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Increasing the Power Production of Vertical-Axis Wind-Turbine Farms Using Synergistic Clustering

Author(s): Hezaveh, SH; Bou-Zeid, Elie; Dabiri, J; Kinzel, M; Cortina, G; et al

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Abstract: Vertical-axis wind turbines (VAWTs) are being reconsidered as a complementary technology to the more widely used horizontal-axis wind turbines (HAWTs) due to their unique suitability for offshore deployments. In addition, field experiments have confirmed that vertical-axis wind turbines can interact synergistically to enhance the total power production when placed in close proximity. Here, we use an actuator line model in a large-eddy simulation to test novel VAWT farm configurations that exploit these synergistic interactions. We first design clusters with three turbines each that preserve the omni-directionality of vertical-axis wind turbines, and optimize the distance between the clustered turbines. We then configure farms based on clusters, rather than individual turbines. The simulations confirm that vertical-axis wind turbines have a positive influence on each other when packed in well-designed clusters: such configurations increase the power generation of a single turbine by about 10 percent. In addition, the cluster designs allow for closer turbine spacing resulting in about three times the number of turbines for a given land area compared to conventional configurations. Therefore, both the turbine and wind-farm efficiencies are improved, leading to a significant increase in the density of power production per unit land area.
Publication Date: 2018
Citation: Hezaveh, SH, Bou-Zeid, E, Dabiri, J, Kinzel, M, Cortina, G, Martinelli, L. (2018). Increasing the Power Production of Vertical-Axis Wind-Turbine Farms Using Synergistic Clustering. Boundary-Layer Meteorology, 169 (275 - 296. doi:10.1007/s10546-018-0368-0
DOI: doi:10.1007/s10546-018-0368-0
Pages: 275 - 296
Type of Material: Journal Article
Journal/Proceeding Title: Boundary-Layer Meteorology
Version: Final published version. This is an open access article.

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