Wind Tunnel Validation of Double Multiple Streamtube Model for Vertical Axis Wind Turbine
- 1 Energy Research Institute, Nanyang Technological University, Singapore City, Singapore
- 2 Energy Research Institute, Nanyang Technological University, Singapore City, Singapore
- 3 Energy Research Institute, Nanyang Technological University, Singapore City, Singapore
- 4 School of Science and Technology, Singapore University of Social Sciences, Clementi, Singapore
Abstract
The performance and annual energy output have to be predicted to maximize the economic benefits from a wind turbine. Mathematically predicting the performance of Darrieus type lift based turbines are challenging due to the inconsistent angle of attack, blade wake interaction and local induced velocities giving rise to complex flow physics. A reliable and validated mathematical model is therefore essential to optimize the various design parameters prior to manufacture. The objective of the current study is to evaluate widely employed aerodynamic models based on their prediction accuracy, limitations, and computational requirements. Double multiple stream tube models have been discussed in detail and the predictions are experimentally validated through the wind tunnel test of three-bladed H-Darrieus rotor in terms of torque and power coefficient. The possible sources for the deviation between the predicted and measured values have been discussed and concluded with potential solutions.
- Karthikeya, B.R., Negi, P.S. and Srikanth, N. (2016) Wind Resource Assessment for Urban Renewable Energy Application in Singapore. Renewable Energy, 87, 403-414. https://doi.org/10.1016/j.renene.2015.10.010
- Kumar, M., Surya, M.M.R., Sin, N.P. and Srikanth, N. (2017) Design and Experimental Investigation of Airfoil for Extruded Blades. International Journal of Advances in Agricultural and Environmental Engineering (IJAAEE), 3, 2349-1523.
- Kumar, M., Surya, M.M.R. and Srikanth, N. (2017) On the Improvement of Starting Torque of Darrieus Wind Turbine with Trapped Vortex Airfoil. 2017 IEEE International Conference on Smart Grid and Smart Cities (ICSGSC), Singapore, 23-26 July 2017, 120-125. https://doi.org/10.1109/ICSGSC.2017.8038561
- Kumar, M., Surya, M.M.R. and Srikanth, N. (2017) Comparative CFD Analysis of Darrieus Wind Turbine with NTU-20-V and NACA0018 Airfoils. 2017 IEEE International Conference on Smart Grid and Smart Cities (ICSGSC), Singapore, 23-26 July 2017, 108-114. https://doi.org/10.1109/ICSGSC.2017.8038559
- Beri, H. and Yao, Y.X. (2011) Effect of Camber Airfoil on Self-Starting of Vertical Axis Wind Turbine. Journal of Environmental Science and Technology, 4, 302-312. https://doi.org/10.3923/jest.2011.302.312
- Wilson, R.E. and Lissaman, P. (1974) Applied Aerodynamics of Wind Power Machines. Oregon State University, Corvallis.
- Templin, R.J. (1974) Aerodynamic Performance Theory for the NRC Vertical-Axis Wind Turbine. NASA STI/Recon Technical Report N76, National Aeronautical Establishment, Ottawa.
- Strickland, J.H. (1977) A Performance Prediction Model for the Darrieus Turbine, International Symposium on Wind Energy Systems, Cambridge, 7-9 September 1976, C3-39.
- Holme, O. (1977) A Contribution to the Aerodynamic Theory of the Vertical-Axis Wind Turbine. International Symposium on Wind Energy Systems, Cambridge, 7-9 September 1976, C4-55.
- Paraschivoiu, I. (1981) Double-Multiple Streamtube Model for Darrieus in Turbines. In NASA. Lewis Research Center Wind Turbine Dyn. (N82-23684 14-44), 19-25.
- Hirsch, I.H. and Mandal, A.C. (1987) A Cascade Theory for the Aerodynamic Performance of Darrieus Wind Turbines. Wind Engineering, 11, 164-175.
- Mandal, A.C. and Burton, J.D. (1994) The Effects of Dynamic Stall and Flow Curvature on the Aerodynamics of Darrieus Turbines Applying the Cascade Model. Wind Engineering, 18, 267-282