SETTLING BASIN MODELING TO REDUCE FLUCTUATION OF SEDIMENT CONCENTRATION ON MHP IRRIGATION CHANNELS

Potential of MHP irrigation channel is suitable for Open Flume Propeller turbine type. The fluctuating process of sediment concentration, making the quality of electrical power deteriorate. This study aims to reduce these influences. This settling basin modeling is divided into 3 design models from 9 scenarios. The condition of MHP in the rain without modeling, voltage deviation Vd = 17, 6%, Frequency deviation fd = 6, 8% and rotation deviation nd = 6, 8%. fluctuation of sediment concentration C between 2,551 (g/l) and 3,864 (g/l) condition of the MHP abnormal operation. With the modeling of the settling basin design III obtained voltage deviation Vd = 3%, frequency deviation nd = 1% and rotation deviation nd = 1% at the fluctuation of sediment concentration C between 1.160 (g/l) and 1.340 (g/ l) resulted in the condition of the MHP operating normal.