Techno-economical evaluation of wind energy potential and analysis of power generation from wind at Gharo, Sindh Pakistan
Techno-economical evaluation of wind energy potential and analysis of power generation from wind at Gharo, Sindh Pakistan
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DOI：
10.1016/j.rser.2014.04.027
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发表时间：
2014-07
影响因子：
15.9
通讯作者：
S. F. Khahro;Kavita Tabbassum;Amir Mahmood Soomro;X. Liao;Muhammad Bux Alvi;Lei Dong;M. Farhan Manzoor
中科院分区：
文献类型：
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作者：
S. F. Khahro;Kavita Tabbassum;Amir Mahmood Soomro;X. Liao;Muhammad Bux Alvi;Lei Dong;M. Farhan Manzoor
如今，可再生能源更受欢迎，因为与传统能源相比，这些能源对环境友好，零排放。在全球多种可再生能源中，风能增长最快。本文的主要目的是分析和评估巴基斯坦信德省加罗的风能特性和风电潜力。本研究考虑了2003年1月至2007年12月在30 m高度测量的5年风数据。年平均风速大于5 m/s。最可几风速为9.356 m/s，携带最大能量的风速为11.43 m/s。对于加罗的风速数据，标准差的最大值为3.561 m/s，最小值确定为1.587 m/s。Weibull形状参数和尺度参数的变化范围分别为1.291 ~ 4.569和2.377 ~ 9.727 m/s。风力功率密度大于260 W/m2，能量密度大于2300 kW/m2。本文还比较了利用实测风场数据计算的风功率密度与用威布尔函数和瑞利函数计算的风功率密度。加罗的风向几乎五年都是西风。根据在加罗收集的风力数据，通过不同制造商的风力涡轮机进行了发电评估。GE 45.7风力涡轮机每年产生11.220 GWh的高能量，容量系数为0.56。使用这些风力涡轮机发电的经济分析得出，GE 45.7风力涡轮机每千瓦时能源的估计成本为0.0255美元。对信德省加罗收集的风数据进行的技术经济分析表明，该地点具有适当的风能潜力，因此适合开发风力发电项目。
Renewable sources of energy are more favorable these days because these are environment friendly with zero emissions as compared to conventional energy sources. Wind energy is most rapidly growing, among several renewable energy sources, worldwide. The prime objective of this paper is to analyze and evaluate the wind energy characteristics and wind power potential at Gharo Sindh Pakistan. Five years wind data from Jan 2003 to Dec 2007, measured at 30 m height, has been considered in this study. The mean wind speed is more than 5 m/s for every year. The most probable wind speed is 9.356 m/s while the wind speed carrying maximum energy is 11.43 m/s. the highest value of standard deviation is 3.561 m/s and the lowest value is determined as 1.587 m/s for wind speed data at Gharo. The Weibull shape and scale parameters in the ranges from 1.291 to 4.569 and from 2.377 m/s to 9.727 m/s respectively. The wind power and energy densities are more than 260 W/m2and 2300 kW/m2respectively. The comparison of wind power densities calculated though measured wind data and calculated using Weibull and Rayleigh functions is also carried in this study. The direction of wind at Gharo is westerly for almost all five year. The assessment for power generation, from wind data collected at Gharo, through wind turbines of different manufacturers has been carried out. The GE45.7 wind turbine generates high annual energy of 11.220 GWh with capacity factor of 0.56. The economic analysis using these wind turbines, for power generation, gave an estimated cost of US$0.0255 per kWh of energy from GE45.7 wind turbine. The technical and economic analysis of wind data collected at Gharo, Sindh shows that this site has apt wind energy potential and hence is suitable for development of wind power generation projects.