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Now showing items 131-140 of 188
High Frequency Fatigue Failure In Silencer/Pulsation Dampers For Oil Free Screw Compressors.
(Texas A&M University. Turbomachinery Laboratories, 1999)
Oil-free screw (OFS) compressors are capable of producing
high-pressure pulsations in the discharge gas stream, over a
frequency range of 200 to 3000 Hz. The fundamental pressure
pulsation is due to the opening cycle ...
Tilting Pad Journal Bearing Pivot Design For High Load Applications.
(Texas A&M University. Turbomachinery Laboratories, 1995)
Reducing pivot stress, pivot wear and preventing pivot failure are major design challenges encountered by tilting pad bearing designers in the extremely high load regime where the bearing unit load may often range up to ...
The Design And Application Of A Squeeze Film Damper Bearing To A Flexible Steam Turbine Rotor.
(Texas A&M University. Turbomachinery Laboratories, 1995)
A critical multistage steam turbine in a large chemical plant experienced high vibration levels and frequent repairs. Numerous failures occurred while passing through the rotor's first critical speed including heavy rubs. ...
Use Of Metal Bellows Noncontacting Seal And Guidelines For Steam Applications.
(Texas A&M University. Turbomachinery Laboratories, 1999)
Steam turbines are used throughout the process industries and
provide a reliable means of driving pumps, compressors; and other
rotating equipment. Carbon rings are currently the most common
way
.
of seali g these ...
Experience With High Speed Induction Motors For Direct Driving Of Compressors.
(Texas A&M University. Turbomachinery Laboratories, 1998)
This paper presents the high speed, high power induction motor as a viable alternative for direct driving of compressors. A comparison is made between the existing different mechanical and electrical solutions, and the ...
Installation Tools for Hydraulically Fitted Coupling Hubs - Precautions and Design Requirements
(Texas A&M University. Turbomachinery Laboratories, 1997)
The tools used to install hydraulically fitted hubs need to be as carefully designed and manufactured as the couplings themselves. The authors describe an installation of coupling hubs on upgraded machines where tools that ...
Cost Effective Re-Engineering Of A Propylene Compressor String.
(Texas A&M University. Turbomachinery Laboratories, 1997)
The discussed rerate method will provide users of turbomachinery with a new, cost/leadtime saving approach to plant upgrades. Although rerates of existing turbomachinery are common, this approach is unique in that the ...
An Assessment Of The Forces Acting Upon A Centrifugal Impeller Using Full Load, Full Pressure Hydrocarbon Testing.
(Texas A&M University. Turbomachinery Laboratories, 1997)
Although turbocompressors have been designed, built, and used in increasingly stringent conditions for more than 80 years, the turbomachinery industry, like all comparable industries, can only design and manufacture its ...
Understanding And Preventing Steam Turbine Overspeeds.
(Texas A&M University. Turbomachinery Laboratories, 1997)
Destructive overspeeding of steam turbines due to poor component design, inadequate maintenance, and improper operating practices are all too common. The total cost of a turbine runaway can run into the millions of dollars ...
Stress Evaluation In High Speed, Rotating Machinery With The Lcr Ultrasonic Technique.
(Texas A&M University. Turbomachinery Laboratories, 1997)
The LcR ultrasonic technique is ideally suited for stress
measurement, since it is a bulk longitudinal wave that propagates
just underneath the surface of the item being inspected.
Additionally, it is most sensitive to ...