Patent ID: 8355819
Filing Date: 2013-01-15
Classification: F02C

Abstract:
1. A method performed by a controller for delivering fuel-oxidizer mixture to a gas turbine for ignition, wherein the fuel is a composition of one or more fuel components, the method comprising: calculating an ignitability of the mixture based on one or more fuel parameters related to molecular weight of the fuel, one or more fuel flow parameters, and one or more oxidizer flow parameters; and adjusting the fuel and oxidizer in mixture such that the ignitability of the mixture after the adjustment is within a reference ignitability range, wherein the step of calculating the ignitability of the mixture and the step of adjusting the fuel and oxidizer mixture are performed before igniting the mixture, wherein the step of calculating the ignitability of the mixture is performed without directly measuring a Wobbe index and calorific value of the fuel, and without directly measuring a composition of the fuel, wherein the step of calculating the ignitability of the mixture comprises: wherein the ignitability indicators of the fuel include parameters related to a flammability, heat capacity, and/or reactivity of the fuel, and wherein the lean limit of ignitability is a minimum ignition energy required to ignite the mixture.