General Electric Company

Benjamin Arnette LaGrange

Gary Charles Liotta

Randall Richard Good

James William Vehr

Anthony Aaron Chiurato

Jon Robert DeLong

Alston Ilford Scipio

Sanji Ekanayake

Craig Allen Bielek

Stephen Paul Wassynger

Dale Joel Davis

Matthew Durham Collier

Scott Francis Johnson

Timothy Tah-teh Yang

Tommy Dee Hayes

Jonathan David Crim

Disclosed are methods and systems to determine a power plant machine reliability forecast. In an embodiment, a method may comprise obtaining an environmental factor of a power plant machine based on geospatial data of a first area and location data of a second area, obtaining an operating factor of the power plant machine, and determining a reliability forecast based on the obtained environmental factor and the obtained operating factor.

Method and system for determining power plant machine reliability

Third stage turbine buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z' set forth Table I wherein X and Y values are in inches and the Z&#x2032; values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z&#x2032; values by the height of the airfoil in inches and adding the radius of the airfoil base. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape. The X, Y and Z distances may be scalable as a function of the same constant or number to provide a scaled up or scaled down airfoil section for the bucket. The nominal airfoil given by the X, Y and Z distances lies within an envelope of +/&#x2212;0.0.060 inches in directions normal to the surface of the airfoil.

Airfoil shape for a turbine bucket and turbine incorporating same

A damping system for a turbine bucket. The damping system includes a damper pocket with a variable tangential depth and a damper pin positional within the damper pocket.

Bucket vibration damper system

An enhanced damping system for a turbine bucket. The damping system includes a damper pocket and a damper pin with an offset center of gravity positioned within the damper pocket.

Enhanced bucket vibration system

Growing community of inventors

Greer, SC, United States of America

Benjamin Arnette LaGrange