METHOD AND SYSTEMS FOR PROVIDING COOLING FOR A TURBINE ASSEMBLY

摘要

A system for providing cooling of a turbine rotor wheel includes a rotor wheel including a plurality of dovetail slots spaced circumferentially about a peripheral surface of the rotor wheel. Each of the dovetail slots includes a pair of opposite upper slot tangs and a pair of opposite lower slot tangs. The system also includes at least one turbine blade. The turbine blade includes an airfoil, a platform, and a dovetail. The dovetail includes a pair of opposite upper dovetail tangs and a pair of opposite lower dovetail tangs. The dovetail further includes at least one inlet aperture extending longitudinally therethrough. The pair of upper dovetail tangs include a first cooling hole extending therethrough and coupled in flow communication with the at least one inlet aperture.

主权项

1. A rotor wheel assembly comprising:
a rotor wheel comprising a plurality of dovetail slots spaced circumferentially about a peripheral surface of said rotor wheel, each said dovetail slot comprising a pair of opposite upper slot tangs and a pair of opposite lower slot tangs; and at least one turbine blade comprising an airfoil, a platform, and a dovetail, said dovetail comprising a pair of opposite upper dovetail tangs and a pair of opposite lower dovetail tangs, said dovetail further comprising at least one inlet aperture extending longitudinally therethrough, said pair of upper dovetail tangs comprising a first cooling hole extending therethrough and coupled in flow communication with said at least one inlet aperture.