 Air concentrating nozzles: a promising option for wind turbinesS. Shikha, T.S. Bhatti and D.P. Kothari International Journal of Energy Technology and Policy, 2005, vol. 3, issue 4, 394-412 Abstract: Although the use of wind turbines has become necessary in many parts of the world, the actual developments in wind turbines do not concern countries where the average wind speeds are low. The paper introduces a new vertical axis wind rotor using a convergent nozzle for low wind speed areas. This paper brings a detailed theoretical and practical study of air concentrating nozzle and the optimum nozzle dimensions have been analysed in detail. A research programme involving wind tunnel tests of five different nozzle models has also been conducted. The length and the outlet area of the nozzle were changed periodically to see their effect on the increase of wind speed. The variation of the output speed with different values of input wind speed, different input areas of nozzle and different lengths of nozzle placed at different distances from the wind tunnel have been outlined in the paper. Results of additional study of the new rotor's performance characteristics using concentrating nozzles have also been outlined. Keywords: wind energy; wind power; concentrating nozzles; vertical axis wind rotor; nozzle parameters; wind turbines; convergent nozzles; low wind speed; rotor performance. (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:ids:ijetpo:v:3:y:2005:i:4:p:394-412 Access Statistics for this article More articles in International Journal of Energy Technology and Policy from Inderscience Enterprises Ltd |
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