Abstract
The paper deals with the validation of a wave by wave approach for the calculation of the wave loadings exerted on an overtopping type Wave Energy Converter named Seawave Slot-Cone Generator (SSG). The prediction method, originally developed for regular waves, employs the Iribarren number (Battjes, 1974), the slope parameter (Svendsen, 2006) and the Linear thrust parameter (Buccino et al., 2015) as main predictors. The approach has been tested against five 2-D random wave tests, carried out in view of the design of a new pilot plant to be located along the Norwegian coast.
Highlights
The wave energy has the potential to be a valuable contributor to a low-carbon energy mix, since beside being very abundant (Brooke, 2003; Falnes, 2002; Contestabile et al, 2015), it has a different geographic distribution, greater predictability and less intermittency compared to wind and solar
Despite the large research activity, which studied the interaction between Wave Energy Converters (WECs) and the Marine Environment (e.g. Azzellino et al, 2013) a number of prototype power units were destroyed in storms (Falcão, 2010)
The incoming waves running up the structure, enter it and, on their way back to sea, move a turbine connected to a power unit
Summary
The wave energy has the potential to be a valuable contributor to a low-carbon energy mix, since beside being very abundant (Brooke, 2003; Falnes, 2002; Contestabile et al, 2015), it has a different geographic distribution, greater predictability and less intermittency compared to wind and solar. PREVIOUS STUDIES The first study on the structural response of SSG was conducted by Vicinanza and Frigaard (2008) They examined the behavior of a 1:60 model of the Kvitsøy pilot plant subjected to several random sea states and compared the results with the Takahashi et al (1994) method for sloping top caisson breakwaters. Further analysis (Vicinanza et al(2011); Buccino et al(2012)) induced to the conclusion that among the formulae of the Japanese design practice, the method proposed by Tanimoto and Kimura (1985) for trapezoidal monolithic breakwaters, could be reasonably employed for SSGs. Recently, Buccino et al (2015b) proposed a set of design equations based on results obtained from regular wave tests conducted in the Small Scale Channel of the Laboratory of Coastal Engineering at the University of Naples "Federico II". The map allows to predict the breaker type and the loading features at the wall
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