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Now showing items 41-50 of 188
Unexpected Rotordynamic Instability In A "Proven" FCC Wet Gas Compressor.
(Texas A&M University. Turbomachinery Laboratories, 1999)
The cause and effects of a large subsynchronous vibration (3.5
mils at 3490 cpm) in an FCC wet gas compressor are examined.
The compressor is driven at 7850 rpm by a 6000 hp electric motor,
through a speed-increasing ...
Sources And Remedies Of High-Frequency Piping Vibration And Noise.
(Texas A&M University. Turbomachinery Laboratories, 1999)
In large diameter piping, high-frequency energy can produce excessive noise and vibration, and failures of thermowells, instrumentation, and attached small-bore piping. In severe cases, the pipe itself can fracture. Perhaps ...
Solutions To Field Problems Of A Gas Turbine-Axial Flow Chemical Process Compressor Train Based On Computer Simulation Of The Process.
(Texas A&M University. Turbomachinery Laboratories, 1999)
Operating and maintaining key rotating equipment in a petrochemical service and tight economic constraints requires an indepth evaluation in performance deterioration of key gas turbines and axial flow compressor parameters. ...
Basics Of Operation And Application Of Oil Flooded Rotary Screw Compressors.
(Texas A&M University. Turbomachinery Laboratories, 1999)
Rotary screw compressors are widely used today in chemical and petrochemical refining, gas processing, and in the oil patch. Common applications include refrigeration using hydrocarbons, hydrofluorocarbons (HFCs), and ...
Methodology Of Open Bladed Impeller Resonance Indentification.
(Texas A&M University. Turbomachinery Laboratories, 1999)
Open bladed impellers (impellers without shrouds) with high rotational speeds are a vital component of centrifugal compressors. The impeller reliability is directly related to the compressors’ successful operation and ...
The Use Of Computational Fluid Dynamics And Scale Model Component Testing For A Large FCC Prototype Air Compressor.
(Texas A&M University. Turbomachinery Laboratories, 1999)
The purpose of this paper is to describe the use of computational fluid dynamics (CFD) and scale model testing techniques that were used accurately predict and confirm the performance of a large centrifugal air compressor. ...
Advances In Erosion Prediction Of Axial Flow Expanders.
(Texas A&M University. Turbomachinery Laboratories, 1999)
Hot gas expander flow path erosion costs the refining industry millions of dollars per shutdown in labor, material, and lost production to replace eroded components. With erosion being the life limiting factor, there is ...
Analysis Of Hot Section Failures On Gas Turbines In Process Plant Service.
(Texas A&M University. Turbomachinery Laboratories, 1999)
In-service failures of process plant gas turbines can have major economic consequences in terms of repairs and downtime. Following such an incident, steps need to be taken to avoid a recurrence. This is best accomplished ...
Pad Temperature In High Speed, Lightly Loaded Tilting Pad Journal Bearings.
(Texas A&M University. Turbomachinery Laboratories, 1995)
The principal results from an extensive experimental investigation of the steady state characteristics of tilting pad journal bearings are presented. The conditions examined were primarily concerned with operation at high ...
Experience With Empirical Criteria For Rotating Stall In Radial Vaneless Diffusers.
(Texas A&M University. Turbomachinery Laboratories, 1995)
A seven stage, centrifugal compressor, for gas lift service on a North Sea oil production platform, exhibited subsynchronous shaft vibrations during full load, high density, factory tests. Pressure transducers in each stage ...