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US 2018/0031229 A1Published application
Perforated flame holder and system including protection from abrasive or corrosive fuel
AssigneeClearsign Combustion Corporation
InventorsDOUGLAS W. KARKOW, JOSEPH COLANNINO, JAMES K. DANSIE, JESSE DUMAS, CHRISTOPHER A. WIKLOF
Life of this patent
Estimating the term…
Abstract
A burner system that employs a perforated flame holder and is configured to combust a powdered solid fuel includes a structure configured to protect the perforated flame holder from erosion caused by particles of the solid fuel.
Claims51
1-74. (canceled)
A combustion system, comprising:
- a perforated flame holder, including:
- an input face,
- an output face on a side opposite from, and substantially parallel to the input face, and
- a plurality of apertures extending between the input face and the output face;
- an electrically conductive erosion guard adjacent to the input face and configured to protect the perforated flame holder from erosion;
- an electrically conductive counter electrode adjacent to the output face;
- and
- a voltage source configured to generate a plasma within the perforated flame holder by applying a voltage between the wear structure.
5 more elements
A combustion system, comprising:
- a perforated flame holder, including:
- an input face,
- an output face on a side opposite from the input face, and
- a plurality of apertures extending between the input face and the output face;
- and
- a wear surface adjacent to the input face and configured to protect the perforated flame holder from erosion.
3 more elements
A method, comprising:
- emitting, from a fuel nozzle, a fuel stream that includes entrained particles of solid fuel;
- receiving the fuel stream into an input face of a perforated flame holder;
- combusting the particles of solid fuel within apertures extending through the perforated flame holder;
- and
- limiting erosion of the perforated flame holder by the particles of solid fuel.
2 more elements
A combustion system, comprising:
- a perforated flame holder, including:
- an input face,
- an output face on a side opposite from, and substantially parallel to the input face, and
- a plurality of apertures extending between the input face and the output face;
- an electrically conductive erosion guard adjacent to the input face and configured to protect the perforated flame holder from erosion;
- an electrically conductive counter electrode adjacent to the output face;
- and
- a voltage source configured to generate a plasma within the perforated flame holder by applying a voltage between the wear structure.
5 more elements
Dependencies are inferred from the claim text.