Method for optimizing the efficiency of a set of machines comprising a turbine and a generator
US5402332A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.