paper No: SOL-18-1454
Published Online: December 10, 2019
... renewable energy technology (RET). After analyzing the major sources of renewable energy such as solar, wind, and hydropower, more focus will be given to the state of renewable energies within India and the technology adopted currently has many advantages. Further, these crafts in India...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. April 2020, 142(2): 021006.
Paper No: SOL-18-1087
Published Online: October 23, 2019
... in wind energy calculations. All simulations are solved using the open-source software openfoam v.2.4.0 with a modified k–ε turbulence closure. The forest drag effect is calculated with two models: a displacement height model and a canopy model that estimates the pressure loss due to the forest through...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. April 2020, 142(2): 024501.
Paper No: SOL-18-1256
Published Online: October 22, 2019
...Davide Astolfi; Francesco Castellani; Ludovico Terzi The alignment of the wind turbine yaw to the wind direction is an important topic for wind turbine technology by several points of view. For example, the negative impact on power production of an undesired non-optimal yaw alignment can...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. February 2020, 142(1): 011010.
Paper No: SOL-19-1032
Published Online: September 3, 2019
...Dara Khalid Khidhir; Soorkeu A. Atrooshi The principle of solar chimney power plant (SCPP) is based on harvesting the thermal spectrum of solar radiation and converting it to mechanical energy by the means of a collector, a wind turbine, and a chimney. In this work, a number of experiments were...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. December 2019, 141(6): 061015.
Paper No: SOL-19-1006
Published Online: June 28, 2019
...Haris Ishaq; Osamah Siddiqui; Ibrahim Dincer A new energy system for power, hydrogen and fresh water production is proposed. The environmentally benign ocean thermal energy conversion (OTEC), wind and solar energy resources are utilized. The hybrid thermochemical CuCl cycle is used for hydrogen...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. February 2019, 141(1): 011006.
Paper No: SOL-17-1391
Published Online: September 14, 2018
...Yaşar Ostovan; M. Tuğrul Akpolat; Oğuz Uzol This study presents an experimental investigation on the effects of winglets on the near wake flow around the tip region and on the tip vortex characteristics downstream of a 0.94 m diameter three-bladed horizontal axis wind turbine (HAWT) rotor. Phase...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. February 2019, 141(1): 014501.
Paper No: SOL-18-1036
Published Online: September 14, 2018
...Davide Astolfi; Francesco Castellani; Andrea Lombardi; Ludovico Terzi The financial sustainability and the profitability of wind farms strongly depend on the efficiency of the conversion of wind kinetic energy. This motivates further research about the improvement of wind turbine power curve...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. February 2019, 141(1): 011005.
Paper No: SOL-17-1505
Published Online: August 31, 2018
...David Wenzhong Gao; Xiao Wang; Jianhui Wang; Tianqi Gao; Margareta Stefanovic; Xiangjun Li Advanced and model-based control techniques have become prevalent in modern wind turbine controls in the past decade. These methods are more attractive compared to the commonly used proportional-integral...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. December 2018, 140(6): 061006.
Paper No: SOL-17-1410
Published Online: June 26, 2018
... 5.36 5.10 3.17 4.71 863.3 9(Best) 8.91 6.53 5.57 4.43 5.17 5.00 4.82 854.8 Table 4 shows that the average displacements of the designed connector with different tracking angles are between 28% lower and 21% larger than that of the model with fixed BCs under 13.8 m/s wind speed...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. October 2018, 140(5): 051010.
Paper No: SOL-17-1491
Published Online: May 29, 2018
...Hamid Khakpour Nejadkhaki; John F. Hall A modeling framework to analyze a wind turbine blade subjected to an out-of-plane transformation is presented. The framework combines aerodynamic and mechanical models to support an automated design process. The former combines the National Renewable Energy...