Abstract: An integrated circulating water cooling system includes at least one load; an air cooling sub-system; a wet surface cooling sub-system; at least one temperature sensor; a control; and a coolant circulation sub-system for fluidly circulating coolant from the at least one load to the air cooling sub-system to the wet surface cooling sub-system and back to the at least one load. The control selectively operates the wet surface cooling sub-system and the air cooling sub-system based on at least one of temperature sensed in the water circulation sub-system; or sensed ambient temperature.

Abstract: A system includes a plurality of interconnected mixing assemblies configured to mix a first fuel and water to generate a first mixture, and mix a second fuel and the water to generate a second mixture. The first and second fuel mixtures are configured to combust in a plurality of combustors of a gas turbine. The interconnected mixing assemblies include first and second fuel passages, a water passage, first and second mixers, first and second fuel valves, and first and second water valves disposed in an integrated housing. The first fuel valve has a first fuel flow coefficient between approximately 1.0 to 1.5, the second fuel valve has a second fuel flow coefficient between approximately 3.0 to 5.0, the first water valve has a first water flow coefficient between approximately 0.4 to 0.55, and the second water valve has a second water flow coefficient between approximately 3.5 to 5.0.

Abstract: A fuel supply system includes a first fuel supply line coupled in flow communication with a first fuel nozzle and configured to channel a first fuel flow to the first nozzle. A second fuel supply line coupled in flow communication with a second fuel nozzle and configured to channel a second fuel flow to the second nozzle. A water supply line coupled in flow communication with a water injection nozzle and configured to channel a water flow to the water injection nozzle. An atomizing fluid supply circuit coupled in flow communication with the first and second fuel supply lines. The atomizing fluid supply circuit configured to channel an atomizing fluid flow to an atomizing nozzle and into atomizing contact with the water flow. The atomizing fluid includes a portion of at least one of the first fuel flow and the second fuel flow.

Abstract: A fuel supply system includes a first fuel supply line coupled in flow communication with a first fuel nozzle and configured to channel a first fuel flow to the first nozzle. A second fuel supply line coupled in flow communication with a second fuel nozzle and configured to channel a second fuel flow to the second nozzle. A water supply line coupled in flow communication with a water injection nozzle and configured to channel a water flow to the water injection nozzle. An atomizing fluid supply circuit coupled in flow communication with the first and second fuel supply lines. The atomizing fluid supply circuit configured to channel an atomizing fluid flow to an atomizing nozzle and into atomizing contact with the water flow. The atomizing fluid includes a portion of at least one of the first fuel flow and the second fuel flow.

Abstract: A gas turbomachine includes a compressor portion, a turbine portion operatively connected to the compressor portion, and a combustor assembly fluidically connected to the turbine portion. The combustor assembly includes at least one nozzle including at least one fuel gas injector portion and at least one water injector portion. A fuel system is fluidically connected to the at least one nozzle. The fuel system includes at least one fuel gas manifold, a water injector purge manifold and a water injector manifold. The at least one fuel gas manifold is selectively fluidically connectable to the water injector portion of the nozzle through the water injector purge manifold.

Abstract: A system includes a plurality of interconnected mixing assemblies configured to mix a first fuel and water to generate a first mixture, and mix a second fuel and the water to generate a second mixture. The first and second fuel mixtures are configured to combust in a plurality of combustors of a gas turbine. The interconnected mixing assemblies include first and second fuel passages, a water passage, first and second mixers, first and second fuel valves, and first and second water valves disposed in an integrated housing. The first fuel valve has a first fuel flow coefficient between approximately 1.0 to 1.5, the second fuel valve has a second fuel flow coefficient between approximately 3.0 to 5.0, the first water valve has a first water flow coefficient between approximately 0.4 to 0.55, and the second water valve has a second water flow coefficient between approximately 3.5 to 5.0.

Abstract: A system includes a plurality of interconnected mixing assemblies configured to mix a first fuel and water to generate a first mixture, and mix a second fuel and the water to generate a second mixture. The first and second fuel mixtures are configured to combust in a plurality of combustors of a gas turbine. The interconnected mixing assemblies include first and second fuel passages, a water passage, first and second mixers, first and second fuel valves, and first and second water valves disposed in an integrated housing. The first fuel valve has a first fuel flow coefficient between approximately 1.0 to 1.5, the second fuel valve has a second fuel flow coefficient between approximately 3.0 to 5.0, the first water valve has a first water flow coefficient between approximately 0.4 to 0.55, and the second water valve has a second water flow coefficient between approximately 3.5 to 5.0.

Abstract: A system includes a plurality of interconnected mixing assemblies configured to mix a first fuel and water to generate a first mixture, and mix a second fuel and the water to generate a second mixture. The first and second fuel mixtures are configured to combust in a plurality of combustors of a gas turbine. The interconnected mixing assemblies include first and second fuel passages, a water passage, first and second mixers, first and second fuel valves, and first and second water valves disposed in an integrated housing. The first fuel valve has a first fuel flow coefficient between approximately 1.0 to 1.5, the second fuel valve has a second fuel flow coefficient between approximately 3.0 to 5.0, the first water valve has a first water flow coefficient between approximately 0.4 to 0.55, and the second water valve has a second water flow coefficient between approximately 3.5 to 5.0.

Abstract: A system includes a turbine fuel controller configured to control a first supply of a first fuel to a turbine engine, a second supply of a second fuel to the turbine engine, and a transition between the first fuel and the second fuel. The turbine fuel controller includes a fuel integrity control logic configured to control a volume of the first fuel in a first fuel line to maintain a first fuel integrity while the turbine engine is operating on the second fuel rather than the first fuel.

Abstract: A gas turbine comprising a liquid fuel supply system configured to provide a liquid fuel to a combustion system of the gas turbine; and an additive injection system in fluid communication with the liquid fuel supply system, wherein the additive injection system is configured to mix an additive blend with the liquid fuel to form a liquid fuel-additive mixture configured to inhibit coke formation in the liquid fuel supply system.