Prototype of Shallow-Water Wave Power Generator based on Bi-directional Waves Conversion

Abstract

This research presents prototype of shallow-water wave power generator based on bi-directional waves conversion by changing the movement of shallow-water waves into electrical power. The motional waves are capable of rotating the shaft turbine. This research employed two shaft turbines for transmitting the generator in case of sea waves moving towards shore and off shore. Each blade is 20 cm wide. The shaft of 3-phase generator was connected to shaft turbine via gear box. The 60-watt LED was used as load in the experiment. The experiment is divided into two parts.  Part 1: The simulation of shallow-water waves at frequency of 0.2 Hz, 0.25 Hz, 0.33 Hz and 0.5 Hz, respectively, was carried out. The electrical power generated was then investigated. Part 2: The electrical power generated was measured while using the power generator from shallow-water waves at Pak Meng Beach, Sikao District, Trang Province. The experimental result showed that the power generator generated the maximum electrical power of 37.55 watt when the simulation of shallow-water waves at frequency of 0.5 Hz was implemented. At the coastal area, the frequency and the velocity are 0.27 Hz and 0.51 m/s, respectively. The result found that the shallow-water wave power generator based on bi-directional waves conversion can generate the maximum electrical power of 28.96 watt.