Artykuły w czasopismach: „Wind energy”

1

Nah, Do-Baek, Hyo-Soon Shin i Duck-Joo Nah. "Offshore Wind Power, Review". Journal of Energy Engineering 20, nr 2 (30.06.2011): 143–53. http://dx.doi.org/10.5855/energy.2011.20.2.143.

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Suska-Szczerbicka, Magdalena. "WIND ENERGY FINANCING TOOLS". Economics & Sociology 3, nr 1a (20.07.2010): 141–60. http://dx.doi.org/10.14254/2071-789x.2010/3-1a/10.

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Matsyura, Alex, Kazimierz Jankowski i Marina Matsyura. "BIRDS’ FLIGHT ENERGY PREDICTIONS AND APPLICATION TO RADAR-TRACKING STUDY". Biological Bulletin of Bogdan Chmelnitskiy Melitopol State Pedagogical University 3, nr 03 (28.10.2013): 135. http://dx.doi.org/10.15421/20133_45.

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In offered research, we propose to observe diurnal soaring birds to check, whether there the positions of birds in formations are such, that the wing tip interval and depth meet the predictions of aerodynamic theory for achievement of maximal conservation of energy or predictions of the hypothesis of communication. We also can estimate, whether adverse conditions of a wind influence the ability of birds to support formation. We can assume that windy conditions during flight might make precision flight more difficult by inducing both unpredictable bird and vortex positions. To this, we need to found change in wing-tip spacing variation with increasing wind speed, suggesting or rejecting that in high winds bird skeins maintained similar variation to that on calm days. The interrelation between variation of mean depth and wind speed should prove this hypothesis. Little is known about the importance of depth, but in high winds the vortex is likely to break up more rapidly and its location become unpredictable the further back a bird flies; therefore, a shift towards skeins with more regular depths at high wind speeds may compensate for the unpredictability of the vortex locations. Any significant relationship between the standard deviation of wing-tip spacing and wind speed suggests that wind has a major effect on optimal positioning. Results of proposed study will be used also as the auxiliary tool in radar research of bird migration, namely in research of flight features of soaring birds. It is extremely important to determine all pertinent characteristics of flock for model species, namely flocking birds. Kew words: birds, flock, radar, flight

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Gartman, Victoria, Kathrin Wichmann, Lea Bulling, María Elena Huesca-Pérez i Johann Köppel. "Wind of Change or Wind of Challenges: Implementation factors regarding wind energy development, an international perspective". AIMS Energy 2, nr 4 (2014): 485–504. http://dx.doi.org/10.3934/energy.2014.4.485.

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Früh, Wolf-Gerrit. "From local wind energy resource to national wind power production". AIMS Energy 3, nr 1 (2015): 101–20. http://dx.doi.org/10.3934/energy.2015.1.101.

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N Akour, Salih, i Hani Omar Bataineh. "Design considerations of wind funnel concentrator for low wind speed regions". AIMS Energy 7, nr 6 (2019): 728–42. http://dx.doi.org/10.3934/energy.2019.6.728.

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Barthelmie, Rebecca, i Martin Kühn. "Wind Energy special issue: offshore wind energy". Wind Energy 10, nr 6 (2007): 587. http://dx.doi.org/10.1002/we.261.

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Musau, Stephen K., Kathrin Stahl, Kevin Volkmer, Nicholas Kaufmann i Thomas H. Carolus. "A design and performance prediction method for small horizontal axis wind turbines and its application". AIMS Energy 9, nr 5 (2021): 1043–66. http://dx.doi.org/10.3934/energy.2021048.

