Search
Now showing items 271-280 of 875
Effectiveness of Windage Features on High Speed Couplings
(Texas A&M University. Turbomachinery Laboratories, 2012)
Following the changes to API 671, there is a requirement to reduce temperature around guarded coupling designs. Existing features used in high performance (HP) couplings involve various methods of shrouding and covering ...
Pulsation, Vibration, And Noise Issues With Wet and Dry Screw Compressors
(Texas A&M University. Turbomachinery Laboratories, 2012)
Although wet (oil injected) and dry (oil free) screw compressors are widely used in many applications, limited information is available regarding the pulsation, vibration, and noise problems associated with these types of ...
Fixed Speed Compressors Operation In Offshore Production Platforms
(Texas A&M University. Turbomachinery Laboratories, 2012)
This paper discusses the use of centrifugal compressors with fixed speed in offshore production units using as reference the experience of the Petrobras’ Rio de Janeiro Operational Unit. The operational and maintenance ...
Torsional Natural Frequencies: Measurement Vs. Prediction
(Texas A&M University. Turbomachinery Laboratories, 2012)
Excessive torsional vibration can cause damage or failure to rotating equipment trains thereby resulting in costly shutdowns. A comprehensive torsional vibration analysis is the typical method of designing a torsional ...
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 ...
Preventing Undetected Train Torsional Oscillations
(Texas A&M University. Turbomachinery Laboratories, 2010)
In the past few years the authors have encountered numerous problems and coupling failures related to unexpected torque fluctuations on applications with reciprocating compressors and on VFD, synchronous motor, and gas ...
Tutorial On Cryogenic Turboexpanders
(Texas A&M University. Turbomachinery Laboratories, 2010)
Cryogenic turboexpanders are used in many applications, including ethylene plants, refineries, gas processing plants, and air separation facilities. They frequently produce the coldest level of refrigeration available in ...
Dramatic Reduction Of Gas Turbine Fouling With Hepa Composite Membrane Air Intake Filters
(Texas A&M University. Turbomachinery Laboratories, 2010)
Gas turbines are protected by air inlet filters that remove particulate contaminants to prevent blade fouling and erosion. The most common filters used today are medium grade filters, which are insufficient to capture ...
High Motor Vibration On A Screw Compressor Linked To Natural Frequency Excitation
(Texas A&M University. Turbomachinery Laboratories, 2010)
Investigation And Elimination Of Aerodynamically Induced Torsional Vibrations On An Integrally-Geared Centrifugal Compressor
(Texas A&M University. Turbomachinery Laboratories, 2010)