Effect of best position blade pitching on power coefficient of VAWT at different tip speed ratio by SST & DMST model

• Main Authors: Kavade Ramesh K., Ghanegaonkar Pravin M.
• Format: Article
• Language: English
• Published: University of Belgrade - Faculty of Mechanical Engineering, Belgrade 2018-01-01
• Series: FME Transactions
• Subjects: vertical axis wind turbine; aerodynamics; single stream tube model; double multiple stream tube model; blade pitch angle; coefficient of power
• Online Access: https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2018/1451-20921804560K.pdf

This paper analyses the effect of best position blade pitching on the power coefficient of vertical axis wind turbine (VAWT) at different tip speed ratios (TSRs). Single Stream Tube (SST) and Double Multiple Stream Tube (DMST) models are used for present analysis. The results indicate that the best pitch position blade method improves the self-starting capacity and power coefficient of turbine. The best position blade pitching curve-1 with 45° pitch angles gives maximum power coefficient for TSRs of 0.5 and the best position blade pitching curve-5 with 15° pitch angle gives maximum coefficient of power about 0.49 for TSR 2.5. The results of SST model are compared with DMST model and presented at the end of this paper.