<論文>宇部市域における風エネルギー特性(II)

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Characteristics of wind energy at Ube city, Yamaguchi, Japan were analyzed with emphasis on yearly variation for the period April 1980 to March 1982. Annual mean values of wind speeds were about equal in 1980 and 1981,which were 2.94 m/s and 2.81 ml s, respectively. Whereas there was significant difference between the wind energy densities per day, which were 1.37 KWH/m^2 and 0.89 KWH/m^2,respectively. This difference was caused by the frequency distribution of wind speed, especially in the frequency of strong wind occurrence. The dependence of mean values of wind speed and wind energy on the frequency distribution was analyzed using the Weibull distribution function. The seasonal variation of wind speed or energy density was essentially different between the two years. It is noted that the amount of wind energy in summer of particular year can exceed that of winter, although opposite behavior is common. Probability of occurrence of daily wind energy, duration hours of weak wind and daily time evolution of wind power are also discussed.
宇部工業高等専門学校の論文
1983-03-23