A wound composite material wheel has been developed and is intended to be used for many purposes. One of these applications is marine current turbine. Diffuser-augmented turbines are capable of concentrating the energy in water. If a diffuser shaped shroud encloses a conventional horizontal axis turbine, the low pressure at the exit of the diffuser draws a larger mass flow through the turbine. This permits more power to be extracted from the water. In this paper, numerical analysis of a diffuser-augmented composite material marine current turbine (CMMCT) is developed and compared with a conventional bare turbine. The CFD results show that the extracted power of a diffuser-augmented CMMCT can be 5 times larger than the power extracted by a bare turbine of the same turbine area. The results of the analysis provide an insight into the hydrodynamic design and operation of a diffuser-augmented turbine in order to shorten the design period and improve technical performance.
- Advanced Energy Systems Division and Solar Energy Division
Performance Analysis of Diffuser-Augmented Composite Marine Current Turbine Using CFD
- Views Icon Views
- Share Icon Share
- Search Site
Wang, J, Piechna, J, Gower, B, & Mu¨ller, N. "Performance Analysis of Diffuser-Augmented Composite Marine Current Turbine Using CFD." Proceedings of the ASME 2011 5th International Conference on Energy Sustainability. ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C. Washington, DC, USA. August 7–10, 2011. pp. 1273-1278. ASME. https://doi.org/10.1115/ES2011-54620
Download citation file: