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CS17: Torsional vibration problem with recirculation gas blower due to variable frequency drive
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
The centrifugal blower equipped with variable-frequency-drive (VFD) motor services in petrochemicalplant The unit was experienced many times of coupling failures after replacement new VFD,metallurgical study indicated ...
TB14: A Practical Data-Driven Analysis Case Studies for Gas Turbine Operators
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
There is abundance of machinery performance data available nowadays due to recent development ofsensors and computational powerUsually those data left to complex/ advance tools (special software) and technique (AI, ...
CS30: Steam Turbine Oil Seal Rub
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
The purpose of this case study is to describe a problem with random, intermittent rotor vibration excursions in a large steam turbine These types of problems can be very difficult to diagnose, especially when the vibration ...
T05: Methods to Effectively Evaluate Modern Journal Bearing Performance and Achieve High Reliability
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
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 ...
T10: Strategies to Prevent Sudden Catastrophic Compressor Failures during Transient Operating Conditions
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Many compressor failures occur during transient operating conditions These failures can be prevented or minimized by having agood machinery condition monitoring program, a good machinery protection system and good maintenance ...
An End-User's Guide to Centrifugal Pump Rotordynamics
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
This tutorial outlines the basics of pump rotordynamics in a form that is intended to be Machinery End User friendly. Key concepts will be defined in understandable terms, and analysis and testing options will be presented ...
CS04: Mitigation of perennial seizure of boiler feed water pumps during commissioning of refinery unit
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Two mission critical electric motor driven BFW (Boiler Feed Water) pumps installed in remote site, facedcontinuous failures of rotor-stator seizures during commissioning and start up of Sulfur recovery units -Pumps had to ...
L06: Development of Perforated Wear Component Design for Centrifugal Pumps
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
This paper will explore the development of a new annular sealwear component design for use in centrifugal pumps Thedesign uses a pattern of holes (or perforations) machinedthrough a composite material wear component The ...
T01: Instrumentation & Control Machinery Robustness Improvements against Spurious Trips
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Experiencing a spurious trip of a turbomachinery train due to an unreliable or faulty instrument or control system can be a very costlyand frustrating experience Nevertheless, a commonly overlooked area within turbomachinery ...
High Temperature Sealing Advancements Utilizing Non-Contacting Gas Seal Technology
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Non-contacting dual pressurized gas lubricated seals for use in pumps have been in service since the early 1990’s. The application of these seal designs has expanded over time into very high temperature applications up to ...