Chandrashekar L Brahmasandra

US Patent:

20080115482, May 22, 2008

Filed:

Oct 15, 2007

Appl. No.:

11/872154

Inventors:

Matthew J. LaGrow - Davenport FL, US
Damien G. Teehan - St. Cloud FL, US
Chandrashekar Brahmasandra - Oviedo FL, US
Janarthanan Venkataraghavan - Orlando FL, US

Assignee:

SIEMENS POWER GENERATION, INC. - Orlando FL

International Classification:

F02C 9/28

US Classification:

60 39281, 60734

Abstract:

A gas turbine engine that includes a compressor, a combustion stage, a turbine assembly, a fuel gas feed system for supplying fuel gas to a combustion stage of the gas turbine, and an integrated fuel gas characterization system. The integrated fuel gas feed system can include a buffer tank. The integrated fuel gas characterization system for determining the amount of energy provided by the fuel prior to combustion of the fuel in the combustion stage. The integrated fuel gas characterization system minimizes megawatt swings by adjusting the operating parameters of the gas turbine engine based on the rate of change in fuel gas energy content. The integrated fuel gas characterization system also provides improved turbine engine start-up reliability by tuning the turbine engine operating parameters using fuel gas energy content measurements obtained prior to actual start-up.