Boots – shoes – and leggings
Patent
1993-06-22
1995-03-28
Gordon, Paul
Boots, shoes, and leggings
364150, 364151, 364494, 364495, G05B 1304
Patent
active
054023327
ABSTRACT:
A method for optimizing the efficiency of a set of machines comprising a double-controlled turbine and a generator. A correlation is determined between the efficiency .beta., flow Q, variable height of fall H, gate opening .DELTA..gamma. and runner opening .phi. on a model set of machines by test series. The determination yields a model optimum curve for the respective height of fall, the model optimum curve having the optimum gate opening as a function of flow and runner opening. An optimum efficiency for an operating point of a large-scale system is determined by, based on the model optimum curve, making variations of the gate opening .DELTA..gamma. and of the runner opening .phi. on the large-scale system, the variations being such that the flow of the model set of machines would remain constant for the same variations, and wherein the flow of the large-scale system is also presumed to be constant. The power outputs before and after the variations are compared to determine stepwise the .DELTA..gamma./.phi. operating point with optimum efficiency.
REFERENCES:
patent: 4234925 (1980-11-01), Kitano
patent: 4319320 (1982-03-01), Sato et al.
patent: 4486381 (1984-12-01), Koji et al.
patent: 4770843 (1988-09-01), Taleyarkhan
Gordon Paul
J.M. Voith & GmbH
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