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Now showing items 21-30 of 60
Successful 2 planes balancing confirm by rotordynamics calculation
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
This historical case is focus on the vibration behavior of a generator. After a short circuit issue on the grid, the machine train trip. At this time the level of vibration of the generator was acceptable and well below ...
Optimizing compressor packing designs by predicting rod temperatures.
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
The pressure packing is a critical component of every reciprocating compressor. High wear leads to increased process gas leakage rates which can result in a compressor shutdown. Excessive leakage can even cause fugitive ...
METHODS TO EFFECTIVELY EVALUATE MODERN JOURNAL BEARING PERFORMANCE AND ACHIEVE HIGH RELIABILITY
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
Centrifugal compressors and steam turbines commonly use hydrodynamic journal bearings. These bearings can be fixed geometry (sleeve) or tilting pad type. Most end users expect bearings to operate trouble free from major ...
Resolving Centrifugal Compressor Aerodynamic-Performance Issues Related to Inlet Flow Distortion
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
A compressor aero-performance issue occurred during in-house Type 2 testing of a centrifugal compressor – the overload limit was close to the expected design capacity. Root cause analyses initially focused on the compressor ...
Excessive Axial Load on Main Oil Line Pump Thrust Bearing, Measurement and Control
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
This case study describes the deployment of an axial load measurement and control solution for centrifugal pumps experiencing high bearing temperatures on the Non-Drive End (NDE). Through the real-time measurement of the ...
Aerodynamic Design of Centrifugal Compressor Components Around Existing Rotor
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
This case study covers the aerodynamic design of a centrifugal compressor that replaced an aging compressor experiencing leakage issues. The replacement compressor was required to reuse the existing rotor, bearings, seals, ...
Video Based Vibration: A tutorial and case study with a live demonstration and data analysis on real life pump data
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
Recent advances in camera technology allows the user to detect subtle motion and amplify that motion to a level visible with the naked eye. Furthermore displacements, phase and frequency of motions can all be determined ...
Introduction to Dry Gas Seals and Systems
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
Dry gas seals are used as low-leakage shaft end seals for many centrifugal compressors and other turbomachines. This short course provides a comprehensive overview of sealing system and dry gas seals in various turbomachinery ...
High Strength Material for Hydrogen Service, an Experimental Investigation
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
As an energy source, hydrogen has been a topic of discussion for some time. To support future energy demands, efficient means ofhydrogen compression will be required. Centrifugal compression may play a larger role in a ...
Balancing three-bearing rotors
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
Multistage cryogenic pump rotors are vertically oriented and supported radially by three bearings. However, while the rotors are oriented vertically and supported in three planes, they are balanced horizontally in two-plane ...