Now showing items 1-20 of 64

    • A CFD Primer: What Do All Those Colors Really Mean? 

      Sorokes, James M.; Hardin, James; Hutchinson, Brad (Texas A&M University. Turbomachinery Laboratories, 2016)
      This tutorial provides a general overview of computational fluid dynamics (CFD). It is not intended for CFD experts but rather for those seeking answers to questions such as: What is the role of CFD in the design / analysis ...
    • Development Of Fuel-Flexible Gas Turbine Combustor 

      Asai, Tomohiro; Miura, Keisuke; Akiyama, Yasuhiro; Karishuku, Mitsuhiro; Yunoki, Keita; Dodo, Satoshi; Horii, Nobuyuki (Texas A&M University. Turbomachinery Laboratories, 2016)
      Growing global energy demands are motivating the gas turbine industry to seek fuel-flexible gas turbines capable of burning a wide variety of fuels as a means of increasing energy supply stability and security. These ...
    • Compressor Loadsharing Control And Surge Detection Techniques 

      Jacobson, Wayne; Staroselsky, Serge; Zaghloul, Medhat; McWhirter, Jeff; Tolmatsky, Michael (Texas A&M University. Turbomachinery Laboratories, 2016)
      Centrifugal compressor trains operating in parallel or series arrangements are complex when it comes to turbomachinery control. Methodologies for controlling compressor trains in these arrangements piping layout considerations ...
    • Torsional Instability Of Cooling Tower Fan During Induction Motor Startup 

      Adachi, Akira; Murphy, Brian (Texas A&M University. Turbomachinery Laboratories, 2016)
      Torsional instability during starting of an induction motor has caused excessive torque oscillation and eventual failure of gearbox pinion teeth of a cooling tower fan train. A torsional instability appeared due to a steep ...
    • Highlights of Draft API 610 12th Edition 

      Jones, Roger L.; Korkowski, Frank J.; Cooper, Jeremy (Texas A&M University. Turbomachinery Laboratories, 2016)
      API 610 Eleventh Edition, Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries, has been updated to the Twelfth Edition. The Eleventh Edition was identical to the ISO 13709 Second Edition; however, API ...
    • Barrier And Buffer Fluid Selection And Considerations For Mechanical Seals 

      Huebner, Michael (Texas A&M University. Turbomachinery Laboratories, 2016)
      The increased use of pressurized and non-pressurized dual mechanical seals has driven more installations to require the use of barrier and buffer fluids. While some end users have viewed the selection of barrier fluids as ...
    • Coupling Guard Temperature And Windage Power Loss: Cfd Analysis And Experiments 

      Thompson, Adam; Zhai, Tianbo; Palazzolo, Alan; Keshmiri, Amir (Texas A&M University. Turbomachinery Laboratories, 2016)
      High temperatures inside coupling guards can cause machinery down time and loss of revenue. As a result, many industries invest significant time and effort trying to reduce heat generation. Windage flanges are a standard ...
    • The Influence of Impeller Wear Ring Geometry on Suction Performance 

      Liebner, Thomas; Cowan, David; Bradshaw, Simon (Texas A&M University. Turbomachinery Laboratories, 2016)
      Wear rings are a necessary feature of an enclosed centrifugal impeller design. The purpose of the wear ring is to limit the leakage of fluid from the high pressure zone at the impeller outlet to the low pressure region at ...
    • Investigation of process gass compressor shaft vibration phenomena 

      Vengurlekar, Ashutosh; Lip, Teo Woon; Little, Nathan; Yoshida, Satoru (Texas A&M University. Turbomachinery Laboratories, 2016)
      This paper presents details of investigation results of issues observed during plant start-up on a centrifugal compressor. Compressor was operated with air/ nitrogen during start-up and high shaft vibration (approx. 75 um) ...
    • Squeeze Film Dampers: A Further Experimental Appraisal Of Their Dynamic Forced Performance 

      San Andrés, Luis; Jeung, Sung-Hwa; Den, Sean; Savela, Gregory (Texas A&M University. Turbomachinery Laboratories, 2016)
      Squeeze Film Dampers (SFDs) are effective means to ameliorate rotor vibration amplitudes and to suppress instabilities in rotor-bearing systems. A SFD is not an off-the-shelf mechanical element but tailored to a particular ...
    • Gas Turbine Packaging Options And Features 

