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Now showing items 161-170 of 188
Design Considerations For Thrust Bearing Applications.
(Texas A&M University. Turbomachinery Laboratories, 1996)
The hydrodynamic thrust bearing load capacity-speed envelope is divided into three major regions by speed. Each region has its own set of limiting physical phenomenon that must be included in the analysis and presents a ...
Reliability Focused Maintenance System - A Case Study.
(Texas A&M University. Turbomachinery Laboratories, 1997)
A case study of how a large organization is utilizing the combined strengths of commercial off-the-shelf software packages to implement a corporate-wide reliability focused maintenance initiative is presented. The integrated ...
Romex - An Expert System Testbed For Turbomachinery Diagnostics.
(Texas A&M University. Turbomachinery Laboratories, 1990)
A rule based system developed for vibration oriented diagnosis of turbomachinery for fault identification and for predictive maintenance is described. The system is implemented in a PC based PROLOG environment, with the ...
Piping Vibration Analysis.
(Texas A&M University. Turbomachinery Laboratories, 1990)
Excessive piping vibrations are a major cause of machinery downtime, leaks, fatigue failures, high noise, fires, and explosions in refineries and petrochemical plants. Excessive vibration levels usually occur when a ...
Energy Recovery In A Gas Distribution Station By Combination Of Expanders With Planetary Gear And Optimum Single Valve Control.
(Texas A&M University. Turbomachinery Laboratories, 1990)
The prevailing use of expansion gases in distribution stations can be economically replaced by the application of turbo expanders. The advantage of turbine impulse wheels is that they have high efficiencies, even at very ...
Online Ultrasonic Monitoring Of Bearing Wear.
(Texas A&M University. Turbomachinery Laboratories, 1990)
Unpredicted bearing failures continue to plague industry with forced outages. As a result of these outages, many industries have attempted prevention by unnecessary inspections and premature bearing replacement. This work ...
Repair Severely Damaged Rotors By Submerged Arc Welding.
(Texas A&M University. Turbomachinery Laboratories, 1991)
Severely damaged rotors often can be rebuilt even when damage has occurred to the shaft/rotor forging. Such shop repair returns what would have been a scrapped or degraded rotor to original equipment standards. The repair ...
Surge Detection In An Industrial Axial Flow Compressor.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Compressor surge can be a disruptive and potentially destructive phenomena in turbocompressors. A surge detection scheme utilized in shop and field testing of a 29,600 hp (22 MW) industrial axial compressor is described. ...
Full Power, Full Pressure, Closed-Loop Test Of A Natural Gas Turboexpander.
(Texas A&M University. Turbomachinery Laboratories, 1996)
An operator in the Danish part of the North Sea has identified as
critical the ontime startup of a bridge module that is being
developed as a "brown field" extension to a platform complex in
the Danish sector of the ...
Vibrations In Reciprocating Machinery And Piping Systems.
(Texas A&M University. Turbomachinery Laboratories, 1994)
A wide variety of vibration and failure problems occur in reciprocating machinery and piping systems. Excessive piping vibration problems usually occur when a mechanical natural frequency of the piping system or compressor ...