A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Numerical Analysis and Power Prediction of a Savonius Hydrokinetic Turbine
Abstract Savonius hydrokinetic turbine presents an attractive option of environmentally friendly and cost-effective electric generation in remote areas nearer to rivers and canals. In this research paper, a numerical investigation was carried out by solving Reynolds-averaged Navier–Stokes equations (RANSE) using finite volume CFD software ANSYS-Fluent at a Reynolds number of 1.32 × 105. Consequently, numerical results are validated with previous experiments. Output power, moment coefficient, and power coefficient of turbine were used to analyze the characteristics of turbine performance. The Savonius turbine was tested at various tip-speed ratios (λ) for obtaining corresponding moment coefficient. The maximum moment coefficient was around 0.215 at λ of 0.69, where the highest coefficient of power was about 0.15. With further increase in tip-speed ratio, both moment coefficient and power coefficient were found decreasing. Possible power production from the hydrokinetic turbine is also estimated. A more efficient utilization of flows in rivers and canals for electrical generation in rural areas is expected as result of the present research.
Numerical Analysis and Power Prediction of a Savonius Hydrokinetic Turbine
Abstract Savonius hydrokinetic turbine presents an attractive option of environmentally friendly and cost-effective electric generation in remote areas nearer to rivers and canals. In this research paper, a numerical investigation was carried out by solving Reynolds-averaged Navier–Stokes equations (RANSE) using finite volume CFD software ANSYS-Fluent at a Reynolds number of 1.32 × 105. Consequently, numerical results are validated with previous experiments. Output power, moment coefficient, and power coefficient of turbine were used to analyze the characteristics of turbine performance. The Savonius turbine was tested at various tip-speed ratios (λ) for obtaining corresponding moment coefficient. The maximum moment coefficient was around 0.215 at λ of 0.69, where the highest coefficient of power was about 0.15. With further increase in tip-speed ratio, both moment coefficient and power coefficient were found decreasing. Possible power production from the hydrokinetic turbine is also estimated. A more efficient utilization of flows in rivers and canals for electrical generation in rural areas is expected as result of the present research.
Numerical Analysis and Power Prediction of a Savonius Hydrokinetic Turbine
John, Bony (author) / Thomas, Rony N (author) / Varghese, James (author)
2018-07-15
10 pages
Article/Chapter (Book)
Electronic Resource
English
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