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Early Detection Of Rotating Stall Phenomenon In Centrifugal Compressors By Means Of ASME PTC 10 Type 2 Test
(Texas A&M University. Turbomachinery Laboratories, 2012)
A centrifugal compressor presenting rotating stall can exhibit many problems, as limitation on its operational range, high level of subsynchronous vibrations, reduced efficiency and premature bearing wear. There are many ...
Development Of A High Pressure Rotordynamic Test Rig For Centrifugal Compressors Internal Seals Characterization
(Texas A&M University. Turbomachinery Laboratories, 2011)
The current centrifugal compressor design for the Oil & Gas market is more and more challenging since the cost requirements and the presence of many competitors is pushing towards casing size reduction and rotational speed ...
Turbo-Expander Compressor Active Magnetic Bearing Trips Reduction - A Case Study
(Texas A&M University. Turbomachinery Laboratories, 2011)
Correction Of Chronic Thrust Bearing Failures On A Refrigeration Compressor
(Texas A&M University. Turbomachinery Laboratories, 2011)
A Comparison of Manufacturing Methods, Accuracy, Quality Control and Testing Methods a They Relate to High Head Low Flow Impeller Efficiency and Overall Compressor Performance
(Texas A&M University. Turbomachinery Laboratories, 2012)
This paper presents a detailed analysis and evaluation of impeller efficiency and overall compressor performance as they relate to specific impeller manufacturing methods, manufacturing tolerances, and quality control. The ...
Impact Of Electrical Noise On The Torsional Response Of VFD Compressor Trains
(Texas A&M University. Turbomachinery Laboratories, 2012)
The popularity of VFD motors in compressor trains has increased in recent years. Increased process flexibility is a primary consideration for implementation of VFD systems. However, this comes at a cost of increased ...
Tilting-Pad Bearings: Measured Frequency Characteristics Of Their Rotordynamic Coefficients
(Texas A&M University. Turbomachinery Laboratories, 2011)
This paper reviews a long standing issue related to the stiffness and damping coefficients of tilting-pad (TP) bearings; namely, What is the nature of their frequency dependency? A research project was implemented at the ...
“Beating” Effect Caused By Two Closely Spaced Mechanical Frequencies Observed On Two Shaft, Gas Turbine Drive
(Texas A&M University. Turbomachinery Laboratories, 2011)
Reverse Rotation In Centrifugal Compressors
(Texas A&M University. Turbomachinery Laboratories, 2011)
Reliability Improvement For Reciprocating Compressor Valve In CCR Reformer (Case Study)
(Texas A&M University. Turbomachinery Laboratories, 2011)
Background: After revamp of reformer CCR process where all three compressors are running without stand-by, compressor valve life decreased drastically from 1 year to a few(2~3) months. Troubleshooting: Whole entire factors ...