Class / Patent application number | Description | Number of patent applications / Date published |
060736000 | Fuel preheated upstream of injector | 14 |
20080229751 | Cooling system for gas turbine engine having improved core system - A gas turbine engine having a longitudinal centerline axis therethrough, including: a fan section at a forward end of the gas turbine engine including at least a first fan blade row connected to a first drive shaft; a booster compressor positioned downstream of and in at least partial flow communication with the fan section including a plurality of stages, each stage including a stationary compressor blade row and a rotating compressor blade row connected to a drive shaft and interdigitated with the stationary compressor blade row; a core system positioned downstream of the booster compressor, the core system further comprising a combustion system for producing pulses of gas having increased pressure and temperature from a fluid flow provided to an inlet thereof so as to produce a working fluid at an outlet; a low pressure turbine positioned downstream of and in flow communication with the core system, the low pressure turbine being utilized to power the first drive shaft; and, a system for cooling the combustion system, wherein fuel is utilized as a cooling fluid prior to being supplied to the combustion system. The core system may further include an intermediate compressor positioned downstream of and in flow communication with the compressor connected to a second drive shaft; and an intermediate turbine positioned downstream of the combustion system in flow communication with the working fluid. | 09-25-2008 |
20080245073 | Gas turbine engine - A gas turbine engine is provided comprising a compressor, a fuel supply apparatus, a combustor, and a turbine. The fuel supply apparatus comprises a fuel source, a cooling apparatus including a heat exchanger and structure for defining a first path for fuel to travel from the fuel source to the heat exchanger and a second path for fuel to travel away from the heat exchanger. The combustor functions to receive the compressed air from the compressor and the fuel from the heat exchanger, combine the air and fuel to create an air/fuel mixture and ignite the air/fuel mixture to create combustion products. The cooling apparatus further comprises structure coupled to and extending between the heat exchanger and at least one of a plurality vanes in the turbine for circulating a coolant fluid through at least one vane and the heat exchanger. In another embodiment, pipe supply structure extends from a fuel source through an end section of a turbine casing. In a further embodiment, a heat exchanger of a heat recovery steam generator is provided in a turbine casing end section. | 10-09-2008 |
20100050641 | INTEGRATED FUEL GAS CHARACTERIZATION SYSTEM - A gas turbine engine that includes a compressor, a combustion stage, a turbine assembly, a fuel gas feed system for supplying fuel gas to a combustion stage of the gas turbine, an integrated fuel gas characterization system, and a buffer tank is disclosed. The integrated fuel gas characterization system may determine the heating value of the fuel and adjust either the airflow to the compressor or the fuel gas flow to the combustor to maintain a design fuel-to-air ratio. | 03-04-2010 |
20100281870 | SYSTEM AND METHOD FOR HEATING FUEL FOR A GAS TURBINE - In certain embodiments, a system includes a fuel heater. The fuel heater includes a first heat exchanger configured to receive compressed air from a compressor and to transfer heat from the compressed air to feedwater. The fuel heater also includes a second heat exchanger configured to receive heated feedwater from the first heat exchanger and to transfer heat from the heated feedwater to a fuel. | 11-11-2010 |
20100307158 | SYSTEMS RELATING TO TURBINE ENGINE CONTROL AND OPERATION - A combustion turbine engine that includes: a compressor; a combustor that receives fuel from a fuel line; a turbine; a heat exchange portion comprising a portion of the fuel line in heat transfer relationship with a heat source for heating the fuel; a rapid heating value meter disposed to test the heating value of the fuel that is configured to provide heating value test results within approximately 1 minute; a cold leg bypass comprising a fuel line that bypasses the heat exchange portion, the cold leg bypass being connected to the fuel line at an upstream fork and at a fuel mixing junction; and valves for controlling the fuel being directed through the heat exchange portion and the fuel being direct through the cold leg bypass; wherein the length of fuel line between the fuel mixing junction and the combustor is less than 20 meters. | 12-09-2010 |
