SIMULATION OF WATER FLOW DISTRIBUTION ON LOW-HEAD PICOHYDRO CAPACITY 2 kW
Keywords:
Design, Picohydro, Low Head, Flow Pattern, CFD SimulationAbstract
The amount of potential water energy in irrigation channels in Indonesia has not been optimally utilized because it has a small flow and low head. This study will simulate a low-head picohydro plant with a net head of 1.5 m whice is easily applied without altering the civil structure of the irrigation canal. The phenomenon of water flow pattern in headtank and horizontal axial turbine intake have an effect on the potential energy of water flow. Potential energy of flow at 0.22 m3/s discharge and 1.86 m head will be simulated using CFD (Computational Fluid Dynamic). The CFD results show that the reverse flow occurs at several positions in the headtank affecting the uniformity of the flow pattern and reducing the potential for utilization of electric water. The simulation results show that the flow power potential for a low-head picohydro generating system is 3190.2 Watt with a fluid velocity passing through a turbine runner of 2.28 m/s.
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