Combustor oscillating pressure stabilization and method

Title: Combustor oscillating pressure stabilization and method

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Abstract

High dynamic pressure oscillations in hydrocarbon-fueled combustors typically occur when the transport time of the fuel to the flame front is at some fraction of the acoustic period. These oscillations are reduced to acceptably lower levels by restructuring or repositioning the flame front in the combustor to increase the transport time. A pilot flame front located upstream of the oscillating flame and pulsed at a selected frequency and duration effectively restructures and repositions the oscillating flame in the combustor to alter the oscillation-causing transport time.

Inventors:

Gemmen, Randall S. ^[1]; Richards, George A. ^[1]; Yip, Mui-Tong Joseph ^[1]; Robey, Edward H. ^[2]; Cully, Scott R. ^[1]; Addis, Richard E. ^[3]

(Morgantown, WV)
(Westover, WV)
(Smithfield, PA)

Issue Date:: 1998-01-01

Research Org.:: EG & G TECH SVCS OF WV INC

OSTI Identifier:: 871766

Patent Number(s):: 5791889

Assignee:: United States of America as represented by United States (Washington, DC) NETL

DOE Contract Number:: AC21-90MC26328

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: combustor; oscillating; pressure; stabilization; method; dynamic; oscillations; hydrocarbon-fueled; combustors; typically; occur; transport; time; fuel; flame; front; fraction; acoustic; period; reduced; acceptably; levels; restructuring; repositioning; increase; pilot; located; upstream; pulsed; selected; frequency; duration; effectively; restructures; repositions; alter; oscillation-causing; selected frequency; pilot flame; located upstream; pressure oscillations; flame front; oscillating pressure; dynamic pressure; /431/60/

Citation Formats


                    Gemmen, Randall S., Richards, George A., Yip, Mui-Tong Joseph, Robey, Edward H., Cully, Scott R., and Addis, Richard E. Combustor oscillating pressure stabilization and method.  United States: N. p., 1998. 
        Web.

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                    Gemmen, Randall S., Richards, George A., Yip, Mui-Tong Joseph, Robey, Edward H., Cully, Scott R., & Addis, Richard E. Combustor oscillating pressure stabilization and method.  United States.

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                    Gemmen, Randall S., Richards, George A., Yip, Mui-Tong Joseph, Robey, Edward H., Cully, Scott R., and Addis, Richard E. Thu .  
        "Combustor oscillating pressure stabilization and method".  United States.  https://www.osti.gov/servlets/purl/871766.

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@article{osti_871766,

  title        = {Combustor oscillating pressure stabilization and method},

  author       = {Gemmen, Randall S. and Richards, George A. and Yip, Mui-Tong Joseph and Robey, Edward H. and Cully, Scott R. and Addis, Richard E.},

  abstractNote = {High dynamic pressure oscillations in hydrocarbon-fueled combustors typically occur when the transport time of the fuel to the flame front is at some fraction of the acoustic period. These oscillations are reduced to acceptably lower levels by restructuring or repositioning the flame front in the combustor to increase the transport time. A pilot flame front located upstream of the oscillating flame and pulsed at a selected frequency and duration effectively restructures and repositions the oscillating flame in the combustor to alter the oscillation-causing transport time.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {1}

}

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