Performance Estimation of Straight Wings Vertical-Axis Wind Turbines by using Two-Stage Actuator Disk Concept

Abstract

The authors developed the performance estimation method for Straight Wings Vertical-Axis Wind Turbines by means of two-stage actuator disk concept. In the procedure, power loss was taken into account. The present work is aimed at the evaluation of the dependency of performance on solidity. The result showed that it gave slightly better performance in comparison to single stage theory. The highest performance is obtained at a solidity of 0.08.