Anthony J Conti

US Patent:

56857063, Nov 11, 1997

Filed:

Aug 28, 1995

Appl. No.:

8/519701

Inventors:

Stuart Hersh - New City NY
Dan V. Giovanni - Berkeley CA
Stephen E. Kerho - Mission Viejo CA
Anthony V. Conti - Patterson NY

Assignee:

Electric Power Research Institute - Palo Alto CA

International Classification:

F23C 500

US Classification:

431 8

Abstract:

A fluid atomizer and spraying means which is made up of: a mixing chamber into which the fluid to be atomized and the atomizing gas are introduced and in which the fluid is admixed with and dispersed in the gas; a generally conical nozzle means extending from the mixing chamber through which the mixed fluid and gas are forced; and a chamber into which the atomized mixed fluid and gas is sprayed. The conical nozzle means is suitably a relatively narrow frustro-conical passageway which contains support-spacer means which is generally parallel to the direction of flow through the passageway. At least one such support-spacer means is provided which extends from the end of the passageway proximate to the mixing chamber to the end of the passageway proximate to the chamber into which the mixture is sprayed. The preferred use of this apparatus is in atomizing fuel oil with steam and spraying such atomized mixture into a combustion chamber where it is contacted with combustion air. The amount of effluent NOX is reduced and limited by the use of this configuration by creating alternating fuel-rich and air-rich spatial distribution, and allowing the amount of stoichiometric excess air to be severely limited, while causing the substantially complete combustion of the fuel oil.

US Patent:

6089170, Jul 18, 2000

Filed:

Dec 17, 1998

Appl. No.:

9/215602

Inventors:

Anthony V. Conti - Lake Mohegan NY
Anthony Facchiano - San Carlos CA
Dan V. Giovanni - Berkeley CA
James Lucente - New City NY
Michael W. McElroy - Los Atlos CA

Assignee:

Electric Power Research Institute, Inc. - Palo Alto CA

International Classification:

F23C 100
F23C 112

US Classification:

110262

Abstract:

A low NOx gas combustor includes an air injection mechanism to create a combustion air path. A set of arc-shaped gas injector arrays are formed in an annular configuration. Each arc-shaped gas injector array injects an arc-shaped stream of gas that intersects with the combustion air path to produce a fuel rich flame segment that is separated from an adjacent fuel rich flame segment from an adjacent arc-shaped gas injector array by an air rich zone. The interaction between the fuel rich flame segment and the air rich zone results in low NOx combustion of the gas.