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Title: Flashback detection sensor for lean premix fuel nozzles

Abstract

A sensor for detecting the flame occurring during a flashback condition in the fuel nozzle of a lean premix combustion system is presented. The sensor comprises an electrically isolated flashback detection electrode and a guard electrode, both of which generate electrical fields extending to the walls of the combustion chamber and to the walls of the fuel nozzle. The sensor is positioned on the fuel nozzle center body at a location proximate the entrance to the combustion chamber of the gas turbine combustion system. The sensor provides 360.degree. detection of a flashback inside the fuel nozzle, by detecting the current conducted by the flame within a time frame that will prevent damage to the gas turbine combustion system caused by the flashback condition.

Inventors:
 [1];  [1];  [1];  [1];  [2];  [1]
  1. Morgantown, WV
  2. (Morgantown, WV)
Issue Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
982805
Patent Number(s):
6,429,020
Application Number:
09/585,540
Assignee:
The United States of America as represented by the United States Department ( CHO
DOE Contract Number:  
FETC
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Thornton, Jimmy Dean, Richards, George Alan, Straub, Douglas L, Liese, Eric Arnold, Trader, Jr., John Lee, and Fasching, George Edward. Flashback detection sensor for lean premix fuel nozzles. United States: N. p., 2002. Web.
Thornton, Jimmy Dean, Richards, George Alan, Straub, Douglas L, Liese, Eric Arnold, Trader, Jr., John Lee, & Fasching, George Edward. Flashback detection sensor for lean premix fuel nozzles. United States.
Thornton, Jimmy Dean, Richards, George Alan, Straub, Douglas L, Liese, Eric Arnold, Trader, Jr., John Lee, and Fasching, George Edward. Tue . "Flashback detection sensor for lean premix fuel nozzles". United States. https://www.osti.gov/servlets/purl/982805.
@article{osti_982805,
title = {Flashback detection sensor for lean premix fuel nozzles},
author = {Thornton, Jimmy Dean and Richards, George Alan and Straub, Douglas L and Liese, Eric Arnold and Trader, Jr., John Lee and Fasching, George Edward},
abstractNote = {A sensor for detecting the flame occurring during a flashback condition in the fuel nozzle of a lean premix combustion system is presented. The sensor comprises an electrically isolated flashback detection electrode and a guard electrode, both of which generate electrical fields extending to the walls of the combustion chamber and to the walls of the fuel nozzle. The sensor is positioned on the fuel nozzle center body at a location proximate the entrance to the combustion chamber of the gas turbine combustion system. The sensor provides 360.degree. detection of a flashback inside the fuel nozzle, by detecting the current conducted by the flame within a time frame that will prevent damage to the gas turbine combustion system caused by the flashback condition.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {8}
}

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