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The Journey

Progress. Innovation. Sustainability.

Led by Anthony Fenwick-Wilson, in association with Professor Mark Cross and his team at Swansea University, Crossflow Energy developed Computational Fluid Dynamics (CFD) capabilities to model the complex air flow in a Crossflow turbine which required validation in real world conditions.

Our turbine design concept utilises both drag and lift and shielding in a subtle complex mix to capture the fluid energy in an effective manner at low tip speed ratios. The first experimental wind turbine model (C-feg) was designed, built and tested at MIRA, one the largest wind tunnels in the UK, to successfully validate the CFD predictions.

The technology was further explored in a marine current environment by building a test turbine (AQUA-feg) and running tests in the water flume tank at IFREMER in Boulogne Sur Mer, France. These experiments allowed us to determine the turbine performance in different Reynolds number scenarios.

Both the CFD modelling and wind tunnel tests have shown that Crossflow Energy had invented a revolutionary and potentially disruptive technology. To continually improve the CFD, a 22m R&D prototype (X-feg) was erected and  installed at the Test Site in Port Talbot, South Wales. The underlying research in this major design activity has been published in leading research journals and the technology is now globally patented.

The Crossflow Energy team are now ready for the next stage of our technology evolution, focusing on the successful development and installation of a Crossflow Prototype IES unit including the wind turbine, solar PV, battery storage and smart control system due to be commissioned in December 2018.

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Further validation of the technology in a marine current environment was undertaken by building a test turbine (AQUA-feg) and extensive tests run in the water flume tank at IFREMER in Boulogne Sur Mer, France.  The experiments allowed us to determine the turbine performance in different Reynolds number scenarios.

Watch Video

Services

Both the CFD modelling and wind tunnel tests have shown that Crossflow Energy had invented a revolutionary and potentially disruptive technology. To continually improve the CFD, a 22m R&D prototype (X-feg) was erected and  installed at the Test Site in Port Talbot, South Wales. The underlying research in this major design activity has been published in leading research journals and the technology is now globally patented.

Watch Video

The Crossflow Team are now ready for the next stage of their technology evolution and acknowledge below the invaluable contributions made during every stage of the development of the technology.

Key research publications:

  1. Rolland, M. Thatcher, W. Newton, A.J. Williams, T. N. Croft, D.T. Gethin, and M. Cross, Benchmark experiments for simulations of a vertical axis wind turbine, Applied Energy, 111, 1183-1194 (2013) DOI: 10.1016/j.apenergy.2013.06.042
  2. Rolland, W. Newton, A.J. Williams, T. N. Croft, D.T. Gethin, and M. Cross, Design by simulation of a vertical axis wind turbine device with experimental validation, Applied Energy, 111, 1195-1203 (2013) DOI 10.1016/j.apenergy.2013.04.026
  3. A. Rolland, M. Thatcher, R. Ellis, B. Gaurier, T. N. Croft and M. Cross, Performance assessment of a vertical axis turbine in a marine current flume tank and CFD modelling, Int Jnl Marine Engineering, 12, 35-45 (2015)
  4. Hafezi, S. Rolland, D. McBride, T.N. Croft, M. Cross and R. Ellis, A CFD case study of using turbulence models for evaluating the performance of a drag based vertical axis wind turbine, ACME Conference CD Proceedings, Swansea University, April 2015
  5. M Kear, B Evans, R Ellis, S Rolland, Computational Aerodynamic Optimisation of Vertical Axis Wind Turbine Blades, Appl Math Modelling, 40, 1038-1051 (2016)