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Now showing items 151-160 of 264
EVALUATION OF VARIOUS METHODS FOR MANUFACTURING ONE PIECE, SMALL TIP OPENING IMPELLERS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Closed centrifugal compressor impellers have been manufactured using several methods through the years. Due to limitations of the materials and machining processes, most of these impellers have been manufactured in what ...
SILO EXHAUST FAN – STRUCTUAL VIBRATION ODS AND MA
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
This case study outlines how structural vibration was resolved using two different technologies and highlighting secondary issues that can arise due to continued vibration because of structural resonance. Continued high ...
CENTRIFUGAL COMPRESSOR IN HIGH FLOW AND LOW HEAD APPLICATIONS: AN IMPELLER DESIGN CONCEPT FOR COPING WITH THE INCREASING VOLUME FLOW IN POLYOLEFIN PROCESSES
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
The paper discusses the development of a novel impeller design concept that addresses changing requirements for radial centrifugal compressors applied in the polymer/downstream petrochemical industry. The impeller design ...
Vibration Diagnostic of Steam Turbine Intermittent Rubbing
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
A special purpose steam turbine has started to experience intermittent radial vibration spikes. The turbine is used to drive a Hydrogen Recycle Gas Compressor in Aromatics unit. No abnormality observed on the compressor ...
TURNING GEAR MOTOR FAILURES, CONFIRMED BY MODEL BASED VOLTAGE & CURRENT METHOD
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
This technical brief aims to showcase relevant information related to Model-Based Voltage and Current (MBVI) method. The paper discusses several fatal failures on the Turning Gear Motor (TGM) over the short time period of ...
Steam Turbine High Axial Displacement due to Governor Actuator Filter Clog
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
The governor actuator for a steam turbine was observed to be hunting and failed to maintain stable operating speed. The steam turbine is used to drive a centrifugal compressor for H2 service in a recycle loop. The extent ...
Vibration issue on Compressor in a Nitric Acid Plant (Part 2)
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
“Part 1 of the case history for this return to service follows on from the 2021 ATPS “ presentation which covered off the Expander related issue (labyrinth seal rubs) preventing the NAP 2 plant from successfully re ...
TURBOEXPANDERS IN PETROCHEMICAL INDUSTRY ADVANCE TECHNOLOGY FOR GREEN HYDROGEN LIQUEFACTION
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Global demands for petrochemicals and green hydrogen usage are on the rise and are expected to continue for at least the next decade. Green hydrogen liquefiers are needed for the worldwide reduction of greenhouse gases and ...
Catastrophic Mechanical Seal Failure Leading to Loss of Primary Containment (LOPC)
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Usage of mechanical seal is widely used in rotating equipment especially pump It prevents fluid or product of the pump from leaking to atmosphere Consequence of seal leaking will be more critical if the product itself is ...
CENTRIFUGAL COMPRESSOR PROLONGED LOW FLOW OPERATION CONSIDERATION FOR OPERATORS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Centrifugal compressor is the heart of upstream and downstream oil and gas operation as its ability to move large volume of fluid to its end destination. Centrifugal compressors are designed at certain range of operation. ...