General Electric Company

Niraj Kumar Mishra

Xiuzhang James Zhang

Craig Allen Bielek

Sachin Kumar Rai

Murugesan Seerangan

The present application provides a turbine nozzle including an airfoil shape. The airfoil shape may have a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I. The Cartesian coordinate values of X, Y and Z are non-dimensional values from 0% to 100% convertible to dimensional distances in inches by multiplying the Cartesian coordinate values of X, Y and Z by a height of the airfoil in inches. The X and Y values, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The airfoil profile sections at Z distances may be joined smoothly with one another to form a complete airfoil shape.

Turbine nozzle airfoil profile

A turbine bucket having an airfoil is disclosed. The airfoil may include a pressure side and a suction side extending between a leading edge and a trailing edge. In addition, the airfoil may include a tip. The tip may include a tip floor and a tip wall extending outwardly from the tip floor. The tip wall may include an inner surface defining an inner perimeter of the tip wall. Moreover, a plurality of notches may be defined by the inner surface around at least a portion of the inner perimeter.

Turbine bucket with notched squealer tip

According to various embodiments, a system includes a gasification fuel injector. The gasification fuel injector includes a tip portion, an annular coolant chamber disposed in the tip portion, and a first structural support extending through the annular coolant chamber. The first structural support divides the annular coolant chamber into a first passage and a second passage.

Fuel injector having differential tip cooling system and method

Biomass gasification systems including a reactor configured to gasify a dried biomass fuel in the presence of air to generate producer gas are provided. The biomass gasification systems also may include a heat exchanger adapted to transfer heat from the producer gas to a biomass feedstock to produce the dried biomass fuel and cooled producer gas.

Heat recovery systems for biomass gasification systems

Embodiments of the present disclosure include a gas turbine shroud assembly. The shroud assembly may include a shroud structure that defines a first cooling chamber and a second cooling chamber. The shroud assembly may also include a first impingement plate disposed within the first cooling chamber and a second impingement plate disposed within the second cooling chamber. Further, the shroud assembly may include one or more cooling channels formed within the shroud structure. The cooling channels may be configured to connect the first cooling chamber with the second cooling chamber. The shroud assembly may also include a flow of cooling air in communication with the first cooling chamber. In this manner, the flow of cooling air may flow from the first cooling chamber to the second cooling chamber by way of the one or more cooling channels.

Gas turbine shroud assemblies

According to various embodiments, a system includes a gasification fuel injector. The gasification fuel injector includes a fuel conduit configured to inject the fuel, the first oxygen conduit configured to inject oxygen, a second oxygen conduit configured to inject oxygen, and a cooling gas conduit configured to flow a cooling gas. The cooling gas is flame resistant.

System for increasing the life of fuel injectors

A turbine bucket having an airfoil is disclosed. The airfoil may include a pressure side wall and a suction side wall extending between a leading edge and a trailing edge. In addition, the airfoil may include a base and a tip disposed opposite the base. The tip may include a tip floor and pressure and suction side tip walls extending outwardly from the tip floor. Moreover, the tip may include an intermediate tip wall extending outwardly from the tip floor between the pressure and suction side tip walls. The intermediate tip wall may define a height that is less than a height of the pressure and/or suction side tip walls.

Growing community of inventors

Bengaluru, India

Niraj Kumar Mishra