Key Laboratory of Clean Energy Utilization and Development of Fujian Province

Xiamen, China

Key Laboratory of Clean Energy Utilization and Development of Fujian Province

Xiamen, China
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He G.,Jimei University | Yang S.,Jimei University | Yang S.,Key Laboratory of Clean Energy Utilization and Development of Fujian Province | He H.,Jimei University | And 2 more authors.
Shuili Fadian Xuebao/Journal of Hydroelectric Engineering | Year: 2015

This paper presents a new array-type device of wave energy generation and describes its working principle. A simulation model for this device was developed and its parameters and finite element mesh were calculated by the method of AQWA. Using this model, we analyzed the RAO parameters of frequency responses for a single float of different sizes and drafts and the characteristics of whole float array under different angles of wave incidence. The results show that for a single float, when its draft is in the range 1.2-1.4 m and its diameter 2.8 m, the RAO parameter is maximized. And for the float array, a greater average amplitude of relatively higher efficiency in capture of wave energy can be achieved at an incidence angle of 22.5° with a small variation in the amplitudes of different floats. © Copyright.


Yang S.,Jimei University | Yang S.,Key Laboratory of Clean Energy Utilization and Development of Fujian Province | Yang S.,The Clean Tech Center | He G.,Jimei University | And 4 more authors.
Shuili Fadian Xuebao/Journal of Hydroelectric Engineering | Year: 2015

A new multipoint direct-drive wave energy converter is presented and the device's working principle is described. The simulation model of the buoys array was established and parameter setting and finite element mesh generation were conducted. This model was used to analyze the hydrodynamic response characteristics of the buoys array under different wave directions with the buoys being in three arrangements including: a circular type, a double rows type and a single row type. The influence of different buoy arrangement types on energy conversion capability has also been examined. Results reveal that the buoy array is more stable and efficient when all of the buoys are arranged in circular type and the best buoy spacing is about 8 to 10 meters. © All right reserved.

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