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Now showing items 271-280 of 384
Improving Pump Reliability In Light Hydrocarbon And Condensate Service With Metal Filled Graphite Wear Parts
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
A number of single stage overhung and multistage horizontal pumps with a history of dry running seizure have been modified by replacing the metal stationary wear parts with metal filled graphite. After modification, the ...
Applying Variable Speed Drives With Static Frequency Converters To Turbomachinery.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Today, the variable speed drive with AC motor and static frequency converter is an outstanding solution to control the speed of turbomachines in the power range up to 100 MW and more. A wide selection of variable speed ...
Dynamic Data Analysis Of Compressor Rotating Stall.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Techniques for rotating stall verification and analysis of detrimental effects are described. Majority of dynamic pressure data presented herein are from centrifugal compressors, including one unit that required field ...
Synchronous Motor Lateral Vibration Dynamics - Diagnosis, Resolution, And Field Implementation.
(Texas A&M University. Turbomachinery Laboratories, 1998)
A large, double ended drive synchronous motor experienced
severe, limiting lateral vibration during commissioning of a major
plant expansion. The motor driving a centrifugal compressor
providing process air is decoupled ...
Advanced Dry Gas Seal By The Dynamic Ion Beam Mixing Technique.
(Texas A&M University. Turbomachinery Laboratories, 1998)
Ductile materials have been used for dry gas seal mating rings to
replace conventional sintered materials that have experienced
occasional brittle fracture. The ductile materials require a coating
to make them suitable ...
Development Of A Sulfidation - Corrosion Resistant Nickel-Base Superalloy For FCC Power Recovery Turbine Rotors.
(Texas A&M University. Turbomachinery Laboratories, 1998)
A nickel-base superalloy for FCC power recovery turbine rotors
was developed, which shows excellent sulfidation-corrosion
resistance, high temperature strengths, and hot workability.
To investigate the influences of the ...
Expander Field Remanent Life Analysis And Assessment.
(Texas A&M University. Turbomachinery Laboratories, 1996)
The operating temperatures of hot gas expanders can cause degradation in the material capabilities of both the rotating and stationary components. For this reason, many of the components of the expanders are life limited. ...
Subtracting Residual Unbalance For Improved Test Stand Vibration Correlation.
(Texas A&M University. Turbomachinery Laboratories, 1997)
The importance of correlating rotordynamic analytical results to actual test data has become extremely important in recent years. Many user specifications require the verification of vendor generated analytical results in ...
High Speed Electric Drive Applications - An Overview.
(Texas A&M University. Turbomachinery Laboratories, 1997)
Worldwide, current technology has opened a wide range of new applications for electric motors, many of which have traditionally employed mechanical (turbine) drivers. While the use of electric motors for these high speed ...
Steam Turbine Risk Assessment - A Tool To Assist In Optimizing Inspection And Overhauls Of Industrial Steam Turbines.
(Texas A&M University. Turbomachinery Laboratories, 1997)
There are currently no-or at best, very limited-industry guidelines or requirements on which to quantify the risk associated with turbine inspection intervals. Insurance industry data indicate that steam turbines are a ...