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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 ...
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 ...
Operation Of Centrifugal Compressors In Choke Conditions
(Texas A&M University. Turbomachinery Laboratories, 2011)
Centrifugal compressors are at times required to operate in or near the choke region. Various limits of the degree of allowable operation in choke have been established. Based on test data and numerical data, the behavior ...
Full Load Testing Of A 12.5 MW Vertical High Speed Subsea Motorcompressor
(Texas A&M University. Turbomachinery Laboratories, 2011)
In late 2006 Authors’ company was awarded a contract for the motorcompressor for the Ormen Lange Subsea Compression Pilot. This Pilot represents the first subsea motorcompressor unit ever built in a fully marinized version ...
New Approach To Torsional Vibration Monitoring
(Texas A&M University. Turbomachinery Laboratories, 2011)
This paper presents a summary of the authors' experience gained from implementation of model-based monitoring systems for LNG string vibration. The development of a novel train torsional vibration monitoring approach ...
RCFA For Recurring Impeller Failures In A 4.7 Mtpa LNG Train Propane Compressor
(Texas A&M University. Turbomachinery Laboratories, 2011)
A Root Cause Failure Analysis (RCFA) for repeated impeller blade failures in a five stage centrifugal propane compressor is described. The initial failure occurred in June 2007 with a large crack found in one blade on the ...
Modeling And Prediction Of Sidestream Inlet Pressure For Multistage Centrifugal Compressors
(Texas A&M University. Turbomachinery Laboratories, 2011)
It is common for some compressors in certain applications to have one or more incoming sidestreams that introduce flow other than at the main inlet to mix with the core flow. In most cases, the pressure levels at these ...
Long Term Operating Experience With Corrosion Control In Industrial Axial Flor Compressors
(Texas A&M University. Turbomachinery Laboratories, 2011)
One of the primary causes of flow path failures in industrial axial flow compressors has been attributed to or is related to corrosion damage. Over the years, a number of corrosion mitigations have been utilized by various ...
Demonstration Of The Rotordynamic Effects Of Centrifugal Liquid Separation And Gas Compression In An Oil-Free Integrated Motor-Compressor
(Texas A&M University. Turbomachinery Laboratories, 2011)
The application of oil-free-integrated motor-compressors has become increasingly popular in recent years. One of the significant features of this class of machinery is compactness, providing space-savings compared to ...
Mechanical Performance Of A Two Stage Centrifugal Compressor Under Wet Gas Conditions
(Texas A&M University. Turbomachinery Laboratories, 2011)
As subsea compression becomes a vital technology to the successful production of gas reserves in the North Sea, several technology issues will come to the forefront of the oil and gas industry. One of these important ...