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<abstract> The paper deals with small wind turbines for grid-independent or small smart grid wind turbine systems. Not all small turbine manufacturers worldwide have access to the engineering capacity for designing an efficient turbine. The objective of this work is to provide an easy-to-handle integrated design and performance prediction method for wind turbines and to show exemplary applications. The underlying model for the design and performance prediction method is based on an advanced version of the well-established blade-element-momentum theory, encoded in MATLAB™. Results are (i) the full geometry of the aerodynamically profiled and twisted blades which are designed to yield maximum power output at a given wind speed and (ii) the non-dimensional performance characteristics of the turbine in terms of power, torque and thrust coefficient as a function of tip speed ratio. The non-dimensional performance characteristics are the basis for the dimensional characteristics and the synthesis of the rotor to the electric generator with its load. Two parametric studies illustrate typical outcomes of the design and performance prediction method: A variation of the design tip speed ratio and a variation of the number of blades. The predicted impact of those parameters on the non-dimensional performance characteristics agrees well with common knowledge and experience. Eventually, an interplay of various designed turbine rotors and the given drive train/battery charger is simulated. Criterions for selection of the rotor are the annual energy output, the rotor speed at design wind speed as well as high winds, and the axial thrust exerted on the rotor by the wind. The complete rotor/drive train//battery charger assembly is tested successfully in the University of Siegen wind tunnel. </abstract>

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Wu, Weijian, Zhen Pan, Jiangtao Zhou, Yingting Wang, Jijie Ma, Jianping Li, Yili Hu, Jianming Wen i Xiaolin Wang. "Wind-Speed-Adaptive Resonant Piezoelectric Energy Harvester for Offshore Wind Energy Collection". Sensors 24, nr 5 (20.02.2024): 1371. http://dx.doi.org/10.3390/s24051371.

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This paper proposes a wind-speed-adaptive resonant piezoelectric energy harvester for offshore wind energy collection (A-PEH). The device incorporates a coil spring structure, which sets the maximum threshold of the output rotational frequency, allowing the A-PEH to maintain a stable output rotational frequency over a broader range of wind speeds. When the maximum output excitation frequency of the A-PEH falls within the sub-resonant range of the piezoelectric beam, the device becomes wind-speed-adaptive, enabling it to operate in a sub-resonant state over a wider range of wind speeds. Offshore winds exhibit an annual average speed exceeding 5.5 m/s with significant variability. Drawing from the characteristics of offshore winds, a prototype of the A-PEH was fabricated. The experimental findings reveal that in wind speed environments, the device has a startup wind speed of 4 m/s, and operates in a sub-resonant state when the wind speed exceeds 6 m/s. At this point, the A-PEH achieves a maximum open-circuit voltage of 40 V and an average power of 0.64 mW. The wind-speed-adaptive capability of the A-PEH enhances its ability to harness offshore wind energy, showcasing its potential applications in offshore wind environments.

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SUTHAR, BHARAT D. "Wind Energy Integration for DfIg Based Wind Turbine fault Ride-Through". Indian Journal of Applied Research 4, nr 5 (1.10.2011): 216–20. http://dx.doi.org/10.15373/2249555x/may2014/64.

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Chen, Tsai Hsiang, Van Tan Tran, Nien Che Yang i Ting Yen Hsieh. "Wind Energy Potential in Taiwan". Applied Mechanics and Materials 284-287 (styczeń 2013): 1062–66. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.1062.

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The purpose of this paper is to contribute the database to users of wind power in Taiwan. The study analyzes 12 stations in Taiwan. The data were collected during the period 2001-2010. The Weibull distribution method was used to analyze wind characteristics and wind energy potential in the different site and height as well. The results show that the wind speed at the height 100 m and roughness length 0.1 m in Taiwan between 1.7 m/s and 4.3 m/s, and the power density from 5 W/m2 to 75 W/m2. Taipei is the windy place, while Taichung is the less. The direction of the wind most commonly comes from north-east. The wind energy varies depend on season, strong wind in spring and winter, while weak wind in autumn and summer. The results obtained contribute to a global vision of the wind energy potential and the windy areas in Taiwan.

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HIRAI, Shigeto, i Akihiro HONDA. "Wind Energy". Wind Engineers, JAWE 2002, nr 93 (2002): 13–22. http://dx.doi.org/10.5359/jawe.2002.93_13.

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Mann, Jakob, Jens Nørkær Sørensen i Poul-Erik Morthorst. "Wind energy". Environmental Research Letters 3, nr 1 (styczeń 2008): 015001. http://dx.doi.org/10.1088/1748-9326/3/1/015001.

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Swift-Hook, D. T. "Wind energy". IEE Review 34, nr 6 (1988): 241. http://dx.doi.org/10.1049/ir:19880096.

