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Title: Combustion Dynamics in Multi-Nozzle Combustors Operating on High-Hydrogen Fuels

Actual gas turbine combustors for power generation applications employ multi-nozzle combustor configurations. Researchers at Penn State and Georgia Tech have extended previous work on the flame response in single-nozzle combustors to the more realistic case of multi-nozzle combustors. Research at Georgia Tech has shown that asymmetry of both the flow field and the acoustic forcing can have a significant effect on flame response and that such behavior is important in multi-flame configurations. As a result, the structure of the flame and its response to forcing is three-dimensional. Research at Penn State has led to the development of a three-dimensional chemiluminescence flame imaging technique that can be used to characterize the unforced (steady) and forced (unsteady) flame structure of multi-nozzle combustors. Important aspects of the flame response in multi-nozzle combustors which are being studied include flame-flame and flame-wall interactions. Research at Penn State using the recently developed three-dimensional flame imaging technique has shown that spatial variations in local flame confinement must be accounted for to accurately predict global flame response in a multi-nozzle can combustor.
Publication Date:
OSTI Identifier:
DOE Contract Number:
FC26-08NT05054; NT0005054
Resource Type:
Technical Report
Research Org:
Pennsylvania State University, University Park, PA (United States)
Sponsoring Org:
Contributing Orgs:
Georgia Inst. of Technology, Atlanta, GA (United States)
Country of Publication:
United States