Grafting of water turbines runner
It is possible to graft upon or hybridize two different types of water turbines' runner in order to attain more perfect performance to meeting engineering needs. The answer is positive and very interesting, as shown in the research experiment in the Hydromachines Laboratory of Gansu University of Technology. Grafting a group of propeller blades (Ns=440 N.KW) on a Francis turbine runner (Ns=200) with certain boundary conditions in the flow areas, a new hybrid multiplex runner performance has been achieved. Its efficiency curve has been improved at high speed and large flow rate operating conditions that could be able to meet the engineering requirements when the head of the hydropower station is lower than normal. Its unit rotation speed is increased about 25% over that of the Francis. The general performance curve of this hybrid runner will be provided in this paper.
- Research Organization:
- Gansu Univ. of Tech., Lanzhou, Gansu
- OSTI ID:
- 6597667
- Report Number(s):
- CONF-831205-
- Journal Information:
- Alternative Energy Sources; (United States), Journal Name: Alternative Energy Sources; (United States); ISSN ALESD
- Country of Publication:
- United States
- Language:
- English
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