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Kidd, A. W. "Wind energy". IEE Review 34, nr 9 (1988): 350. http://dx.doi.org/10.1049/ir:19880138.

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MAEDA, Takao. "Wind Energy". Journal of the Society of Mechanical Engineers 108, nr 1045 (2005): 918–19. http://dx.doi.org/10.1299/jsmemag.108.1045_918.

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Leithead, W. E. "Wind energy". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 365, nr 1853 (luty 2007): 957–70. http://dx.doi.org/10.1098/rsta.2006.1955.

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From its rebirth in the early 1980s, the rate of development of wind energy has been dramatic. Today, other than hydropower, it is the most important of the renewable sources of power. The UK Government and the EU Commission have adopted targets for renewable energy generation of 10 and 12% of consumption, respectively. Much of this, by necessity, must be met by wind energy. The US Department of Energy has set a goal of 6% of electricity supply from wind energy by 2020. For this potential to be fully realized, several aspects, related to public acceptance, and technical issues, related to the expected increase in penetration on the electricity network and the current drive towards larger wind turbines, need to be resolved. Nevertheless, these challenges will be met and wind energy will, very likely, become increasingly important over the next two decades. An overview of the technology is presented.

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Hsu, Ming-Hung, Wei-Jen Lee, Jao-Hwa Kuang i Hua-Shan Tai. "Wind Energy". Mathematical Problems in Engineering 2013 (2013): 1. http://dx.doi.org/10.1155/2013/759686.

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S. Kutty, Saiyad, M. G. M. Khan i M. Rafiuddin Ahmed. "Estimation of different wind characteristics parameters and accurate wind resource assessment for Kadavu, Fiji". AIMS Energy 7, nr 6 (2019): 760–91. http://dx.doi.org/10.3934/energy.2019.6.760.

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Yamaji, Kouki, Takaaki Hashimoto, Shoushi Inoue i Yutaka Konishi. "Consideration of Local Wind Energy". Journal of Robotics and Mechatronics 10, nr 5 (20.10.1998): 445–49. http://dx.doi.org/10.20965/jrm.1998.p0445.

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We measured local wind velocity and direction on a hill west of Gamagori City for about 4.5 years, finding that the average annual wind velocity is 3.3m/s and wind with velocity exceeding 4m/s blows over 2500 hours a year. We concluded that useful local wind energy exists based on the electricity generation standard. Three-dimensional incompressible potential flow analysis clarified local winds.

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Ali, Nadwan Majeed, i Handri Ammari. "Design of a hybrid wind-solar street lighting system to power LED lights on highway poles". AIMS Energy 10, nr 2 (2022): 177–90. http://dx.doi.org/10.3934/energy.2022010.

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<abstract> This is an experimental study that investigates the performance of a hybrid wind-solar street lighting system and its cost of energy. The site local design conditions of solar irradiation and wind velocity were employed in the design of the system components. HOMER software was also used to determine the Levelized Cost of Energy (LCOE) and energy performance indices, which provides an assessment of the system's economic feasibility. The hybrid power supply system comprised of an integrated two photovoltaic (PV) solar modules and a combined Banki-Darrieus wind turbines. The second PV module was used to extend the battery storage for longer runtime, and the Banki-Darrieus wind turbines were used also to boost the battery charge for times when there is wind but no sunshine, especially in winter and at night. The results indicated that the hybrid system proved to be operating successfully to supply power for a street LED light of 30 watts. A wind power of 113 W was reached for a maximum wind speed that was recorded in the year 2021 of 12.10 m/s. The efficiency of the combined Banki-Darrieus wind turbine is 56.64%. In addition, based on the HOMER optimization analysis of three scenarios, of which, using either a solar PV system or the combined wind turbines each alone, or using the hybrid wind-solar system. The software results showed that the hybrid wind-solar system is the most economically feasible case. </abstract>

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Milborrow, D. "Assimilating wind [wind energy contribution to UK energy needs]". IEE Review 48, nr 1 (1.01.2002): 9–13. http://dx.doi.org/10.1049/ir:20020101.

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Dolega, W. "THE STATE OF WIND ENERGY IN POLAND". Tekhnichna Elektrodynamika 2018, nr 6 (25.10.2018): 58–61. http://dx.doi.org/10.15407/techned2018.06.058.

