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Joint Model of wind Speed and Corresponding Direction Based on wind rose for wind Energy Exploitation

Journal of Ocean University of China 2022年第4期21卷 876-892页

作者： YANG Zihao LIN Yifan DONG Sheng College of Engineering Ocean University of ChinaQingdao 266100China Huadian Heavy Industries Co. Ltd.Beijing 100070China

As a common and extensive datum to analyze wind,wind rose is one of the most important components of the meteorological *** this study,a model is proposed to establish the joint probability distribution of wind speed and direction using grouped data of wind *** the basis of the model,an algorithm is presented to generate pseudorandom numbers of wind speed and paired direction ***,the proposed model and algorithm are applied to two weather stations located in the Liaodong *** the models built for the two cases,a novel graph representing the continuous joint probability distribution of wind speed and direction is plotted,showing a strong correlation to the corresponding wind ***,the joint probability distributions are utilized to evaluate wind energy potential *** cooperation with Monte Carlo simulation,the model can approximately predict annual directional extreme wind speed under different return periods under the condition that the wind rose can represent the meteorological characters of the wind field *** model is beneficial to design and install wind turbines.

关键词： angular-linear distribution wind speed wind direction wind rose wind energy Monte Carlo simulation

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Investigation of wind energy potentials in Brunei Darussalam

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Frontiers in Energy 2019年第4期13卷 731-741页

作者： M.A.SALAM M.G.YAZDANI Q.M.RAHMAN Dk NURUL S.F.MEI Syeed HASAN Faculty of Engineering Universiti Teknologi BE1410Brunei Darussalam Electrical and Computer Engineering University of Western OntarioLondon N6A 3K7Canada

Conventional power generation mainly depends on natural gas and diesel oil in Brunei *** power utility company is now thinking of power generation using natural *** this paper,wind energy,being one of the most readily available renewable energy sources,was *** wind characteristic,velocity and directions were studied using Weibull distribution based on the measurement of wind speed at two different locations in Brunei *** wind speed distributions were modeled using the wind Power *** wind rose graph was obtained for the wind direction to analyze the wind power density onshore and *** on this analysis,it has been found that the wind speed of 3 to 5m/s has a probability of occurrence of 40%.Besides,the annual energy production at a wind speed of 5m/s has been found to be in the range between 1000 and 1500 kWh for both the locations in Brunei Darussalam.

关键词： wind speed Weibull distribution wind rose wind energy wind power

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Resource Assessment of wind Energy Potential of Mokha in Yemen with Weibull Speed

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Computers, Materials & Continua 2021年第10期69卷 1123-1140页

作者： Abdulbaset El-Bshah Fahd N.Al-Wesabi Ameen M.Al-Kustoban Mohammad Alamgeer Nadhem Nemri Majdy M.Eltahir Hany Mahgoub Noha Negm Department of Electronic Engineering Faculty of EngineeringUniversity of Science and Technology UST-Sana’aYemen Department of Computer Science King Khalid UniversityMuhayel AseerKingdom of Saudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen Department of Electronic Faculty of EngineeringUSTSana’aYemen Department of Information Systems King Khalid UniversityMayahel AseerKSA Department of Computer Science King Khaled UniversityKSA&Faculty of Computers and InformationMenoufia UniversityEgypt Department of Computer Science King Khaled UniversityKSA&Faculty of ScienceDepartment of Mathematics and Computer ScienceMenoufia UniversityEgypt

The increasing use of fossil fuels has a significant impact on the environment and ecosystem,which increases the rate of *** the high potential of renewable energy sources in Yemen and other Arabic countries,and the absence of similar studies in the *** study aims to examine the potential of wind energy in Mokha *** was done by analyzing and evaluating wind properties,determining available energy density,calculating wind energy extracted at different altitudes,and then computing the capacity factor for a few wind turbines and determining the *** speed was verified as the closest to the average actual wind speed using the cube root,as this was verified using 3 criteria for performance analysis methods(R^(2)=0.9984,RMSE=0.0632,COE=1.028).The wind rose scheme was used to determine the appropriate direction for directing the wind turbines,the southerly direction was appropriate,as the winds blow from this direction for 227 days per year,and the average southerly wind velocity is 5.27 m/s at an altitude of 3 *** turbine selected in this study has a tower height of 100m and a rated power of 3.45 *** capacitance factor was calculated for the three classes of wind turbines classified by the International Electrotechnical Commission(IEC)and compared,and the turbine of the first class was approved,and it is suitable for the study site,as it resists storms more than *** daily and annual capacity of a single,first-class turbine has been assessed to meet the needs of 1,447 housing units in Mokha *** amount of energy that could be supplied to each dwelling was around 19 kWh per day,which was adequate to power the basic loads in the home.

关键词： wind energy system probability density wind speed Weibull velocity Rayleigh velocity wind rose

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Assessment and Modelling of the Radiation Behaviour through Atmosphere for North Eastern Part of Egypt

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Journal of Environmental Science and Engineering 2010年第6期4卷 38-42页

作者： F.S. Tawfik A. Ramadan A.Y. Ellithi Siting and Environmental Department National Center for Nuclear Safety and Radiation Control Atomic Energy Authority Cairo11762 Egypt Nuclear Physics Physics Department Faculty of Science Cairo University

The aim of this work is the assessment of the behavior of the radiation over studied area at the different seasons of the year using mathematical model. To achieve this purpose, the dispersion factor has been calculated. The calculated dispersion factor gives an indication about the behavior and the distribution of pollutants in the atmosphere. Since the used model requires specific measuring hourly metrological data over long periods of time at least one year such as wind speed, incoming solar, radiation and wind direction for studied area. Also terrain information and population distribution should be taken into consideration. The atmospheric parameters such as monthly wind rose, hourly stability classes and joint frequency have been determined using developed computer programs. The results of wind rose shown that the prevailing wind direction for studied area is northeast direction in winter. This situation give us a primary knowledge about months （months of winter） at which the studied area may be affected by the air coming from the east borders. The results of dispersion factor indicate that the sectors S, SSE and SE for the studying area are greatly exposed to air which may be polluted.

关键词： North eastern part of Egypt radiation behavior wind rose mathematical models

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