The Research on the Wave Energy System with Floating Twin-Hull Structure

• Main Authors: Yu-ShuHsu, 徐于淑
• Other Authors: Ming-Chung Fang
• Format: Others
• Language: en_US
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/76324846928472440075

碩士 === 國立成功大學 === 系統及船舶機電工程學系碩博士班 === 101 === The main goal of the thesis is to study the feasibility of applying the floating close-type twin hull body as the wave energy generating system instead of the existing fixed-type oscillating water column system. The motion response of the floating twin hull body is calculated based on the 2D strip theory and verified by the experiments. With the results of the calculated relative wave elevation between the body and wave surface, we can estimate the amount of the compressed air in the air chamber. Consequently the electric power produced by the system can be obtained through the air kinetic energy, water column speed and blade outlet air speed. Two air chambers incorporating with two cascaded Savonius blades are adopted in the present twin hull closed-type body. The optimal parameters for the present twin hull body design are based on the draft, twin hull body spacing and the wave period. The sea area in Cheng-Kung is selected as the test site in the present study. The calculations of the wave-induced electric power through the floating- and fixed- types system with respect to different draft and spacing have been made based on the wave data in that area. From the results, we can find that the floating twin hull body has the better power-generating efficient if the adequate spacing is selected and It also equips the more flexible design potentials.