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Now showing items 3981-3990 of 4423
FLUID FILM BEARINGS FUNDAMENTALS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
Bearings constitute one of the most critical components in
turbo and rotating machinery today. Their influence on the
rotordynamic performance, life, and reliability of the machine
cannot be ignored. Many of the problems ...
NEW APPROACH TO TORSIONAL VIBRATION MONITORING
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
This paper presents a summary of the authors' experience
gained from implementation of model-based monitoring
systems for LNG string vibration. The development of a novel
train torsional vibration monitoring approach ...
Fifteen Years of Field Experience in LNG Expander Technology
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
From the earliest days of gas liquefaction, the
thermodynamic process advantage of employing cryogenic
liquefied gas expanders in place of throttling valves was very
well recognized. The available technology was unable ...
RECIPROCATING COMPRESSOR CONDITION MONITORING
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
Technology for reciprocating compressor condition monitoring has been around since the 1950’s, however until the last 20 years or so it seemed that only the pipeline companies spent much effort on this activity. Technology ...
Large Vibrations on a Centrifugal Compressor Caused by High Windage Heating on a Flexible Coupling–Root Cause Analysis and Solutions
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
Background: 2 parallel trains consisting of a Low Pressure (LPC) and High Pressure (HPC) compressors were supplied for an offshore reinjection application near the coast of Angola. During the commissioning on site large ...
Seal Condition Monitoring Principles
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
As many of you have experienced throughout your career, Mechanical Seals are the number 1 failed component within pumps. So, how do we fix that? In this tutorial, we will discuss why seals are the # 1 failed component, but ...
Fast and Ultimate Vibration Field Solution: From Problem Detection to Field Performance Validation
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
Summary: The case. Initial analysis. Root cause analysis. Solution implementation. Results. Conclusions.
“Beating” Effect Caused by Two Closely Spaced Mechanical Frequencies Observed on Two-Shaft, Gas Turbine Drive
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
LNG TURBOMACHINERY
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
The International Liquefied Natural Gas (LNG) trade is
expanding rapidly. Projects are being proposed worldwide to
meet the industry forecasted growth rate of 12% by the end of
the decade. LNG train designs in the coming ...
VSDS Motor Inverter Design Concept for Compressor Trains avoiding Interharmonics in Operating Speed Range
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
During operation of compressor trains by a variable speed
drive system (VSDS), integer and non-integer harmonic
currents are generated in the inverter. Via the electrical system
of the inverter and the motor, an excitation ...