公开(公告)号：WO2015160955A2

公开(公告)日：2015-10-22

申请号：PCT/US2015/025978

申请日：2015-04-15

Applicant: OGIN, INC.

Inventor： DUMLUPINAR, Ercan ,  MEEROFF, Jamie ,  DOLD, Robert, H. ,  PRESZ, Walter, M., Jr.

IPC: F03D1/04

CPC classification number: F01D9/02 ,  F01D5/021 ,  F01D5/12 ,  F01D25/24 ,  F01D25/30 ,  F03D1/04 ,  F05B2240/123 ,  Y02E10/72

Abstract: The present disclosure includes a shrouded fluid turbine that generates large wake expansion to generate power coefficients greater than the Betz power coefficient of 16/27 based on maximum system area. The Virtual Diffuser Wind Turbine (VDWT) system operates differently with, and without power extraction. With power extraction the VDWT system includes a high rotor thrust coefficient combined with an annular shroud system that uses bypass flow to form an annular, high-energy bypass flow stream that flows outward at the exit plane of the VDWT generating an observable virtual diffuser downstream therefrom. This outward, high-energy flow reduces exit plane pressure generating large wake expansions. The large wake expansion increases the flow rate through the rotor. Without rotor power extraction, separation takes place which reduces some of aerodynamic loads on the VDWT at extreme winds.

Abstract translation: 根据最大系统面积，本公开包括产生大的尾流扩展以产生大于16/27的贝兹功率系数的功率系数的罩式流体涡轮机。 虚拟分散风力涡轮机（VDWT）系统的运行方式与没有电力提取的情况不同。 随着功率提取，VDWT系统包括高转子推力系数与环形护罩系统的组合，所述环形护罩系统使用旁路流来形成环形高能量旁路流动流，所述旁路流动流在VDWT的出口平面处向外流动，从而在其下游产生可观察的虚拟扩散器 。 这种向外的高能量流动降低了出口平面压力，产生大的尾流膨胀。 大的尾流扩展增加了通过转子的流量。 在没有转子动力抽取的情况下，分离发生在极端风力下减少VDWT上的一些空气动力载荷。