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Francis inlet scroll at the Grand Coulee Dam Side-view cutaway of a vertical Francis turbine. Here water enters horizontally in a spiral-shaped pipe (spiral case) wrapped around the outside of the turbine's rotating runner and exits vertically down through the center of the turbine. The Francis turbine is a type of water turbine.
MIT's millimeter size turbine will deliver 500–700 Wh/kg (820–1,140 kJ/lb) in the near term, rising to 1,200–1,500 Wh/kg (2,000–2,400 kJ/lb) in the longer term. [ 14 ] A similar microturbine built by the Belgian Katholieke Universiteit Leuven has a rotor diameter of 20 mm and is expected to produce about 1,000 W (1.3 hp).
The machine was a two-bladed 1.25 MW turbine with a 53 m (174 ft) rotor diameter. It ran at a constant speed by adjusting the angle of the blades as the wind speed changed. The turbine was connected to a 600rpm General Electric generator. The generator, the world's largest at the time, was installed on a mountaintop near Rutland, Vermont.
The turbines were built by two partners of James Bay Energy (SEBJ). Units 1, 3, 5, 7, 10, 12, 14 and 16 were built by Marine Industries Limited (MIL), while units 2, 4, 6, 8, 9, 11, 13 and 15 were built by Canadian General Electric (alternators) and Dominion Engineering Works (turbines). The two groups have somewhat different characteristics.
English: Mežica, a Francis turbine, exhibited beside the dam of the former hydroelectric power plant Pustnik (1917-1967). The turbine was actually in operation in the former engine room, locted approx. 500 m further down the Meža river.
The Capstone microturbine is a turboshaft engine with a single coupled shaft carrying the compressor, turbine, and generator. Idealized gas turbine operation is represented by the Brayton cycle. In this machine, intake air is drawn over the generator (G) to cool it and is pressurized in the compressor (C); the compressed air then passes through ...
Turbines are sometimes differentiated on the basis of the type of inlet flow, whether the inlet velocity is in axial direction, radial direction or a combination of both. . The Francis turbine is a mixed hydraulic turbine (the inlet velocity has Radial and tangential components) while the Kaplan turbine is an axial hydraulic turbine (the inlet velocity has only axial velocity componen
The two engineers worked on improving the turbine. And in 1848, Francis and Boyden successfully improved the turbine with what is now known as the Francis turbine. Francis's turbine eclipsed the Boyden turbine in power by 90%. In 1855, Francis published these findings in the "Lowell Hydraulic Experiments". [8]
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