Isothermal flow measurements in a gas turbine combustor using a fast flame ionization detector

Publication: Research - peer-reviewJournal article – Annual report year: 2010

Without internal affiliation

  • Author: Read, Robert

    University of Cambridge

  • Author: Hochgreb, S.

    University of Cambridge

View graph of relations

A fast-response flame ionization detector (FFID) has been used to study isothermal gas transport and mixing inside a gas turbine combustion chamber. The large, highly linear dynamic range of the FFID coupled with a frequency response that extends up to approximately 200 Hz can reveal large-scale features of interest in turbulent flows. Experiments were performed in a ground-based test facility simulating high-altitude restart conditions. Pulses of propane were discharged into the core swirler of a fuel injector through a high-speed valve. The mole fraction of this tracer was monitored at various locations inside the combustion chamber. These measurements allowed the identification of recirculation timescales and flow instabilities at different points inside the combustion chamber, providing important insights into the altitude restart process.
Keyword: Gas turbine,Residence time,Flame ionization detector,Altitude relight
Original languageEnglish
JournalMeasurement Science and Technology
Pages (from-to)055107
StatePublished - 2010
Externally publishedYes
CitationsWeb of Science® Times Cited: 1
Download as:
Download as PDF
Select render style:
Download as HTML
Select render style:
Download as Word
Select render style:

ID: 5587176