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류철진・김대연・이상희・김해빈・김영덕+ 가톨릭관동대학교 대원환경연구소 2016 보건환경연구논문집 Vol.21 No.-
ABSTRACT : Recently, renewable energy is emerging as a substitute for conventional fossil fuels. In particular, wind power generation is expected to account for 34% of the world's energy production in 2050, despite problems such as noise and irregular production. Therefore, although the technology development is carried out in various countries around the world, the level is poor at present. In general, most of the country is affected by small wind speed of 0 ~ 4m / s. Most of the cities in Korea are installed on roof roofs or between buildings to convert them into electrical energy. Therefore, considering this point, both low noise and aesthetic aspects should be considered at the same time. This study investigates a hybrid windmill that combines a small drag type (elliptical type) windmill in its interior to compensate for the disadvantages of a gyro mill (lift type) windmill for use in urban areas