Gaseous fuel leakage from fuel system manifold to engine

A system for operating an engine coupled to a fuel system having a fuel manifold configured to supply fuel to a combustor of the engine, the system comprising:

• a processor;
• and
• a non-transitory computer-readable medium having stored thereon program instructions executable by the processor for:
• receiving a gaseous fuel flow request indicative of a change in demand for gaseous fuel to the engine;
• applying a fuel loss bias to the gaseous fuel flow request to obtain a biased fuel flow request, the fuel loss bias associated with a change in mass flow rate of the gaseous fuel from the fuel manifold to the combustor in response to the change in demand;
• and
• causing the gaseous fuel to flow into the combustor in accordance with the biased fuel flow request.

A system comprising:

• an engine having a combustor;
• a fuel system coupled to the engine, the fuel system comprising an arrangement of components connected between a gaseous fuel supply and a fuel manifold fluidly connected to the combustor via at least one set of nozzles;
• and
• a controller coupled to the engine and the fuel system, and configured for applying a fuel loss bias to a gaseous fuel flow request to obtain a biased fuel flow request, the fuel loss bias associated with a change in mass flow rate of the gaseous fuel from the fuel manifold to the combustor in response to the change in demand, and causing the gaseous fuel to flow into the combustor in accordance with the biased fuel flow request.