Improving the performance of a combined horizontal and vertical axis wind turbine for a specific terrain using CFD. (2022)

• Record Type: Journal Article
• Authors: Pichandi, Chandrasekar; Pitchandi, Perumal; Kumar, S.; Sudharsan, Natteri M.
• Is Part Of: Materials today. Volume 62:Part 2(2022)
• Page Start: 1089
• Page End: 1097
• Publication Date: 2022
• Subjects: CFD -- HAWT -- VAWT -- Wind farm -- ANOVA -- Taguchi method; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.04.317
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Flow of air in a mountainous terrain is highly influenced due to the profile and surface roughness. A fluid flow study prior to the placement of the turbine will greatly enhance the performance by suitably locating the horizontal axis wind turbine (HAWT) for maximum throughput. In addition, the placement of vertical axis wind turbine (VAWT) at a strategic location not only helps increase the overall output for a given space, but also helps in enhancing the output from the HAWT to an extent. In order to find the optimized configuration, an Analysis of Variance (2 k design) using Computational Fluid Dynamics (CFD) is performed to identify the parameters of interest namely, separation between VAWT and HAWT, gap between the blade tips and the hill inclination angle. Further, the parameters were optimized using Taguchi method to enhance the signal to noise ratio, irrespective of the hill inclination by considering the inclination as noise and power as signal. The optimized configuration was implemented in a terrain and the output evaluated and performance improvement presented.