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Now showing items 1-10 of 14
Dry Screw Compressors In Process Gas Applications Including Maintenance Considerations.
(Texas A&M University. Turbomachinery Laboratories, 1992)
The dry screw compressor, which combines the advantages of positive displacement with rotary motion, is gaining wider international acceptance for process gas applications. The selection of dry screw compressors is dependent ...
Assessing Rotor Stability Using Practical Test Procedures.
(Texas A&M University. Turbomachinery Laboratories, 1992)
Perturbation testing of an industrial centrifugal compressor in an at-speed balancing chamber is discussed in PERTURBATION TESTING FOR ASSESSING ROTOR STABILITY. The instrumentation and data acquisition techniques are ...
A Fundamental Understanding Of Rotordynamics From A Light Rub (Bounce).
(Texas A&M University. Turbomachinery Laboratories, 1992)
Machinery users, designers, and analysts are both alarmed and fascinated by the occasional occurrences of contact between a rotating shaft and a stationary part. "Rubs," a common description for such contact, are typically ...
Design, Installation, And Test Of A Steam Injection System On An Early Frame 3 Gas Turbine In A Combined Cycle Pipeline Compressor Station.
(Texas A&M University. Turbomachinery Laboratories, 1992)
The Frame 3 Gas Turbines have proven to be reliable drivers for pipeline compressor stations over the last 25 years. At Transco's combined cycle compressor station, a steam injection system for power augmentation was ...
Rotor Bearing And Shaft Dynamics Redesign Of A Double-Overhung Turboexpander For Reliability Improvement.
(Texas A&M University. Turbomachinery Laboratories, 1992)
A solution is presented for a lateral rotor and bearing dynamics problem on a high pressure, double-overhung turboexpander with a design operating speed of 57,300 rpm. The rotor has an expander impeller mounted at one end ...
Twenty Years Of Experience With A Modular Design System For Centrifugal Process Compressors.
(Texas A&M University. Turbomachinery Laboratories, 1992)
The design of single shaft horizontally split and barrel type compressors is based on a modular design system, which comprises fixed geometry components, i.e., impellers, diffusers, return vane channels, scrolls, and inlet ...
Lateral Vibration Created By Torsional Coupling Of A Centrifugal Compressor System Driven By A Current Source Drive For A Variable Speed Induction Motor.
(Texas A&M University. Turbomachinery Laboratories, 1992)
A serious radial gear vibration was determined to be caused by significant torsional excitation from a squirrel cage induction motor that was controlled by a variable frequency current source inverter drive. Field test ...
Specifying Steam And Rating Conditions For Special Purpose Steam Turbines.
(Texas A&M University. Turbomachinery Laboratories, 1992)
The data required by turbine vendors to properly develop a design for a special purpose steam turbine are discussed in detail. Topics covered include discussion of continuous steam conditions, turbine power ratings and ...
Gear Coupling Misalignment Induced Forces And Their Effects On Machinery Vibration.
(Texas A&M University. Turbomachinery Laboratories, 1992)
Gear couplings can produce large static forces and moments that can affect the vibrations of turbomachinery, even with nearly perfect alignment. Research, testing and case histories have verified this theory and are reported. ...
Large Converter-Fed Adjustable Speed AC Drives For Turbomachines.
(Texas A&M University. Turbomachinery Laboratories, 1992)
Converter-fed adjustable speed electric motors are now finding increasing use for driving turbomachinery in the power range from 1.0 to 20 (50) MW. The most important properties of these drives are explained, with the main ...