ABSTRACT
Electrical energy needs keep growing as technology and information advances, it is necessary for the existence of renewable energy as a source of electrical energy in the future. One of them is sea wave energy. In previous studies, it has been discussed about cylindrical buoy type sea wave power plant with dimensions of length variation of the swing arm and the length of the buoy to the energy generated. Therefore this research will discuss about the influence of different inertia due to the ballast mass-base swing arm distance variation and the generator wire diameter variation, on the laboratory scaled sea wave power generator, to the generated electrical energy. The method used is experimental method with laboratory scale. Experiment has performed by variations are the ballast mass – base swing arm distance, 7 cm, 15 cm and 23 cm, and the generator wire diameter, 0.2 mm, 0.3 mm and 0.4 mm. The ballast mass – base swing arm distance does not give the significant effect. Whereas the greater generator wire diameter gives the higher generated power. The greatest occurs on the 0.4 mm wire diameter with value 0.02438 W and the system has 2.7% of efficiency.
Keywords: wire diameter; DC generator; ballast mass; cylindrical buoy; sea wave power generator.