![]() All turbines had the same height, swept area, and NACA0015 airfoil with the same chord length. Wind tunnel experiments were performed to evaluate the power coefficients of three vertical axis wind turbines (VAWTs), namely, (a) conventional VAWT (two‐bladed troposkien shape), (b) novel 50% shifted troposkien shape‐vertical axis wind turbine (50% STS‐VAWT), and (c) novel 100% STS‐VAWT. This comparative performance study shows that VAWTs are not only characterized by superior performance but also exhibit a very simple design that is cost effective from both manufacturing and maintenance perspectives. Two types of three-bladed VAWTs have been designed, one with the Darrieus (H-type) and the other with the Troposkien (Φ-type) rotor configuration, in the 2, 4, and 6 MW rated capacity range based on an optimal parametric study. In this study, aerodynamic performance and feasibility of multi-megawatt vertical axis wind turbines (VAWTs) is compared to existing, similarly rated horizontal axis wind turbines. ![]() For offshore wind - still at early stages of the deployment journey - much remains to be accomplished to develop and integrate large-scale systems and to reduce costs. The challenge of integrating greater amounts of variable wind power into the grid is a growing concern that must be addressed. Growing quantities of low-cost wind power still require predictable, supportive regulatory environments and appropriate market designs.
0 Comments
Leave a Reply. |