Patent ID: 11946422
Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A method of operating a combustion system for a gas turbine, the combustor system comprises:
a main fuel supply,
a pilot fuel supply,
a combustion chamber,
the method comprises the steps
supplying a first fuel flow through the main fuel supply and the pilot fuel supply,
monitoring a composition of the first fuel,
monitoring combustion instability,
reducing the first fuel flow through the pilot fuel supply to zero when the first fuel composition has
a) a hydrogen content ≥5% by volume and/or b) a high-hydrocarbon (HC) content ≥5% by volume; and further
the combustion instability <a predetermined value.