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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 ...
Additive Manufacturing of Cryogenic Pump Impellers
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Additive manufacturing has been utilized in an increasing number of applications for many different types of services. Cryogenic pump impellers can be manufactured to ASTM F3318 for AlSi10Mg in the HIP + T6 condition through ...
HYDROGEN-COMBUSTION AND COMPRESSION
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Recently, the use of hydrogen-natural gas mixtures as a fuel, but also as a means of storing and transporting hydrogen from surplus electricity as a result of renewable energy production has drawn significant attention. ...
COKING OF GAS TURBINE LUBRICATION OILS AT ELEVATED TEMPERATURES
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Over the last several decades, turbine efficiency has improved significantly, resulting in higher turbine operating temperatures that negatively affect the lubricating oil circulating through the system. Exposure to high ...
IGNITION CHARACTERISTICS OF GAS TURBINE LUBRICATION OILS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Ignition of lubricating oil is a highly undesirable event that is a major safety hazard that could also be incredibly costly. The possibility for lubricant ignition is present in numerous mechanical systems and applications. ...
REALISTIC EXPECTATIONS FROM A UNIQUE PLAN 66A BUSHING DESIGN
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
As crude oil remains the dominant fuel and raw material source for transportation and industry the crude oil pipeline continues to be the preferred crude transportation method across large land masses. Along with this ...
High Frequency Acoustic Excitation in Centrifugal Compressor and Adjacent Piping Vibration
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
In a centrifugal compressor, interactions between impeller blades and stationary parts such as diffuser vanes will generate high frequency pressure pulsations. The frequencies of these pulsations, so called “blade passing ...
ON THE INFLUENCE OF LUBRICANT FEEDHOLE SIZE AND END PLATE SEALS’ CLEARANCE ON THE DYNAMIC PERFORMANCE OF INTEGRAL SQUEEZE FILM DAMPERS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
In rotating machinery, squeeze film dampers (SFDs) reduce rotor synchronous response amplitude motions, provide structural isolation and enhance rotordynamic stability. Compared to conventional squirrel cage supported SFDs, ...