Renewable Energy: An International Journal. Dec2013, Vol. 60, p739-745. 7p.
Hydroelectric power plants, Wind turbines, Precision casting, Aerial propellers, Solidification, Computer simulation, Hydraulic turbines, and Thickness measurement
Abstract: The runner blade of a propeller turbine has a complex profile and an uneven thickness, which causes severe and unpredictable problems during the manufacture procedure. This paper describes the manufacture procedure which includes advance computer solidification simulation, lost wax casting process and machining processes of the runner of a pico hydraulic propeller turbine. The runner was manufactured in C99350 nickel bronze alloy. This alloy possesses high toughness along with excellent resistance to cavitation and erosion. The runner can be a viable option for electricity generation in not interconnected zones (NIZ) of the national interconnected electric system in developing countries and can be manufactured locally. [Copyright &y& Elsevier]