METHODS RELATING TO TURBINE ENGINE CONTROL AND OPERATION

• Main Authors: MCGRATH EDWARD L, HU TAILAI, BILTON TIMOTHY R, ERICKSON DEAN M, NALLAMOTU DURGAPRASAD R
• Format: Patent
• Language: English
• Published: 16.12.2010
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; LIGHTING; MECHANICAL ENGINEERING; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To provide a device, a method, and/or a system for controlling the temperature of fuel so that the fuel can be consistently supplied to a combustor at a proper temperature in consideration of the heating value and target modified Wobbe index evaluation of an engine. SOLUTION: This method controls the operation of a turbine engine provided with a heat exchange portion 52, a heating value meter, a cold leg bypass 76 comprising an alternate fuel pipe bypassing the heat exchanging portion 52, and one or more valves for controlling the amount of the fuel guided through the heat exchange portion 52. The method comprises a step of measuring the heating value of the fuel, a step of determining the target temperature range based on the heating value and a target modified Wobbe index range, and a step of controlling the fuel that bypasses the heat exchange portion 52 such that the temperature of the fuel is within the target temperature range. COPYRIGHT: (C)2011,JPO&INPIT