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Real-time combustion controls and diagnostics sensors (CCADS)

United States Patent

May 3, 2005
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
The present invention is directed to an apparatus for the monitoring of the combustion process within a combustion system. The apparatus comprises; a combustion system, a means for supplying fuel and an oxidizer, a device for igniting the fuel and oxidizer in order to initiate combustion, and a sensor for determining the current conducted by the combustion process. The combustion system comprises a fuel nozzle and an outer shell attached to the combustion nozzle. The outer shell defines a combustion chamber. Preferably the nozzle is a lean premix fuel nozzle (LPN). Fuel and an oxidizer are provided to the fuel nozzle at separate rates. The fuel and oxidizer are ignited. A sensor positioned within the combustion system comprising at least two electrodes in spaced-apart relationship from one another. At least a portion of the combustion process or flame is between the first and second electrodes. A voltage is applied between the first and second electrodes and the magnitude of resulting current between the first and second electrodes is determined.
Thornton; Jimmy D. (Morgantown, WV), Richards; George A. (Morgantown, WV), Dodrill; Keith A. (Fairmont, WV), Nutter, Jr.; Roy S. (Morgantown, WV), Straub; Douglas (Morgantown, WV)
The United States of America as represented by the United States Department of Energy (Washington, DC)
09/ 955,582
September 18, 2001
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The United States Government has rights in this invention pursuant to the employer-employee relationship of the U.S. Department of Energy and the inventor.