Gas turbine fuel supply method and arrangement
US9909509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2013 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Jan 26, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/80
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine fuel supply method and arrangement is provided. The method of controlling a supply of a fuel to a combustor of a gas turbine having a compressor upstream of the combustor, the method including: supplying the fuel to the combustor; obtaining an inlet air pressure (PT7) at a compressor inlet; obtaining an inlet air temperature (Tinlet) at the compressor inlet; obtaining an outlet air pressure (PT8) at a compressor outlet; estimating a heat input (HIengmodel, HIexpected) of the fuel supplied to the combustor based on the inlet air pressure (PT7), the inlet air temperature (Tinlet) and the outlet air pressure (PT8); comparing the estimated heat input (HIengmodel, HIexpected) with a demanded heat input (FFDEM) to derive an error signal; and controlling a fuel valve regulating the supply of the fuel to the combustor based on the error signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.