| The concentrated wind energy turbine was a new type of wind power generator ,Because its flow field characteristics differed from the ordinary .It was important to design the blades for the flow field characteristic of the concentrated wind energy apparatus and to establish proper designing theory .The objective of this research work mainly focused on designing a new concept cross-section blade (NKYG-6)that the chord at the bottom end was shorter and the one at the tip part was longer , based on the theory of Betz~. momentum.. the theory of blade basic element and the result of wind tunnel comprehensive test .The blade has been tested in the FD-09 low speed wind- tunnel of the 701 institute, China Spaceflight Industry General Corporation .The result of wind tunnel test verified that the new type blade had less diameter.. greater output at low wind speed.. lower noise than the others and was the best blade for the concentrated wind energy turbine .In addition ,based on the several results of wind unnel tests and theories for the flow-field characteristics of the concentrated wind energy turbine and even the theory offered the opportunity for the concentrated wind energy turbine implementing great efficiency.. lower cost and leading to industrial development. |
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