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Now showing items 111-120 of 264
Performance of additive manufactured hydrodynamic tilting pad bearings with internal pad cooling
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
The demand for higher power densities in gear-type compressors is pushing the loading of its already highly loaded pinions to even higher levels. The typically applied tilting-pad bearings are exposed to high circumferential ...
SUB-SYNCHRONOUS TORSIONAL INTERACTION (SSTI) CASE STUDY: GENERAL APPROACH APPLIED TO A REAL LNG PLANT
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
Scope of this Case Study is to apply a general approach used for Sub-Synchronous Torsional Interaction (SSTI) studies to a real Liquefied Natural Gas (LNG) plant, where severe SSTI events have been observed during commissioning ...
Vertical Pump Resonance, Finite Element Modeling, and Purchase Specifications
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
When natural frequencies are well separated from machine generated vibration/forcing frequencies there is little amplification, but when not well separated significant vibration amplification can occur due to resonance. ...
Analyzing and Resolving an ID Fan Failure Due to Torsional Vibration
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
In order to better control speed of the electric motor-driven ID Fan, the existing fluid coupling was replaced with avariable speed drive, but this led to two failures of the motor shaft and coupling. The drivetrain was ...
Carbon Ring Seal Failure in a High Pressure CO₂ Compressor
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
During commissioning of a new 8-stage CO₂ pipeline compressor, higher than expected seal vent flows were detected from the carbon ring seals in the high pressure (HP) stages. The problem was severe enough that the machine ...
A PRACTICAL APPROACH FOR MEASURING ENERGY AND CARBON PERFORMANCE OF TURBOMACHINERY IN OFFSHORE APPLICATIONS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
The purpose of this work is to present the first results of a practical approach developed for measuring the performance on energy and carbon of turbomachinery installed at offshore oil production plants, based on the ...
CARBON FOOTPRINT REDUCTION IN ACID GAS RECOVERY SYSTEM THROUGH DESIGN, DEVELOPMENT AND DEPLOYMENT OF A 2000HP HYDRAULIC TURBOCHARGER
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Four sets of hydraulic turbocharger based energy recovery systems (2000 hp each) were successfully designed, manufactured, tested and commissioned for Acid Gas Recovery plants (AGR) in Saudi Arabia. These five units can ...
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 is considered two piece or three piece methods. Despite the vast amount of experience with traditional construction methods, there is a drive to move towards one piece construction, where there are no joints and, in theory, lower probability of preexisting defects. Typically, the impellers that are being offered as one piece are those with relatively large openings where 5-axis milling machines can be utilized. This paper investigates several alternative methods to manufacturing small tip opening impellers as a single piece. The methods discussed include Electrical Discharge Machining (EDM), investment casting, Hot Isostatic Pressed Powder Metal (HIP’d PM), and Direct Metal Laser Sintering (DMLS).
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
sCO2Flex (Horizon 2020 grant agreement #764690) is a project that involves a consortium of several EU public and private partners. Within this program, the consortium addresses the necessities to upgrade existing fossil ...
LEAKAGE AND DYNAMIC FORCE COEFFICIENTS FOR A STEPPED LABYRINTH SEAL AND A STEPPED POCKET DAMPER SEAL SUPPLIED WITH WET GAS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Industrial centrifugal compressors use annular gap seals, typically labyrinth type, to restrict process gas leakage from high-pressure regions to low-pressure regions. Currently liquid tolerant compressors enable efficient ...
ADAPTATION OF REMOTE AND AUTONOMOUS OPERATION (RAO) FOR ROTATING EQUIPMENT OF PETRONAS FACILITIES
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
The Oil and Gas industry is increasingly facing with more complex and hazardous operations. This is resultant from integration with a more complex feed and product properties as well as requirement for operation in harsher ...