Flow field and power output characteristic of the reformative model concentrated wind energy turbine

Due to the unique characteristics of the flow field of concentrated wind energy turbine, its characteristics of the flow field influence the performance of the concentrated wind energy turbine directly. The reformative model of concentrated wind energy turbine was converted from a resembled model. The flow field of reformative model was tested with outside truck-mounted method. The test showed that it was 1.38 times faster than natural speed of wind and higher than quondam model by 5.34% where the impeller was installed in the middle of the cylinder in the reformative model. The wind energy increased to 2.65 times. The power output characteristic test was carried out on reformative model in open truck. When natural speed was 10.83 m/s, the impeller arrived at its rated speed, the wind power utilization coefficient Cp got the value of 0.182 and the output power was 117.6 W. At the same time, the efficiency of generator could reach 0.655. The test results showed that it was 1.37 times faster than natural speed of wind where the impeller was installed in the middle of the cylinder in the reformative model. The wind energy increased to 2.57 times. It provides an important basis for turbine design of concentrated wind energy turbine.