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Now showing items 11-20 of 37
Improving The Reliability Of A High Speed Refrigeration Compressor.
(Texas A&M University. Turbomachinery Laboratories, 2007)
A high speed (15,200 rpm) refrigeration centrifugal recycle compressor was experiencing severe reliability problems resulting in short run times between major overhauls. Typical run times were one to 12 weeks. The symptoms ...
A Sub-Synchronous Vibration Problem: Trapped Fluid in Compressor Coupling Spacer / Diagnosis and Resolution
(Texas A&M University. Turbomachinery Laboratories, 2007)
The Torsional Torque Fluctuations of a Compressor Train with a Vector Control PWM Inverter
(Texas A&M University. Turbomachinery Laboratories, 2007)
A stable speed & torque control system is essential for large adjustable speed motor driven compressor trains. In order to achieve stable control, advanced control techniques are required. This case study shows the problems ...
Non-Metallic Brush Seal in Heavy Duty GT Units, GE-Made Frame No 7 Model EA
(Texas A&M University. Turbomachinery Laboratories, 2007)
This Paper describes design, fabrication, installation and operational experience with non-metallic brush seals installed in all four GT Units, GE-made, Frame No 7, model EA, presently operating at Watson Cogeneration ...
ASME Lecture Table of Contents for the Proceedings of the 36th Turbomachinery Symposium
(Texas A&M University. Turbomachinery Laboratories, 2007)
Centrifugal Impeller Failure via a Thermite Reaction
(Texas A&M University. Turbomachinery Laboratories, 2007)
A 2500 HP integral gear compressor in an air separation plant experienced an impeller failure in the first stage of compression. The failure was extensive and took the dry air compressor off-line. Plant production was ...
Advances In Gas Turbine Couplings.
(Texas A&M University. Turbomachinery Laboratories, 2007)
Over the last 50 years industrial gas turbines have advanced significantly. Horsepower has increased 200 percent (and even higher) within the same envelope. Improvements in efficiencies and reliability (more operating time ...
Application Of Dynamic Simulation In The Design, Operation, And Troubleshooting Of Compressor Systems.
(Texas A&M University. Turbomachinery Laboratories, 2007)
Dynamic simulation with rigorous mathematical models allows for evaluation of compressor performance under nonsteady-state conditions. It has become a powerful tool in the design of compressor antisurge protection, evaluation ...
Surveying Tilting Pad Journal Bearing And Gas-Labyrinth Seal Coefficients And Their Effect On Rotor Stability.
(Texas A&M University. Turbomachinery Laboratories, 2007)
The evaluation of rotor system stability, which has become an essential part of rotordynamic analyses and rotating machinery design, relies heavily on the bearing and seal dynamic coefficient modeling to obtain an accurate ...
On The Potential Of Metal And Ceramic Based Abradables In Turbine Seal Applications.
(Texas A&M University. Turbomachinery Laboratories, 2007)
Abradable seals are employed in turbomachinery to reduce leakage gaps between stationary and rotating parts to improve efficiency and stall margin. Thermally sprayed abradable seals have been used in the compressor section ...