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Harris, A. "The winds of change [offshore wind energy]". Engineering & Technology 5, nr 2 (6.02.2010): 40–43. http://dx.doi.org/10.1049/et.2010.0208.

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Chen, YingTung, Kristina Knüpfer, Miguel Esteban i Tomoya Shibayama. "Analysis of the impact of offshore wind power on the Japanese energy grid". AIMS Energy 11, nr 1 (2023): 110–34. http://dx.doi.org/10.3934/energy.2023006.

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<abstract> As part of its economy-wide decarbonization target towards 2050, Japan plans to increase renewable generation, especially offshore wind, for which the country has a high potential. However, this resource is currently under-developed as available turbines are prone to shut-downs and can even suffer damage during the passage of typhoons. With new typhoon proof (T-class) turbines being currently developed by various companies, Japan now aims to develop 10 GW of offshore wind between 2021 and 2030, and 91 GW in the long-term. This research estimates the impact of integrating offshore wind into the Japanese main power grid using T-class turbines by considering three scenarios. First, a business-as-usual (BAU) case with 10 GW offshore wind capacity (following the 6th Strategic Energy Plan of Japan). Second, an offshore wind capacity of 91 GW. Third, the 91 GW offshore capacity being redistributed amongst regions to maximize its integration opportunities (Scenario 2). The simulations were carried out using the Energy System simulation model (EnSym). The results show that the BAU and Scenario 1 resulted in offshore wind achieving 1.7% and 7.28% of generation share, respectively, increasing to 9.77% for Scenario 2. Increasing the share of offshore wind in the energy mix mainly replaced liquefied natural gas (LNG). </abstract>

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Tursunova, Aziza, Saodat Bozorova, Khusniya Ibragimova, Javokhir Bobokulov i Shukhrat Abdullaev. "Researching localization of vertical axis wind generators". E3S Web of Conferences 417 (2023): 03005. http://dx.doi.org/10.1051/e3sconf/202341703005.

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The paper analyses the economic efficiency of using wind power plants in mountainous areas and small residential areas as well as the results of using vertical axis wind devices in areas with low-speed winds. So it became possible to obtain the necessary electrical energy in the less windy regions of Uzbekistan by using vertical axis wind generators. In recent years the demand for electricity is increasing gradually as a result of the sharp growth of direct production enterprises and population consumption. This demand can be compensated by using not only traditional energy sources but also non-traditional energy sources. The use of wind energy is to a certain extent the basis of energy production. Nurato district of Navoi region of Uzbekistan was selected as an object. The problems of saving and shortage of electric energy will be avoided by using the vertical axis wind generator in the regions. By moving the rotor of the wind generator the wind energy is converted into mechanical energy, which generates electrical energy through the generator. Electric power from the generator is provided by a controller that serves to monitor the charge level of the accumulator and is sent to the accumulator through the controller.

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Majdi Nasab, Navid, Jeff Kilby i Leila Bakhtiaryfard. "Integration of wind and tidal turbines using spar buoy floating foundations". AIMS Energy 10, nr 6 (2022): 1165–89. http://dx.doi.org/10.3934/energy.2022055.

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<abstract> Floating platforms are complex structures used in deep water and high wind speeds. However, a methodology should be defined to have a stable offshore structure and not fail dynamically in severe environmental conditions. This paper aims to provide a method for estimating failure load or ultimate load on the anchors of floating systems in integrating wind and tidal turbines in New Zealand. Using either wind or tidal turbines in areas with harsh water currents is not cost-effective. Also, tidal energy, as a predictable source of energy, can be an alternative for wind energy when cut-in speed is not enough to generate wind power. The most expensive component after the turbine is the foundation. Using the same foundation for wind and tidal turbines may reduce the cost of electricity. Different environment scenarios as load cases have been set up to test the proposed system's performance, capacity and efficiency. Available tidal records from the national institute of Water and Atmospheric Research (NIWA) have been used to find the region suitable for offshore energy generation and to conduct simulation model runs. Based on the scenarios, Terawhiti in Cook Strait with 110 m water height was found as the optimized site. It can be seen that the proposed floating hybrid system is stable in the presence of severe environmental conditions of wind and wave loadings in Cook Strait and gives a procedure for sizing suction caisson anchors. </abstract>

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Rudenko, Nikolay, i Valery Ershov. "The use of green energy for energy conservation in high-rise buildings". E3S Web of Conferences 164 (2020): 01023. http://dx.doi.org/10.1051/e3sconf/202016401023.

