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Turbine Instability Solution-Honeycomb Seals.
(Texas A&M University. Turbomachinery Laboratories, 1996)
A 40,000 hp steam turbine-generator in a utility service experienced a history of high vibration alarms and trips from an online vibration monitoring system. The excursions of high vibration restricted the operational load ...
The Design, Application, And Operation Of High Efficiency Turboexpanders In Process Plants.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Turboexpander thermal efficiency is an important parameter in the process design of hydrogen purification plants. When a process requires low flow and high head, expander thermal efficiency can only be improved by increasing ...
Profiled Leading Edge Groove Tilting Pad Journal Bearing For Light Load Operation.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Optimization of a leading edge groove tilting pad journal bearing for application in a small, high speed, multistage steam turbine is described. Rotordynamics constraints to meet a design objective maximum operating speed ...
Squeeze Film Damper Bearing Experimental Vs Analytical Results For Various Damper Configurations.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Higher speeds, longer shafts, and increased power has made squeeze film damper (SFD) bearing performance increasingly more important to control both synchronous and subsynchronous fibration in rotating machinery. SFD bearing ...
Practical Design Against Torsional Vibration.
(Texas A&M University. Turbomachinery Laboratories, 1996)
One of the foremost concerns facing turbomachinery users today is that of torsional vibration. In contrast to lateral vibration problems, torsional failures are especially heinous since the first symptom of a problem is ...
Design And Application Of Squeeze Film Dampers In Rotating Machinery.
(Texas A&M University. Turbomachinery Laboratories, 1996)
There are common misconceptions and occasional misapplications associated with squeeze film dampers. The authors have worked for more than 25 years researching, experimenting, and applying this subject matter to all types ...
Selection, Design, And Field Testing Of A 10,500 HP Variable Speed Induction Motor Compressor Drive.
(Texas A&M University. Turbomachinery Laboratories, 1996)
The cooperative effort is described of equipment manufacturers,
the process plant designer and the ultimate user to specify and
design a compressor system that was driven by a 10,500 horsepower
induction motor that was ...
Planning, Preparation, And Implementation Of Turbomachinery Turnarounds.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Anyone involved in overhauling equipment during a scheduled
turnaround knows the importance of having the right people and
the right tools available in the right places at the right time.
Obviously, the orchestration ...
Turbine Overhaul Frequency Time Or Performance Based?.
(Texas A&M University. Turbomachinery Laboratories, 1996)
How long should a turbine run before it is disassembled for inspection and overhaul? This question is increasingly important in today's environment of reduced maintenance and turnaround costs. Many aspects of the degradation ...
Options For Low Speed And Operating Speed Balancing Of Rotating Equipment.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Most turbomachinery users refer to bearing vibration as one of
their major indicators of a successful repair. Frequently heard are
such comments as "we could not even tell the machine was
running." The single most ...