NON-LINEAR FUEL TRANSFER FOR GAS TURBINE

PROBLEM TO BE SOLVED: To provide a method for controlling the rate of transfer between an operation with a gas fuel type and an operation with a liquid fuel type for preventing excessive wear and damage to a gas turbine combustion hardware. SOLUTION: The method includes Step 820 for completing a fue...

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Bibliographische Detailangaben
Hauptverfasser:	BACKMAN STEVE W, IASILLO ROBERT J, FULLER JASON D, ERNST-FORTIN SAMUEL
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for controlling the rate of transfer between an operation with a gas fuel type and an operation with a liquid fuel type for preventing excessive wear and damage to a gas turbine combustion hardware. SOLUTION: The method includes Step 820 for completing a fuel prefill for the oncoming fuel type through a fuel system, and Step 865 for determining if a total fuel demand for the oncoming fuel type is greater than a predetermined flow rate for the oncoming fuel type. The method also includes Steps 840, 855 for selecting a fuel transfer rate and a step for transferring from the offgoing fuel type to the oncoming fuel type at the selected fuel transfer rate. Further, the method includes Step 875 for determining if the offgoing fuel flow rate has decreased below a predetermined flow rate for the offgoing fuel type, Step 875 for selecting a final fuel transfer rate, and Step 880 for completing the transfer from the offgoing fuel type to the oncoming fuel type at a selected final fuel transfer rate. COPYRIGHT: (C)2008,JPO&INPIT