Technical Renovation of a Hydropower Station Based on CFD

If the turbine of a hydropower station does not operate under the optimal working condition for a long time,its operating efficiency will be very low and its runner will be seriously damaged by cavitation.Both of them will lead to serious inefficiency of output.By using CFD software and taking the technical measure of numerical simulation,the defects of internal flow of the old runner of the hydropower station are found out.New runner for the hydropower station is designed in view of these defects.Through the technical renovation of the hydropower station,the renovation cost of the station can be cut down,and the technical renovation period will be shortened.The purpose of increasing the capacity and corrosion prevention can be achieved by only replacing the runner rather than changing other flow passage components of the turbine.The technical renovation of the hydropower station shows that the approach effectively improves the efficiency and output of the turbine,shortens the technical renovation period,reduces the technical renovation cost.As a result,the distinct economic benefit is achieved.