The efficiency and development of Electric Energy from Water flow Energy at Kohhong community Nakhonsawan Province

Abstract

This research studies to build and develop the hydro turbine generator, generated electric energy, by hydrodynamics. We conducted the research at Kohhong, community in Nakhonsawan. The hydro turbine generator radial turbines 20 , 30 , and 40 cm. This research found radial turbine 20 cm which had more effective than other. The efficiency showed in percentage, 36.06 % (20 cm), 14.77 % (30 cm), 12.97 % (40 cm). Then Electricity energy, generated from hydro turbine generator, charged to battery (capacity about 12 Volt 5 Amp). Duration for battery charging abouts in 8 hours in turbine size 20, 10 hours in 30 cm and 40 cm. While the charging form alternating current used 5 hours, saved about 0.3 kWhr/time. The hydro turbine generator had average saving rate as 1,149.75 baht/year and payback period about 6.95 year.