Managing leaks in a gas turbine system

• US 8,393,160 B2
• Filed: 10/17/2008
• Issued: 03/12/2013
• Est. Priority Date: 10/23/2007
• Status: Active Grant

• Current Assignee: ReductoNox Corp.
• Original Assignee: Flex Power Generation, Inc. (Ener-Core, Inc.)
• Inventors: Prabhu, Edan
• Primary Examiner(s): SUNG, GERALD LUTHER
• Application Number:
  US12/288,238
• Publication Number:
  US 20090100821A1
• Time in Patent Office: 1,607 Days
• Field of Search: 607/72, 607/74, 607/79, 60/390.91, 60/391.7
• US Class Current: 60/779
• CPC Class Codes: F02C 3/14 characterised by the arrangement of the combustion chamber in the plant combustion chambers per se F23R; F02C3/205 takes precedence
• CPC Class Codes: F02C 7/2365 comprising an air supply system for the atomisation of fuel

Abstract

A mixture of air and fuel is compressed in a compressor of a gas turbine system. The gas turbine system includes components that define one or more fuel leak locations, and leaked fuel is directed from the one or more leak locations to a reaction chamber of the gas turbine system. At least a portion of the leaked fuel is oxidized in the reaction chamber. The energy released by oxidation of the leaked fuel can be converted to mechanical motion.

Claims

1. A method for managing leaks containing fuel in a gas turbine system, the method comprising:

directing a compressed air and fuel mixture through a primary flow path through components of the gas turbine system, the components including a heat exchanger, a first reaction chamber, and a second reaction chamber;

receiving the compressed air and fuel mixture at a plurality of junctions between the components of the gas turbine system along the primary flow path;

directing a portion of the compressed air and fuel mixture, leaked from at least one of the plurality of junctions along a first leak path, to the second reaction chamber, downstream of the first reaction chamber, whereby the first leak path bypasses the heat exchanger; and

oxidizing at least a portion of the leaked compressed air and fuel mixture in the second reaction chamber.

2. The method of claim 1, further comprising converting energy released by oxidation of the leaked compressed air and fuel mixture into mechanical motion.

3. The method of claim 1, wherein oxidizing at least a portion of the leaked compressed air and fuel mixture in the second reaction chamber comprises raising a temperature of the leaked compressed air and fuel mixture to a temperature at or above an auto-ignition temperature of the fuel.

4. The method of claim 1, further comprising directing another portion of the compressed air and fuel mixture, leaked from a junction along the primary flow path between the heat exchanger and the first reaction chamber, into a second leak path to the second reaction chamber, whereby the second leak path bypasses the first reaction chamber.

5. The method of claim 1, whereby the first leak path bypasses the first reaction chamber.

6. A method for managing leaked fuel in a gas turbine system, the method comprising:

directing a compressed air and fuel mixture along a primary flow path through a heat exchanger, a first reaction chamber, and a second reaction chamber of a gas turbine system;

receiving the compressed air and fuel mixture at a leak location along the primary flow path, the leak location allowing the compressed air and fuel mixture to leak along a first leak path from upstream of the primary reaction chamber to downstream of the primary reaction chamber;

directing a portion of the compressed air and fuel mixture, leaked from the leak location, along the first leak path to the secondary reaction chamber, whereby the first leak path bypasses the heat exchanger; and

oxidizing at least a portion of the leaked compressed air and fuel mixture in the secondary reaction chamber.

7. The method of claim 6, further comprising converting energy released by oxidization of the leaked compressed air and fuel mixture into mechanical motion.

8. The method of claim 6, wherein the secondary reaction chamber is downstream of the primary reaction chamber.

9. The method of claim 6, wherein oxidizing at least a portion of the leaked compressed air and fuel mixture in the secondary reaction chamber comprises raising a temperature of the leaked compressed air and fuel mixture to a temperature at or above an auto-ignition temperature of the fuel.

10. The method of claim 6, further comprising directing another portion of the compressed air and fuel mixture, leaked from another leak location along the primary flow path between the heat exchanger and the first reaction chamber, into a second leak path to the second reaction chamber, whereby the second leak path bypasses the first reaction chamber.