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Turbine Bearing Housing Fire Accident Due To hydrogen inflow into nitrogen line of dry gas seal
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Fire incidents occurred in the turbine bearing housing at every start-upsince the original wet type seal in the compressor was replaced with a dry gas seal(DGS). The first investigation focused on leakage of the lube oil ...
An Overview of the Design and Performance Testing of a 275 BAR Integrally Geared Supercritical CO2 Compressor for Power Generation
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
An integrally geared compressor-expander (compander) for supercritical CO2 (sCO2) was developed to convert thermal energy to electricity. With operating pressures of 275 bar, this turbomachine represents the state of the ...
Power Turbine Field And Shop Balance Experience
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
A power turbine (PT) experienced a high 1X vibration issue. Balancing was attempted at two accessible planes on the shaft section. However, the unit could only operate with vibration below the alarm level in steady-state ...
Transforming Maintenance Using Virtual Assembly
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Virtual assembly is challenging historical maintenance paradigms by reducing durations up to 75%, while improving quality and safety. Turbomachinery can be virtually assembled to identify and address assembly issues prior ...
Reciprocating Compressor Motor Vibration During Initial Start-up
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Shortly after start-up of a new 4 throw 3 stage reciprocating compressor, high motor vibration was recorded on a machinery monitoring system. The single bearing motor vibration levels reached 260 microns (10.25 mils) during ...
Annular Clearance Gas Seals In The 21st Century: A REVIEW OF THE EXPERIMENTAL RECORD ON LEAKAGE AND DYNAMIC FORCE COEFFICIENTS, INCLUDING COMPARISONS OF MODEL PREDICTIONS TO TEST DATA
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Turbomachinery seals are engineered to maintain efficiency and power delivery by minimizing leakage. Seals also appreciably affect the system rotordynamic behavior due to their relative position within a turbomachine. The ...
Centrifugal Compressor Configuration, Selection And Arrangement: A User's Perspective
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
The detailed sizing and selection of centrifugal compressors may be somewhat of a mystery to the typical user. Once the suction and discharge process conditions and required flow rates are established, they are submitted ...
Materials And Coatings For Turbomachinery In Hydrogen Applications
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Centrifugal compressors are commonly utilized for hydrogen compression in refineries for critical applications, and a potential “Hydrogen Economy� to lowering the carbon footprint on a worldwide scale will require ...
AN IMPROVED THRUST PREDICTION MODEL FOR HIGH PRESSURE MULTI-STAGE CENTRIFUGAL COMPRESSORS
(2022)
Axial thrust load predictions are an important aspect when it comes to predicting the performance of centrifugal compressors. The accurate prediction of axial thrust forces is necessary to size the appropriate balance ...
An Alternative Option to Provide Seal Gas for Dry Gas Seals Which was Used During the First Start Up of Pipeline Booster Compressors
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
This case study covers the initial start up (“black� start up) of a centrifugal compressor at a pipeline station located in a remote desert environment in Saudi Arabia, focusing on the issue that the suction and discharge ...