Method and arrangement for controlling fuel supply for a gas turbine
US9938905B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2013 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Nov 27, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/80
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of controlling a supply of a fuel to a combustor of a gas turbine having a compressor upstream of the combustor is provided. The method includes: supplying the fuel to the combustor; obtaining a property value of at least one physical property (PT8, PT7, Tinlet, THBOV) of air used for burning the fuel in the combustor; estimating a heat input (HIengmodel) of the fuel supplied to the combustor based on the property value; measuring a Caloric Value (LCVmea) of the fuel upstream of the combustor; adjusting the estimated heat input (HIengmodel) based on the measured Caloric Value (LCVmea); and controlling a fuel valve regulating the supply of the fuel to the combustor based on the adjusted estimated heat input (HIexpected) and a demanded heat input (FFDEM).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.