Active measurement of gas flow temperature, including in gas turbine combustors
US9709448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Nov 20, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2241/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Active acoustic pyrometry-based gas flow temperature measurement, such as for monitoring of gas turbine combustors, including industrial gas turbine (IGT) combustors is incorporated into the combustion monitoring and control system by addition of an acoustic transmitter or acoustic transceiver that transmits a sound wave in a line-of-sight with a plurality of acoustic sensors, such as dynamic pressure sensors. For temperature measurement, in some embodiments sound transmission time-of-flight that is directed generally transverse the gas flow path is measured by the controller and correlated with gas flow temperature along the line-of-sight. In other embodiments line-of-sight correlated gas flow temperatures in up and down stream planar paths are interpolated. In an integrated thermoacoustic pressure-based sensor and monitoring/control system embodiment, the controller determines absolute active path temperatures with acoustic transmission and time-of-flight analysis techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.