Patent application number | Description | Published |
20090090111 | Supercritical steam combined cycle and method - A supercritical steam combined cycle system including a gas turbine; a supercritical steam turbine system including a supercritical section, a high pressure section, an intermediate pressure section and at least one low pressure section; and a supercritical steam heat recovery steam generator (HRSG) for receiving exhaust gas from the gas turbine for heating fluid from the steam turbine system. The HRSG includes a supercritical evaporator arranged to supply steam to a superheater between the supercritical evaporator and the inlet of the HRSG and a reheater receiving cold reheat steam from and returning reheated steam to the steam turbine system. The reheater includes a first section disposed downstream of and a second section disposed upstream of the supercritical evaporator along the exhaust gas flow path. Cool reheat steam from the steam turbine system is received by the first reheater section and steam leaving the first reheater section is supplied to the second reheater section upstream of the supercritical evaporator. | 04-09-2009 |
20110079017 | Methods and Systems Involving Carbon Sequestration and Engines - A system for power generation comprises an engine operative to output an exhaust gas, a carbon capture means operative to remove carbon dioxide (CO2) from the exhaust gas and output the CO2, and a compressor operative to receive the CO2 and output compressed CO2 that cools a component of the engine. | 04-07-2011 |
20110088404 | REHEAT GAS TURBINE - An external-reheat gas turbine and method are disclosed. A gas turbine system can include a compressor, an expander, a combustor disposed between the compressor and the expander, a boiler disposed between the compressor and the expander, a conduit including chargeable air and in thermal communication with the boiler and an external free heat source coupled to the boiler. | 04-21-2011 |
20120317973 | Asymmetrical Combined Cycle Power Plant - A combined cycle power plant includes a first engine, a second engine, a first heat recovery steam generator, a second heat recovery steam generator, and a steam turbine. The second engine is relatively more productive but less efficient than the first engine. The first engine generates a first exhaust gas, and the second engine generates a second exhaust gas. The first heat recovery steam generator transfers excess energy from the first exhaust gas to a first flow of water, creating a first flow of steam. The second heat recovery steam generator transfers excess energy from the second exhaust gas to a second flow of water, creating a second flow of steam. The second heat recovery steam generator further transfers excess energy from the second exhaust gas to the first flow of steam and the second flow of steam, creating a flow of superheated steam. The steam turbine receives the flow of superheated steam from the second heat recovery steam generator. | 12-20-2012 |
20130000272 | SYSTEM FOR FUEL GAS MOISTURIZATION AND HEATING - Embodiments of the present invention may provide to a gas turbine a fuel gas saturated with water heated by a fuel moisturizer, which receives heat form a flash tank. A heat source for the flash tank may originate at a heat recovery steam generator. The increased mass flow associated with the saturated fuel gas may result in increased power output from the associated power plant. The fuel gas saturation is followed by superheating the fuel, preferably with bottom cycle heat sources, resulting in a larger thermal efficiency gain. | 01-03-2013 |
20140060047 | Steam Cycle System with Thermoelectric Generator - The present application provides a steam cycle system. The steam cycle system may include a source of steam, a steam turbine, a condenser, a steam turbine bypass system such that steam from the source of steam may bypass the steam turbine and be routed to the condenser, and one or more thermoelectric generators positioned about the steam turbine bypass system. | 03-06-2014 |
20140144124 | Gas Turbine Anti-Icing System - Embodiments of the present disclosure are directed towards a system that includes a recirculation system. The recirculation system includes a compressor discharge air line extending from a compressor to an air intake. The compressor discharge air line is configured to flow a compressor discharge air flow, and the air intake is configured to supply an air flow to the compressor. An ejector is disposed along the compressor discharge air line between the compressor and the air intake. The ejector is configured to receive and mix the compressor discharge air flow and a turbine exhaust flow to form a first mixture. | 05-29-2014 |
Patent application number | Description | Published |
20120055157 | FUEL HEATING SYSTEM - A system may include an insulated water tank configured to store a first heated water from a first plant component during operation of a plant, and a fuel heater comprising a heat exchanger, wherein the heat exchanger is configured to transfer heat from the first heated water to a fuel for a gas turbine engine during startup of the plant. | 03-08-2012 |
20140203557 | System and Method for Extending Minimum Turn Down Load of Combined Cycle Power Plant - A system including a gas turbine system and an electrolysis unit configured to produce a hydrogen gas for reducing a minimum emissions compliance load of the gas turbine system. | 07-24-2014 |
20140260284 | System and Method for Loading a Combined Cycle Power Plant - A system including a gas turbine system configured to transition between a first load state and a second load state, wherein the gas turbine system comprises an airflow control module configured to adjust an airflow through the gas turbine system between a minimum airflow condition and a maximum airflow condition, and a controller configured to control the gas turbine system to operate with a load path between a first load path corresponding to the minimum airflow condition and a second load path corresponding to the maximum airflow condition, wherein the controller is configured to control the gas turbine system to transition between the first load state and the second load state using the load path between the first and second load paths. | 09-18-2014 |
20150052906 | Duct Fired Combined Cycle System - The present application provides a combined cycle system. The combined cycle system may include a heat recovery steam generator with a first low pressure section and a second low pressure section, a steam turbine with a low pressure steam section in communication with the second low pressure section of the heat recovery steam generator, and a duct burner positioned upstream of the heat recovery steam generator. | 02-26-2015 |