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The article discusses technical proposals for energy saving in high-rise buildings based on the use of “green” energy. These include: the use of hybrid wind and solar power plants and vortex wind-driven power plants with a vertical axis to utilize both the energy of horizontal wind flows at height level and the energy of ascending airflows. The general principles of building hybrid wind and solar power plants for energy conservation in high-rise buildings are set forth based on the analysis of prior art. These include the following: to ensure safe operation and the absence of tele-interruptions, it is advisable to close the wind turbines with a dome design that has a cavity that captures the wind flow; to ensure environmental friendliness and ease of management, it is advisable to use a variety of vertical vortex wind turbines of modular design; for efficient use of solar energy, it is advisable to integrate photovoltaic cells into the outer structure of the dome; To reduce the cost of the project, it is advisable to use the existing high-rise buildings. A vortex wind power installation is proposed, which allows the use of small winds and low-potential thermal flows, to reduce low-frequency vibration, to increase the stability and efficiency of use of wind energy with ease of installation, maintenance and repair.

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Kidd, A. W. "Wind-energy costs". IEE Review 34, nr 3 (1988): 115. http://dx.doi.org/10.1049/ir:19880040.

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MILBORROW, D. J. "WIND ENERGY ECONOMICS". International Journal of Solar Energy 16, nr 4 (styczeń 1995): 233–43. http://dx.doi.org/10.1080/01425919508914279.

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Berg, Dale E. "Wind Energy Collage". Journal of Solar Energy Engineering 124, nr 4 (1.11.2002): 326. http://dx.doi.org/10.1115/1.1508381.

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Johnson, Gary L., i Peter M. Moretti. "Wind Energy Systems". Journal of Solar Energy Engineering 107, nr 4 (1.11.1985): 363. http://dx.doi.org/10.1115/1.3267708.

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Contestabile, Monica. "Wind energy tariffs". Nature Climate Change 2, nr 11 (26.10.2012): 769. http://dx.doi.org/10.1038/nclimate1737.

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Son, Jung-Young, i Ke Ma. "Wind Energy Systems". Proceedings of the IEEE 105, nr 11 (listopad 2017): 2116–31. http://dx.doi.org/10.1109/jproc.2017.2695485.

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Hopkins, David. "Storing wind energy". Refocus 7, nr 6 (listopad 2006): 28–31. http://dx.doi.org/10.1016/s1471-0846(06)70656-4.

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Jenkins, N. "European Wind Energy". Environmentalist 10, nr 3 (wrzesień 1990): 230–31. http://dx.doi.org/10.1007/bf02240360.

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Dragt, J. B. "Wind Energy Conversion". Europhysics News 24, nr 2 (1993): 27–30. http://dx.doi.org/10.1051/epn/19932402027.

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Richardson, R. D., i G. M. McNerney. "Wind energy systems". Proceedings of the IEEE 81, nr 3 (marzec 1993): 378–89. http://dx.doi.org/10.1109/5.241490.

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Smith, Gillian M. "British Wind Energy". Environmentalist 12, nr 2 (czerwiec 1992): 147–48. http://dx.doi.org/10.1007/bf01266554.

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Tindal, Andrew. "British wind energy". Environmentalist 11, nr 4 (grudzień 1991): 242. http://dx.doi.org/10.1007/bf01266557.

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İlkiliç, Cumali. "Wind energy and assessment of wind energy potential in Turkey". Renewable and Sustainable Energy Reviews 16, nr 2 (luty 2012): 1165–73. http://dx.doi.org/10.1016/j.rser.2011.11.021.

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Shoaib, Muhammad, Imran Siddiqui, Shafiqur Rehman, Shamim Khan i Luai M. Alhems. "Assessment of wind energy potential using wind energy conversion system". Journal of Cleaner Production 216 (kwiecień 2019): 346–60. http://dx.doi.org/10.1016/j.jclepro.2019.01.128.

