A water turbine is one of the most important parts to generate electricity in hydroelectric power plants. The generation of hydroelectric power is relatively cheaper than the power generated by other sources. There are various types of turbines such as Pelton Turbine, Cross-flow Turbine, and Francis Turbine which are being used in Myanmar. In this paper, one of the hydroelectric power plant which is used Vertical Francis Turbine type. The Francis turbine is one of the powerful turbine types. Francis Turbine is a type of water turbine that was developed by James Bicheno Francis. Hydroelectric Power Plant, Thaukyegat No.2, is selected to design the runner. This Vertical Francis Turbine is designed to produce 40 MW electric powers from the head of 65 m and flow rate of 70.10m3/s. The design parameters of 40 MW Vertical Francis Turbine runner’s diameter, height, elevation, shaft, numbers of blades and blade angles are calculated. The initial value of turbine output is assumed as 94%. The number of guide blades and runner blades are also assumed. The detailed design calculations of the runner are carried out. Moreover, the selection of the turbine type according to the head, the flow rate and the power are also performed.
Hydropower plant, Francis turbine, Head, Blade
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