Abstract
Recently, environmental problems of global warming etc. have come to stand out gradually by the volume consumption of the fossil fuel. Power generation in this using natural energy is paid to attention. There is wind power generation as the one. In the present study, it has aimed to experiment by using the vertical axis type pinwheel, and the reverse-..".. to examine the performance and the utility of the pinwheel for wind power generation calling the Cygnus mill ..the use of the wing that becomes like the character of .. piling up... When the number of sheets of the braid is changed into two, three, and four pieces, the following has been understood. (1) Power generation increases by the number of sheets little at the low wind speed. (2)The Z=3 piece is suitable at a high velocity of the wind. (3) Power generation increases by the wingspread large.
