John Paul Foote

US Patent:

6640548, Nov 4, 2003

Filed:

Sep 26, 2001

Appl. No.:

09/963282

Inventors:

John Samuel Brushwood - Oviedo FL
Paul Pillsbury - Winter Springs FL
John Foote - Sylacauga AL
Andreas Heilos - Muelheim, DE

Assignee:

Siemens Westinghouse Power Corporation - Orlando FL

International Classification:

F02C 722

US Classification:

60776, 60 39463, 60742

Abstract:

A gas turbine ( ) capable of combusting a low quality gaseous fuel having a ratio of flammability limits less than 2, or a heat value below 100 BTU/SCF. A high quality fuel is burned simultaneously with the low quality fuel to eliminate instability in the combustion flame. A sensor ( ) is used to monitor at least one parameter of the flame indicative of instability. A controller ( ) having the sensor signal ( ) as input is programmed to control the relative flow rates of the low quality and high quality fuels. When instability is detected, the flow rate of high quality fuel is automatically increased in relation to the flow rate of low quality fuel to restore stability.

US Patent:

56303688, May 20, 1997

Filed:

Feb 21, 1995

Appl. No.:

8/395384

Inventors:

Charles L. Wagoner - Tullahoma TN
John P. Foote - Tullahoma TN

Assignee:

The University of Tennessee Research Corporation - Knoxville TN

International Classification:

F23B 700

US Classification:

110234

Abstract:

This invention relates to an improved coal injection and coal feed system for use with a coal-fired firetube boiler. More specifically, the coal injection system of the present invention comprises an educator and a coal delivery tube. The coal feed system of the present invention comprises a coal hopper, gyratable bin, gyration device, discharge plenum and feed conveyor.

US Patent:

54290597, Jul 4, 1995

Filed:

May 24, 1993

Appl. No.:

8/066783

Inventors:

Charles L. Wagoner - Tullahoma TN
John P. Foote - Tullahoma TN

Assignee:

The University of Tennessee Research Corporation - Knoxville TN

International Classification:

F23B 700

US Classification:

110234

Abstract:

A coal-fired firetube boiler and a method for converting a gas-fired firetube boiler to a coal-fired firetube boiler, the converted boiler including a plurality of combustion zones within the firetube and controlled stoichiometry within the combustion zones.