Title: Air-fuel micromix injector having multibank ports for adaptive cooling of high temperature combustor

Abstract

A method of using a combustor for high temperature combustion. The combustor is equipped with a showerhead type micromix air-fuel injector. The injector faceplate has its ports concentrically arranged into “banks”, to which delivery of fuel can be controlled on a bank-by-bank basis. During combustor operation, the temperature of the air into the combustor is monitored. If the temperature is above a predetermined threshold, fuel is delivered to fewer than all banks of ports. As a result, the bank(s) of ports to which fuel is not delivered inject only air into the combustion chamber, and the other bank(s) of ports inject the air-fuel mixture as usual.

Inventors:

Coogan, Shane B.; Brun, Klaus

Issue Date:

Tue Jul 12 00:00:00 EDT 2022

Research Org.:

Southwest Research Institute, San Antonio, TX (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1924890

Patent Number(s):

11384939

Application Number:

14/257,847

Assignee:

Southwest Research Institute (San Antonio, TX)

Patent Classifications (CPCs):

F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03G - SPRING, WEIGHT, INERTIA OR LIKE MOTORS

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23L - SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL 

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F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03G - SPRING, WEIGHT, INERTIA OR LIKE MOTORS

F03G6/064 - {having a gas turbine cycle, i.e. compressor and gas turbine combination}

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23L - SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL 

F23L2900/15044 - Preheating combustion air by heat recovery means using solar or other clean energy

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS

F23R3/16 - with devices inside the flame tube or the combustion chamber to influence the air or gas flow
F23R3/286 - {having fuel-air premixing devices

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E10/46 - Conversion of thermal power into mechanical power, e.g. Rankine, Stirling solar thermal engines

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DOE Contract Number:  

EE0005805

Resource Type:

Patent

Resource Relation:

Patent File Date: 04/21/2014

Country of Publication:

United States

Language:

English