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The frequent outages of electricity by PLN in several regions in Indonesia are no exception in Indramayu, and rising electricity tariffs since the beginning of 2017 have a negative impact on Indonesian people who are very consumptive and dependent on electricity. Wind energy sources in coastal areas of Indonesia are generally one of the potential renewable energy sources (renewable energy resources) that are abundant, environmentally friendly and renewable. Savonius wind turbines can produce relatively high torque even at low wind speeds. To get a large amount of electrical power, a large turbine construction is also needed which also requires a large amount of money, of course. For this reason the dimensions of this wind turbine construction need to be developed. The aspects that have been investigated are blade cross sections, as well as other values. Whereas the arch depth or blade length of type U is still likely to be studied. Therefore it is necessary to do research on type U blade arcs to get more power than before. The numerical method is carried out to determine how much influence the modification of blade geometry has on the absorbed turbine power. The turbine is designed with a number of 2 pieces of blades according to previous research. Parameters varied only on the geometry of the arc length and the width of the blade, other parameters following the previous study. From the results of simulation of radius and cross section width prove there is a geometrical effect in increasing turbine power in a row of 7.78% and 19.76%. The variation of blades that produce the greatest power is in the variations of R 75 and LP 130 blades at wind speeds of 4.8 m / s.

PENGARUH BUSUR SUDU TURBIN ANGIN SAVONIUS TIPE-U MENGGUNAKAN PERANGKAT LUNAK