| Budget Amount *help |
¥43,030,000 (Direct Cost: ¥33,100,000、Indirect Cost: ¥9,930,000)
Fiscal Year 2014: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2013: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Fiscal Year 2012: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
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| Outline of Final Research Achievements |
We have developed and studied Wind-solar tower consisting of a chimney (tower) and a collector. A wind turbine is installed at the base of the tower. The wind-solar tower can generate electricity by updraft wind due to solar insolation just above the ground in the collector, and also by wind flow near the exit of the tower creating pressure difference. A set of scaled model experiment showed remarkable power enhancement with “diffuser shaped tower” (opening angle of 4 degrees) compared to the conventional simple cylindrical tower. The power enhancement is larger than 50%. For the up scaled field test, a 10m tower model was constructed for further investigation. Newly obtained data set shows power generation produced by both updraft wind and by the effect of wind flow near the tower exit as seen in the smaller models. This is an important step toward the future field test with more practical tower size.
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