      Brun, Klaus; Thorp, Joseph; Kurz, Rainer; Winkelmann, Bernhard (Texas A&M University. Turbomachinery Laboratories, 2016)
      This tutorial provides an overview of typical packaging options for gas turbines in industrial applications. Applicable standards are discussed. The requirements for different systems, such as air filtration and fuel systems ...
    • The Application Of Ultrasonic Technology To Improve The Reliability Of Magnetic-Drive Centrifugal Pumps 

      Tomlinson, Samuel; Clark, David; Hunter, Andrew (Texas A&M University. Turbomachinery Laboratories, 2016)
      It is widely acknowledged that sealless magnetic drive pumps give total containment of the pumped process liquid, which in an industry where there are ever tightening environmental constraints on plant operation and ...
    • Full Speed String Test On LM6000PF Gas Turbine Driven Refrigeration Compressors 

      Patwardhan, Sameer S.; Weatherwax, Mark; Meher-Homji, Feroze; Cappetti, David; Musardo, Antonio; Iannuzzi, Gianni (Texas A&M University. Turbomachinery Laboratories, 2016)
      Chevron Australia, as part of the Wheatstone Project, constructed a two train liquefied natural gas (LNG) facility and domestic gas plant at the Ashburton North Strategic Industrial Area, 12 kilometers west of Onslow on ...
    • Performance Test Of A Liquid Tolerant Impeller And Validation Of Wet Compression Predictive Model 

      Falomi, Stefano; Scarbolo, Luca; Bertoneri, Matteo; Ferrara, Veronica (Texas A&M University. Turbomachinery Laboratories, 2016)
      Standard centrifugal compressors are designed to process gas with limited liquid content: significant presence of liquid may be responsible for the rapid erosion and corrosion of both static and rotating components that ...
    • Using Finite Element Analysis (Fea) To Estimate Reed Frequency Of Vertical Motors For Pump Applications 

      Chen, Edward; Glover, Robert; Evans, Bryan (Texas A&M University. Turbomachinery Laboratories, 2016)
      Vertical motor/pump systems that run close to the motor reed frequency may experience significantly high vibration levels, which can damage the motor as well as the entire pump system. These damages can result in costly ...
    • Redesign of Centrifugal Compressor Impeller by means of Scalloping 

      Grebinnyk, Kirill; Widders, Rob (Texas A&M University. Turbomachinery Laboratories, 2016)
      Impellers of centrifugal compressors may experience resonance with vane passing frequencies, especially when operated away from the design conditions. Resonance can cause a serious structural damage to impeller. Complete ...
    • Using engineered composite materials in sealless magnetic drive pumps to eliminate eddy currents and improve reliability 

      Gurthrie, Ian; Stutz, Samuel (Texas A&M University. Turbomachinery Laboratories, 2016)
      Background - Pump application: This case study is based on an application supplied into a Polysilicon production facility. The purpose of the application is to pump Trichlorosilane (TCS) liquid into the production process ...
    • New Control Method For Fixed Speed Compressors With Side Stream 

      Rossi, David; Casali, Laurence; Pelella, Marco (Texas A&M University. Turbomachinery Laboratories, 2016)
      Problem statement: Operability issues were experienced on flash gas back-to-back compressors with lower molecular weight side stream, driven by fixed speed electric motor: • Failed attempts of start-up/loading • During ...
    • Centrifugal Compressor Configuration, Selection and Arrangement: A User’s Perspective 

      Sandberg, Mark R. (Texas A&M University. Turbomachinery Laboratories, 2016)
      The detailed sizing and selection of centrifugal compressors may be somewhat of a mystery to the typical user. Once the suction and discharge process conditions and required flow rates are established, they are submitted ...
    • A Review Of Aerodynamically Induced Forces Acting On Centrifugal Compressors, And Resulting Vibration Characteristics Of Rotors 

      Sorokes, James M.; Marshall, D. Fred; Kuzdzal, Mark J. (Texas A&M University. Turbomachinery Laboratories, 2016)
      There are several sources of non-synchronous forced vibration of centrifugal compressor rotors. Many of them are aerodynamic phenomena, created within the gas path of the compressor. Phenomena such as impeller stall, ...