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Liu, Yanting, Zhe Xu, Yongjia Yu i Xingzhi Chang. "A novel binary genetic differential evolution optimization algorithm for wind layout problems". AIMS Energy 12, nr 1 (2024): 321–49. http://dx.doi.org/10.3934/energy.2024016.

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<abstract>This paper addresses the increasingly critical issue of environmental optimization in the context of rapid economic development, with a focus on wind farm layout optimization. As the demand for sustainable resource management, climate change mitigation, and biodiversity conservation rises, so does the complexity of managing environmental impacts and promoting sustainable practices. Wind farm layout optimization, a vital subset of environmental optimization, involves the strategic placement of wind turbines to maximize energy production and minimize environmental impacts. Traditional methods, such as heuristic approaches, gradient-based optimization, and rule-based strategies, have been employed to tackle these challenges. However, they often face limitations in exploring the solution space efficiently and avoiding local optima. To advance the field, this study introduces LSHADE-SPAGA, a novel algorithm that combines a binary genetic operator with the LSHADE differential evolution algorithm, effectively balancing global exploration and local exploitation capabilities. This hybrid approach is designed to navigate the complexities of wind farm layout optimization, considering factors like wind patterns, terrain, and land use constraints. Extensive testing, including 156 instances across different wind scenarios and layout constraints, demonstrates LSHADE-SPAGA's superiority over seven state-of-the-art algorithms in both the ability of jumping out of the local optima and solution quality.</abstract>

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Ren, Lei, Peng Yao, Zhan Hu i Michael Hartnett. "Seasonal Variation Characteristics Of Winds At The West Coast Of Ireland". E3S Web of Conferences 53 (2018): 03023. http://dx.doi.org/10.1051/e3sconf/20185303023.

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Coastal areas have a large content of renewable energies such as wind energy, tidal energy and wave energy. With continuous development of wind power generation, wind energy research at home and abroad is increasing. In this research, wind data over one year were obtained from ECMWF. In order to study wind variation characteristics, wind dataset was divided into four seasonal categories. Analysis of seasonal variation characteristics of winds at the west coast of Ireland provides useful information for wind energy development and wind energy assessment.

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Kurniati, Sri, Sudirman Syam i Arifin Sanusi. "Numerical investigation and improvement of the aerodynamic performance of a modified elliptical-bladed Savonius-style wind turbine". AIMS Energy 11, nr 6 (2023): 1211–30. http://dx.doi.org/10.3934/energy.2023055.

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<abstract> The Savonius turbine has an advantage over other types of vertical axis wind turbines (VAWT), which have speeds ranging from the lowest wind speed to the highest. However, the main problem is the negative torque on the rotary blades. This paper used computational fluid dynamics to numerically investigate the two-dimensional flow analysis of a modified elliptical Savonius wind turbine. This study investigated and compared five rotor blades: Classic, elliptical, and their three modifications. The behavior of wind energy was studied explicitly by changing the angle of the axis of the elliptical blade from the concave side, which leads to a convex shape to increase the area affected by the thrust force and increase the positive torque. The ANSYS (previously known as STASYS Structural Analysis System) Fluent version 15 software solves the unstable Reynolds-Naiver-Stokes (URAN) equation. The coupling algorithm solves the pressure-based coupling pressure velocity using the ANSYS Fluent. In the simulation, the drag, lift, and moment coefficients on the Savonius turbine were calculated directly at each change in the axis angle. The test results at wind speeds of up to nine m/s showed that the modified elliptical turbine with an axis angle of 50° had the highest coefficient power (Cp) among other elliptical blade modifications. In comparison, the test results with variations in wind speeds of 4–12 m/s showed that turbines with an axis angle of 55° performed better with a higher tip speed ratio (TSR) than other models. </abstract>

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Hossain, Md Shouquat, Adarsh Kumar Pandey, Mohsin Ali Tunio, Jeyraj A/L Selvaraj, Ali Wad Abbas Al-Fatlawi i Kazi Enamul Hoque. "Statistical Modeling for Hydrogen Production Using Wind Energy". International Journal of Materials, Mechanics and Manufacturing 4, nr 3 (2015): 218–22. http://dx.doi.org/10.7763/ijmmm.2016.v4.260.

