A Novel Concept for Floating Offshore Wind Turbines:
Recent developments in the concept and investigation on fluid interaction with the rotating foundation
Luca Vita; Frederik Zahle ; Uwe S. Paulsen; Troels F. Pedersen; Helge A. Madsen; Flemming Rasmussen
In: Proceedings of the ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. OMAE2010. June 6-11, 2010, Shanghai, China (8 p.)
Abstract:
This paper describes the recent developments regarding a new concept for deep sea offshore vertical axis wind turbines. The concept utilizes a ylindrical foundation rotating in the water. The 2D Navier-Stokes solver EllipSys2D has been used to investigate the interaction between the rotating foundation and a water flow stream passing the turbine. Lift and drag forces, and the friction moment on the rotating foundation of the turbine have been computed. The calculations are repeated for different operating conditions of the wind turbine on a range of rotational speeds. The Reynolds number, based on the diameter of the foundation, is 5 mill.
A novel floating offshore wind turbine concept: new developments
Luca Vita; Uwe Schmidt Paulsen; Troels Friis Pedersen
Presented at: 2010 European Wind Energy Conference and Exhibition. Warsaw (PL), 20-23 Apr, 2010
Abstract:
A novel concept for offshore floating vertical axis wind turbines (Deep Wind) was presented by the authors in [1]. The concept consists of a Darrieus rotor whose tower is extended below the sea level, in order to act as spar buoy. This paper deals with new developments of the novel concept. Three configurations, each with different degrees of freedom, have been selected to be presented in this paper. The first configuration, characterized by the lowest number of degrees of freedom, is investigated by an aero-elastic code.
Deep Wind : A novel floating wind turbine concept
Luca Vita; Uwe Schmidt Paulsen; Troels Friis Pedersen; Helge Aagaard Madsen; Flemming Rasmussen
In: Windtech International, vol: 6(4), p. 29-31 (2010)
A novel floating offshore wind turbine concept
Luca Vita; Uwe Schmidt Paulsen; Troels Friis Pedersen; Helge Aagaard Madsen; Flemming Rasmussen
Presented at: 2009 European Wind Energy Conference and Exhibition. Marseille (FR), 16-19 Mar, 2009
In: EWEC 2009 Proceedings online : EWEC, 2009
(6 p.)
Abstract:
This paper will present a novel concept of a floating offshore wind turbine. The new concept is intended for vertical-axis wind turbine technology. The main purpose is to increase simplicity and to reduce total costs of an installed offshore wind farm. The concept is intended for deep water and large size turbines. |