METHOD AND APPARATUS FOR CONTROLLING THE COMBUSTION IN A GASTURBINE

A method and apparatus are described for controlling the combustion in a gas turbine. The method includes measuring , by means of one or two calorimeters, the temperature, calorific value and relative density of a gaseous fuel in order to determine the Wobbe index, comparing the Wobbe index value me...

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Bibliographische Detailangaben
Hauptverfasser:	BEI, SIMONE, ASTI, ANTONIO, STEWART, JESSE, PACI, MARIATERESA, ORGERO, FRANCESCO MARIA, TONNO, GIOVANNI, D'ERCOLE, MICHELE, BETTI, MASSIMO
Format:	Patent
Sprache:	eng ; fre
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:	A method and apparatus are described for controlling the combustion in a gas turbine. The method includes measuring , by means of one or two calorimeters, the temperature, calorific value and relative density of a gaseous fuel in order to determine the Wobbe index, comparing the Wobbe index value measured with a predefined Wobbe index value for the gaseous fuel and regulating the temperature of the gaseous fuel by means of at least one heat exchanger in order to reach the predefined Wobbe index value. The method may also include using a second gaseous fuel, hav-ing a different Wobbe index from the gaseous fuel, or a fuel obtained by mixing the gaseous fuel and the second gaseous fuel, according to arbitrary proportions and vari-able with time.