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Vibration Reduction Or Large Steam Turbine Generator Through Bearing Analysis/Modification.
(Texas A&M University. Turbomachinery Laboratories, 1997)
Large utility steam turbines have experienced very high vibration levels on their generator exciter bearings. Units where the exciter rotor is supported by a single bearing are particularly susceptible. This synchronous ...
Discovering, The Hard Way, How A High Performance Coupling Influenced The Critical Speeds And Bearing Loading Of An Overhung Radial Compressor - A Case History.
(Texas A&M University. Turbomachinery Laboratories, 1997)
A case is presented where significant unacceptable vibration levels were encountered during mechanical testing of a single stage overhung radial compressor used in a mechanical vapor recompression process. The contract ...
High Speed Oil-Free Turbomachinery String.
(Texas A&M University. Turbomachinery Laboratories, 1998)
This paper is a discussion of the design, manufacture, test, and
field operation of a totally oil-free string of rotating equipment. The
turbomachinery string consists of a multistage centrifugal
compressor driven by a ...
Vibration And Eccentricity Measurements Combined With Rotordynamic Analyses On A Six Bearing Turbine Generator.
(Texas A&M University. Turbomachinery Laboratories, 1998)
This lecture discusses how the vibration characteristics and
eccentricity measurements were combined with rotordynamic
analyses to help improve the reliability of a turbine generator unit.
It also explains certain ...
Mechanical Upgrades To Improve Centrifugal Compressor Operation And Reliability.
(Texas A&M University. Turbomachinery Laboratories, 2003)
In today’s business environment, centrifugal compressor reliability is more critical than ever. Unscheduled equipment downtime has a negative impact on plant operations, oftentimes resulting in a temporary halt of production. ...
Design Modifications And Active Balancing On An Integrally Forged Steam Turbine Rotor To Solve Serious Reliability Problems.
(Texas A&M University. Turbomachinery Laboratories, 1998)
This paper describes the design modifications and active
balancing on a 19,000 hp integrally forged steam turbine rotor to
improve its dynamic characteristics and reliability. The turbine was
purchased as a replacement ...
Thermoplastic Labyrinth Seals For Centrifugal Compressors.
(Texas A&M University. Turbomachinery Laboratories, 2004)
For over 15 years now, the efficiency and reliability of centrifugal compressors have been enhanced by the application of thermoplastic materials to the eye, shaft, and balance piston labyrinth seals. Traditionally these ...
On Fuel Suitability For Gas Turbines.
(Texas A&M University. Turbomachinery Laboratories, 2004)
Industrial gas turbines allow operation with a wide variety of gaseous and liquid fuels. To determine the suitability for operation with a gas fuel system, various physical parameters of the proposed fuel need to be ...
Development Of Abradable And Rub Tolerant Seal Materials For Application In Centrifugal Compressor And Steam Turbines.
(Texas A&M University. Turbomachinery Laboratories, 2004)
The use of abradable and rub tolerant polymer seals to reduce leakage between rotating and stationary members in centrifugal compressors and steam turbines has increased over the years. Abradable materials such as mica-filled ...
Life Cycle Cost Assessment Of Turbomachinery For Offshore Applications.
(Texas A&M University. Turbomachinery Laboratories, 2004)
This paper describes a comprehensive life cycle cost (LCC) analysis procedure, regarding turbomachinery systems for offshore oil and gas production platforms. The LCC analysis includes the development of a cost breakdown ...