Erosion suppression system and method in an exhaust gas recirculation gas turbine system
AssigneesGeneral Electric Company, ExxonMobil Upstream Research Company
InventorsGabriel Della-Fera, Todd F. Denman, Scott E. Ellis
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Abstract
In an embodiment, a method includes flowing an exhaust gas from a turbine of a gas turbine system to an exhaust gas compressor of the gas turbine system via an exhaust recirculation path; evaluating moist flow parameters of the exhaust gas within an inlet section of the exhaust gas compressor using a controller comprising non-transitory media programmed with instructions and one or more processors configured to execute the instructions; and modulating cooling of the exhaust gas within the exhaust recirculation path, heating of the exhaust gas within the inlet section of the exhaust gas compressor, or both, based on the evaluation.
Claims15
A gas turbine system, comprising:
- an exhaust gas compressor, comprising:
- an inlet section fluidly coupled to a turbine expander via an exhaust gas recirculation path;
- a detection system comprising at least one non-intrusive measurement device coupled to the inlet section, wherein the at least one non-intrusive measurement device is configured to generate a first feedback relating to moisture contained within an exhaust gas flowing through the inlet section, wherein the at least one non-intrusive measurement device comprises a water droplet size and flux measurement system;
- and
- a controller communicatively coupled to the detection system and comprising non-transitory media programmed with one or more sets of instructions, and one or more processing devices configured to execute the one or more sets of instructions such that the controller is configured to:
- evaluate the first feedback for one or more indications of condensation of the moisture within the exhaust gas as the exhaust gas flows through the exhaust gas compressor;
- and
- provide a user-perceivable indication for a first corrective action to be taken if the one or more indications are indicative of moisture condensation outside of a first predetermined condensation range;
- or
- perform a second corrective action if the one or more indications are indicative of moisture condensation outside of a second predetermined condensation range.
A gas turbine system, comprising:
- an exhaust recirculation path extending from a turbine outlet to an exhaust gas compressor;
- an exhaust gas cooling system positioned along the exhaust recirculation path and configured to cool exhaust gas within the exhaust recirculation path;
- a detection system comprising a water droplet size and flux measurement system positioned downstream of the exhaust gas cooling system and upstream of inlet guide vanes of the exhaust gas compressor, wherein the water droplet size and flux measurement system is configured to measure a droplet size and density of water within the exhaust gas, wherein the detection system comprises a non-intrusive device coupled to an inlet section of the exhaust gas compressor;
- and
- a direct contact heating system positioned between the exhaust gas cooling system and the water droplet size and flux measurement system, wherein the direct contact heating system is configured to heat the exhaust gas;
- a controller communicatively coupled to the water droplet size and flux measurement system, the exhaust gas cooling system, and the direct contact heating system, wherein the controller comprises non-transitory media programmed with instructions that are executable by a processor of the controller such that the controller is configured to monitor the droplet size and/or density of water within the exhaust gas, and modulate cooling of the exhaust gas by the exhaust gas cooling system, modulate heating of the exhaust gas by the direct contact heating system, or both, based at least partially on the monitored droplet size and/or density of water within the exhaust gas.
Dependencies are inferred from the claim text.