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Khusniddinov, Fakhriddin Shamsiddinovich, Dilshodbek Ravshanbek O’g’li Xusanov i Fazliddin Xusanboy O’g’li Ashuraliyev. "THE IMPORTANCE OF WIND ENERGY AND ITS REASONABLE USAGE". CURRENT RESEARCH JOURNAL OF PEDAGOGICS 04, nr 04 (4.04.2023): 58–64. http://dx.doi.org/10.37547/pedagogics-crjp-04-04-12.

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Due to the great power of the wind, the generation of electricity using ecologically clean technology is of great importance at present. Pictures taken from space show that the air ocean of the territory of the independent commonwealth states is constantly affected by the wind. Using it as an energy source, the idea of creating various wind power plants is appropriate. For this purpose, it is necessary to select suitable locations for wind use and collect relevant data for their description. For wind power plants, it will not be necessary to build new railways, extract fuel and transport it, etc.

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Florescu, Ana Maria Smaranda, Georgeta Bandoc i Mircea Degeratu. "Energy Efficiency Evaluation of Wind Energy Based on Energy Reports". Advanced Materials Research 1008-1009 (sierpień 2014): 188–91. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.188.

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Harnessing wind energy for power generation involves first achieving a preliminary study to understand the wind characteristics for the chosen location. In this way, the results are useful for understanding performace of an project that is connected with wind energy. The purpose of this article is to determine global estimates and different energy reports (ER). This is necessary because we do not always have a lots of meteorological datas. For the determination of these reports (ER) it used different kinds of energies calculated for a period of six years, hourly, daily and monthly data. Therfor, it was calculated the energy monthly, seasonally and annually report between monthly energy calculated with daily wind date and monthly energy calculated with instantaneous wind date (R m, Z/I); energy monthly, seasonally and annually report between monthly energy calculated with monthly wind date and monthly energy calculated with instantaneous wind date (R m, L/I); energy monthly, seasonally and annually report between monthly energy calculated with instantaneous wind date and monthly energy Betz (R m, I/B). All these reports were determined for a certain family of wind turbines used for a functional home using wind and solar energy. From the obtained results that are quite significant differences between seasonal and annual energy reports values determined with different types of energy.

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Akour, Salih Nawaf, i Mahmoud Azmi Abo Mhaisen. "Parametric design analysis of elliptical shroud profile". AIMS Energy 9, nr 6 (2021): 1147–69. http://dx.doi.org/10.3934/energy.2021053.

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<abstract> Parametric design analysis for Eccentric Rotated Ellipsoid (ERE) shroud profile is conducted whereas the design model is validated experimentally. A relation between shroud inlet, length and exit diameter is established, different ratios related to the wind turbine diameter are introduced, and solution for different ERE family curves that passes on the inlet, throat, and exit points is studied. The performance of the ERE shroud is studied under different wind velocities ranging from 5–10 m/s. The method used in creating the shroud profile is by solving the ERE curve equations to generate large family of solutions. The system is modeled as axisymmetric system utilizing commercial software package. The effect of the parameters; shroud length, exit diameter, inlet diameter, turbine position with respect to the shroud throat, and wind velocity are studied. An optimum case for each shroud length, exit diameter and location of the shroud with respect to the wind turbine throat axis are achieved. The simulation results show an increase in the average wind velocity by 1.63 times of the inlet velocity. This leads to a great improvement in the wind turbine output power by 4.3 times of bare turbine. One of the achieved optimum solutions for the shroud curves has been prototyped for experimental validation. The prototype has been manufactured using 3D printing technology which provides high accuracy in building the exact shape of shroud design curve. The results show very good agreement with the experimental results.</abstract>

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Ma, Hui Qun, i Qi Feng Wang. "Wind Energy Resource Assessment for Wind Farm". Applied Mechanics and Materials 130-134 (październik 2011): 1295–97. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1295.

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In feasible research of wind farm construction, wind resources assessment is an important process. The grade of wind resources is the crucial qualification in the construction. It determines whether this wind farm is profitable or not. his paper introduces the theory of wind energy resource assessment firstly, including: wind power density, wind speed correction and Weibull distribution. Then take Yishui wind farm as example to calculate the wind energy resource assessment.

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