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High pressure ratio twin spool industrial gas turbine engine with dual flow high spool compressor

United States Patent Application

20160305261
A1
View the Complete Application at the US Patent & Trademark Office
An industrial gas turbine engine for electrical power production includes a high pressure spool and a low pressure spool in which the low pressure spool can be operated from full power mode to zero power mode when completely shut off, where the low pressure spool is operated at high electrical demand to supply compressed air to the high pressure compressor of the high pressure spool, and where turbine exhaust is used to drive a second electric generator from steam produced in a heat recovery steam generator. The high pressure spool includes a high pressure compressor with a inner compressed air flow path and an outer compressed air flow path in which a higher pressure supplies cooling to a turbine airfoil that is then discharged into a combustor of the engine.
Orosa, John A (Palm Beach Gardens, FL), Brostmeyer, Joseph D (Jupiter, FL)
15/ 092,292
April 6, 2016
GOVERNMENT LICENSE RIGHTS [0002] This invention was made with Government support under contract number DE-FE0023975 awarded by Department of Energy. The Government has certain rights in the invention.