Abstract: A system includes a gas turbine. The gas turbine includes a first compressor configured to provide a first portion of a discharge air to a combustor. The gas turbine also includes the combustor configured to combust a mixture of the first portion of the discharge air and fuel to generate an exhaust gas and to provide the exhaust gas to a turbine. The gas turbine also includes an exhaust outlet coupled to the turbine and configured to enable the exhaust gas to exit the gas turbine. The system also includes a nitrogen purification system coupled to the gas turbine. The nitrogen purification system includes a membrane nitrogen generator configured to receive a second portion of the discharge air from the compressor or a portion of the exhaust gas from the exhaust outlet, wherein the membrane nitrogen generator is configured to generate nitrogen from the second portion of the discharge air or the portion of the exhaust gas.

Abstract: A system includes a custody transfer system configured to transfer a gas fuel from a gas supply to a plurality of gas turbines. The custody transfer system includes a first plurality of flow meters arranged in parallel with each other, wherein each of the first plurality of flow meters is configured to obtain a first measurement of a portion of a flow rate of the gas fuel flowing through the custody transfer system, and a second plurality of flow meters in series with the first plurality of flow meters, wherein each of the second plurality of flow meters is configured to obtain a second measurement of the flow rate of the gas fuel flowing through the custody transfer system, and wherein each of the first and second plurality of flow meters is configured to be blocked or unblocked from receiving the gas fuel based on a number of the plurality of gas turbines in operation.

Abstract: A system includes a gas turbine. The gas turbine includes a first compressor configured to provide a first portion of a discharge air to a combustor. The gas turbine also includes the combustor configured to combust a mixture of the first portion of the discharge air and fuel to generate an exhaust gas and to provide the exhaust gas to a turbine. The gas turbine also includes an exhaust outlet coupled to the turbine and configured to enable the exhaust gas to exit the gas turbine. The system also includes a nitrogen purification system coupled to the gas turbine. The nitrogen purification system includes a membrane nitrogen generator configured to receive a second portion of the discharge air from the compressor or a portion of the exhaust gas from the exhaust outlet, wherein the membrane nitrogen generator is configured to generate nitrogen from the second portion of the discharge air or the portion of the exhaust gas.

Abstract: An embodiment of the present invention takes the form of a system that uses exhaust from the combustion turbine engine to heat the fuel gas consumed by a combustion turbine engine. The benefits of the present invention include reducing the need to use a parasitic load to heat the fuel gas.

Abstract: A system includes a custody transfer system configured to transfer a gas fuel from a gas supply to a plurality of gas turbines. The custody transfer system includes a first plurality of flow meters arranged in parallel with each other, wherein each of the first plurality of flow meters is configured to obtain a first measurement of a portion of a flow rate of the gas fuel flowing through the custody transfer system, and a second plurality of flow meters in series with the first plurality of flow meters, wherein each of the second plurality of flow meters is configured to obtain a second measurement of the flow rate of the gas fuel flowing through the custody transfer system, and wherein each of the first and second plurality of flow meters is configured to be blocked or unblocked from receiving the gas fuel based on a number of the plurality of gas turbines in operation.

Abstract: A system is provided and includes first and second water supplies at first and second relatively high and low temperatures, respectively, a heat exchanger, coupled to the water supplies, through which fuel and relative amounts of the water supplies at the first and second temperatures flow for fuel heating and a controller, operably interposed between the water supplies and the heat exchanger, to select and/or modulate the relative amounts of the water supplies permitted to flow through the heat exchanger to heat the fuel to a temperature based on a heating requirement to meet a modified wobbe index (MWI) rating.

Abstract: A system includes a custody transfer system configured to transfer a gas fuel from a gas supply to a gas turbine. The custody transfer system includes a plurality of small flow meters running in parallel with each other, each of the small flow meters configured to obtain a measurement of a portion of a flow rate of the gas fuel flowing through the custody transfer system. Further, the custody transfer system includes a large flow meter in series with the plurality of small flow meters, configured to obtain a measurement of a flow rate of the gas fuel flowing from the plurality of small flow meters. Additionally, the custody transfer system includes communications circuitry coupled to each of the small flow meters and the large flow meter, configured to provide metering metrics to a flow computer.

Abstract: An embodiment of the present invention takes the form of a system that uses exhaust from the combustion turbine engine to heat the fuel gas consumed by a combustion turbine engine. The benefits of the present invention include reducing the need to use a parasitic load to heat the fuel gas.

Abstract: A system is provided and includes first and second water supplies at first and second relatively high and low temperatures, respectively, a heat exchanger, coupled to the water supplies, through which fuel and relative amounts of the water supplies at the first and second temperatures flow for fuel heating and a controller, operably interposed between the water supplies and the heat exchanger, to select and/or modulate the relative amounts of the water supplies permitted to flow through the heat exchanger to heat the fuel to a temperature based on a heating requirement to meet a modified wobbe index (MWI) rating.