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Transient Unbalance of a Turbo-Compressor Rotor due to Thermal-Gradient Induced Bow from a Seal Gas Heater
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Boiler Feed Water Pumps Performance Loss
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Index:
RGX2 Steam Condensate System
Problem Summary
Troubleshooting History
Unit 92-A261A –Failure
Performance Deterioration
RCFA-Unit 92-P261A
Operational Risk Mitigation
Recommendations Results
Lessons Learned
Fr7AE Gas Turbines Dry Low-NOx Combustion System Operating Challenges in O&G Plants
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Summary: After a planned Shutdown and transfer valve replacement, Propane unit -GT Fr7AE DLN1- started; Unit failed to transfer to pre-mix steady state Mode (PMSS) and Trip. 05 Days of online troubleshooting using Fishbone ...
Hydraulic Upgrade of Hot Water Circulation Pumps in a District Heating System
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Contents: • Introduction
– Particulars
– Objective
• First Design
– Design Details
– Hydraulic Performance
– Onsite Vane Pass Vibration
• Second Design
– Design Details
– Hydraulic Performance
• Concluding Remarks
Centrifugal Compressor Root Cause Analysis and Case Study (Pulsation and Vibration Issues)
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Agenda: A) Excitation forces on centrifugal compressors
B) Root cause analysis approach
C) Case study:
• Pulsations, Blade Passing Frequency, Vibration
• Pipe shell mode & acoustic resonance
• Lessons learned
Separation Seal Upgrade to overcome Repetitive Failures
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Objectives: •Trouble shooting of Separation seal failures.
•Reference for DGS design selection at Project stage.
•Share experience with audience for improved DGS performance (in certain applications).
Mysterious Trippings of NGL Turbo Expanders on Qatargas Mega LNG Train
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Content: •Problem Statement
•Installation Reference
•Purpose of NGL expanders
•Construction of NGL expanders
•Problem Description
•Findings & Analysis
•Problem Resolution
•Challenges Faced
•Q & A
Fluctuation of Seal Gas Supply Differential Pressure of Dry Gas Seals
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Outline: •Problem statement
•Compressor service overview
•Description of sealing system
•Problem description
•Troubleshooting
•Findings
•Remedial Actions
•Result
•Q & A
Root Cause Investigation of Sub-Synchronous Vibration in a Multi-stage Centrifugal Compressor
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Outline: Introduction. Findings. Root Cause Analysis. Modification. Validation of modification. Site confirmation test. Conclusion. Lesson learnt.
Scotford Manufacturing Twin-Screw Compressors in Styrene Vent Gas Service
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Overview: •System Arrangement
•Problem
•What We Found?
•Solutions
•Lessons Learned