20110283706 | SYSTEM AND METHODS FOR PRE-HEATING FUEL IN A POWER PLANT - A method for assembling a fuel supply system for use with a power generation system. The method includes coupling a fuel heater to a fuel source for heating a fuel. A first heating assembly is coupled to the fuel heater for heating a first flow of water channeled to the fuel heater. A heat recovery steam generator assembly is coupled to the fuel heater for channeling a second flow of heated water to the fuel heater. A valve assembly is coupled between the first heating assembly, the heat recovery steam generator assembly, and the fuel heater to enable a flow of heated water from the first heating assembly and the heat recovery steam generator assembly to be selectively channeled to the fuel heater. | 11-24-2011 |
20110314822 | Switchable Solar Heating Device For A Gas Turbine - A switchable solar heating device for a gas turbine with a compressor, having a valve for electively bypassing a solar heater which is arranged between a compressor stage and a turbine stage of the gas turbine. The valve is constructed as a 4-way valve with a compressor port that can be connected to the compressor stage, a turbine port that can be connected to the turbine stage, a solar input port that can be connected to an input of the solar heater, and a solar output port that can be connected to an output of the solar heater. | 12-29-2011 |
20120137693 | POWER PLANT - Provided is a power plant including a gas turbine that uses a fuel gas as a fuel; a fuel gas cooler that cools the fuel gas, which is to be pressurized in a fuel gas compressor and re-circulated, using cooling water; and a dust collection device that separates/removes impurities from the fuel gas that is to be guided to the fuel gas compressor; wherein the power plant further includes heating means that heats the fuel gas that is to be guided to the dust collection device using the fuel gas that has been used to generate an anti-thrust force acting on a rotor of the fuel gas compressor. | 06-07-2012 |
20130042621 | METHOD FOR INCREASING THE EFFICIENCY OF A POWER PLANT WHICH IS EQUIPPED WITH A GAS TURBINE, AND POWER PLANT FOR CARRYING OUT THE METHOD - In a power plant which is equipped with a gas turbine, fuel for the gas turbine is preheated by means of solar heat. The preheating is realized through the use of a heat transfer circuit. The use of an additional, second heat transfer circuit between the source for the solar heat and the first heat transfer circuit permits storage of the solar heat. The fuel preheating according to the invention permits in particular an increase in the efficiency of the power plant. | 02-21-2013 |
20140102105 | SYSTEM AND METHOD FOR HEATING COMBUSTOR FUEL - A system for heating combustor fuel includes a turbine exhaust plenum and a heat exchanger downstream from the turbine exhaust plenum. The heat exchanger has an exhaust inlet, an exhaust outlet, a fuel inlet, and a fuel outlet. An exhaust recirculation plenum has a recirculation inlet connection downstream from the exhaust outlet and a recirculation outlet connection upstream from the exhaust inlet. The system further includes structure for controlling a recirculated exhaust flow from the exhaust outlet into the exhaust recirculation plenum. | 04-17-2014 |
20140165572 | FUEL GAS HEATING WITH THERMAL ENERGY STORAGE - Thermal energy storage containing thermal energy extracted from a bottom cycle heat engine is leveraged to heat fuel gas supplied to a gas turbine engine operating in a top cycle heat engine. Further, an extracted portion of a working fluid generated in a steam generation source of the bottom cycle heat engine can be used along with the thermal energy storage to heat fuel gas. | 06-19-2014 |
20160003141 | ASSEMBLY COMPRISING A GAS TURBINE - An assembly includes a gas turbine and a heat exchanger for heating up a gas turbine process fluid by thermal energy. The gas turbine has a compressor, a combustor and a turbine downstream of the combustor, wherein the thermal energy is from the solar receiver. To improve efficiency and reduce power generation fluctuations, the assembly includes a first line to conduct the gas turbine process fluid downstream a compression by the compressor to the heat exchanger, and a second line to conduct the gas turbine process fluid from the heat exchanger to the combustor to generate hot combustion gas from the warmed up gas turbine process fluid burning fuel in the combustor. | 01-07-2016 |
20160003159 | PREHEATING DEVICE FOR GAS TURBINE FUEL, GAS TURBINE PLANT PROVIDED THEREWITH, AND PREHEATING METHOD FOR GAS TURBINE FUEL - This fuel-preheating device is provided with the following: a cooling-steam line that supplies steam, for the purposes of cooling, to a hot part of a gas turbine, namely a combustion liner of a combustor; a superheated-steam line through which superheated steam that is steam having passed through the combustion liner of the combustor flows; and a preheater that receives the superheated steam from the superheated-steam line and preheats fuel to be supplied to the combustor by exchanging heat between the superheated steam and said fuel. | 01-07-2016 |
20160201557 | GAS TURBINE ENGINE THERMAL MANAGEMENT SYSTEM | 07-14-2016 |