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MODELING OF PRESSURE DYNAMICS DURING SURGE AND ESD
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
Centrifugal compressors operability at low flow is normally limited by the onset of surge that occurs when operating near maximum achievable pressure rise. Surge is characterized by large amplitude and periodic pressure ...
IMPACT OF PIPING IMPEDANCE AND ACOUSTIC CHARACTERISTICS ON CENTRIFUGAL COMPRESSOR SURGE AND OPERATING RANGE
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
The performance of a centrifugal compressor is usually defined by its head versus flow map, limited by the surge and stall regions. This map is critical to assess the operating range of a compressor for both steady state ...
A PROBABILISTIC APPROACH FOR COMPRESSOR SIZING AND PLANT DESIGN
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
Equipment sizing decisions in the Oil and Gas Industry often
have to be made based on incomplete data. Often, the exact
process conditions are based on numerous assumptions about
well performance, market conditions, ...
STALL INDUCED AERODYNAMIC FORCING AND ROTOR VIBRATIONS IN A MULTISTAGE CENTRIFUGAL COMPRESSOR
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
The Oil & Gas industry is looking with increased interest
at solutions for improving operating flexibility of centrifugal
compressors. The stable operation of a compressor stage or
machine is generally limited at the ...
EFFECTS OF SUPPORT STRUCTURE DYNAMICS ON CENTRIFUGAL COMPRESSOR ROTOR RESPONSE
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
Accurate modeling of complicated dynamic phenomena characterizing rotating machineries represents a critical aspect in the rotor dynamic field. A correct prediction of rotor behavior is fundamental to identify safe operating ...
INFLUENCE OF IMPELLER SUCTION SPECIFIC SPEED ON VIBRATION PERFORMANCE
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
The most commonly used hard limitation for pump suction specific speed is 11,000 (US units). This hard limit grew out of the recommendations from a 1982 reliability study by J.L. Hallam (Hallam 1982). Concomitant testing ...
REMAINING LIFE ASSESSMENT AND PERFORMANCE CHARACTERIZATION OF CENTRIFUGAL COMPRESSORS IN LNG TRAINS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
RasGas LNG Trains-1 and 2, comprising of three
refrigeration centrifugal compressors each, were commissioned
in 1999 and 2000, respectively. Three compressors have
achieved 15 years of trouble free operation through ...
Gearbox Super-synchronous Lateral Vibration
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
CENTRIFUGAL COMPRESSION MACHINERY FOR WET NATURAL GAS APPLICATIONS: PRELIMINARY PERFORMANCE MEASUREMENTS AND A SCHEME TO RECOVER LOST PERFORMANCE
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
Wet gas compression during upstream production is a major concern for the oil and gas industry, due mainly to the presence of liquid hydrocarbons, as high as 13% by mass fraction in the compressed gas, affecting the system ...
PROCESS CONTROL OPTIMIZATION FOR CENTRIFUGAL COMPRESSORS ON ACTIVE MAGNETIC BEARINGS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
During the testing activities of a subsea prototype compression station in Norway, which included full load operation of an integrated vertical motocompressor levitated by active magnetic bearings (AMBs), relevant efforts ...