FIELD: turbines or turbomachines.
SUBSTANCE: group of inventions relates in particular to a gas turbine fuel gas preparation system for starting a gas turbine and to a method of its operation, enabling acceleration of gas turbine start-up by reducing consumption of fuel gas scattered into environment. Fuel gas preparation system comprises at least one heater for heating fuel gas and a recirculator, such as a compressor, for supplying fuel gas heated by the heater, back to the heater through the fuel gas manifold. Logic control unit is functionally connected to the gas turbine shutoff element and to the recirculation shutoff valve to control the gas turbine fuel gas supply, when fuel gas reaches temperature acceptable for gas turbine start-up. Also disclosed is a machine-readable data medium containing instructions determined by the method of starting the gas turbine.
EFFECT: disclosed is a gas turbine fuel gas preparation system and a gas turbine start-up method.
12 cl, 5 dwg
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