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DIAGNOSIS OF SCREW PUMP FLOW INSTABILITY FROM CASING VIBRATION – A HOLISTIC MACHINERY DIAGNOSTIC APPROACH.
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
This paper discusses the diagnosis, further analysis and resolution of abnormally high vibration and noise detected on Lube Oil (LO) screw pumps A & B supplying a Turbo Expander Compressor (TEC). During the initial ...
Installation of a Stall Ring to Mitigate Boiler Feed Water Pump NPSH3 Requirements at Low Flow
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
An ubiquitous multistage boiler feed water pump for a SMR Hydrogen Plant in a refinery was specified to meet feed water requirements at plant design hydrogen capacity and at a turndown rate. During testing, it was discovered ...
Effects Of Seal Configuration On Seal Performance In Contaminated Applications
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Vibration Field Problem Resolved with Analytical Diagnostic Approach and Innovative Impeller Design
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Several pumps of same design exhibited field vibrations above API limits, dominated by Vane Passage Frequency (VPF). Root cause analysis included both experimental and theoretical paths.Experimental investigation , with ...
A Novel Approach to Installation of New Crude Bottoms Pumps
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Metallurgy upgrades for high TAN crudes and existing NPSH problems required the installation of two (2) new Atmospheric Towers and two (2) new Vacuum Tower Bottoms Pumps. • The new pumps are 450 HP and 1800 rpm versus ...
Fast and Ultimate Vibration Field Solution: From Problem Detection to Field Performance Validation
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Predictive Merit of Computational Fluid Dynamics in Determining Marginal NPSH of Hydrocarbon Centrifugal Pump
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
At inlet, sufficient pressure and NPSH margin is crucial for centrifugal pumpoperation. In cold and light hydrocarbon services; such as Liquefied Natural Gas,vapor pressure variations that is dependent on the temperature ...
Light Hydrocarbon Shipping Pumps Challenges With Repetitive Mechanical Seal Failure
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
NGL shipping pumps have experienced high number of mechanical seal failures during the first five years of operation. There are five pumps where each pump is equipped with two mechanical seals. In some instances, the ...
Interaction Between Rotodynamic Pump Behaviour And Wear Surface Coating Technology: A MULTISTAGE PUMP CASE ANALYSIS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Improvement of Pump/Plant Performance by Sound Evaluation of Both Process Fluid Viscosity Change and Pump Internal Leakage
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
In the modern pump industry, processed fluids are characterized by a wide spectrum of viscosity values. An unpredicted variation of actual process fluid properties, including viscosity, may lead to unexpected pump performance ...