Browsing by Author "Turbomachinery Symposium (28th : 1999)"

Now showing items 1-20 of 20

    • Analysis Of Hot Section Failures On Gas Turbines In Process Plant Service. 
      Hunter, Ian; Daleo, Joe; Wilson, Jim; Ellison, Keith (Texas A&M University. Turbomachinery Laboratories, 1999)
      In-service failures of process plant gas turbines can have major economic consequences in terms of repairs and downtime. Following such an incident, steps need to be taken to avoid a recurrence. This is best accomplished ...
    • Basics Of Operation And Application Of Oil Flooded Rotary Screw Compressors. 
      Pillis, Joseph W. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Rotary screw compressors are widely used today in chemical and petrochemical refining, gas processing, and in the oil patch. Common applications include refrigeration using hydrocarbons, hydrofluorocarbons (HFCs), and ...
    • Field Performance Testing Of Gas Turbine Driven Compressor Sets. 
      Kurz, Rainer; Brun, Klaus; Legrand, Daryl D. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Field testing of gas turbine compressor packages requires the accurate determination of efficiency, flow, head, power, and fuel flow in sometimes less than ideal working environments. Nonetheless, field test results have ...
    • Gas Turbine Power Augmentation By Fogging Of Inlet Air. 
      Meher-Homji, Cyrus B.; Mee, Thomas R. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Gas turbine output is a strong function of the ambient air temperature with power output dropping by 0.3 percent to 0.5 percent for every 1 F rise in ambient temperature. While this characteristic is inherent in any gas ...
    • High Frequency Fatigue Failure In Silencer/Pulsation Dampers For Oil Free Screw Compressors. 
      Lovelady, Jeff; Bielskus, Pete A. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Oil-free screw (OFS) compressors are capable of producing high-pressure pulsations in the discharge gas stream, over a frequency range of 200 to 3000 Hz. The fundamental pressure pulsation is due to the opening cycle ...
    • High Temperature Coatings For Industrial Gas Turbine Users. 
      Bernstein, Henry L. (Texas A&M University. Turbomachinery Laboratories, 1999)
      High temperature coatings are used for protecting the high temperature turbine components from environmental attack due to oxidation and hot corrosion. These coatings have developed from simple aluminide coatings to complex ...
    • Improvement Of Centrifugal Compressor Reliability Handling High Pressure And High Density Gas. 
      Gill, Richard S.; Osaki, Hiroaki; Mouri, Yasushi; Kawashima, Yasuhiro (Texas A&M University. Turbomachinery Laboratories, 1999)
      Centrifugal compressors handling high pressure and high density gas can sometimes encounter trouble such as rotor instability and impeller resonance vibration while in operation. In order to eliminate these problems, ...
    • Influence Of Oil Injection Method On Thrust Bearing Performance At Low Flow Conditions. 
      Stewart, Christopher B. (Texas A&M University. Turbomachinery Laboratories, 1999)
      The advantage of operating a thrust bearing in an evacuated cavity has been well documented in the literature. By draining the oil from the bottom of the housing and eliminating standing oil around the thrust collar, ...
    • Methodology Of Open Bladed Impeller Resonance Indentification. 
      Wang, Qian; Bartos, John C.; Houston, Russell A. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Open bladed impellers (impellers without shrouds) with high rotational speeds are a vital component of centrifugal compressors. The impeller reliability is directly related to the compressors’ successful operation and ...
    • Practical Methods For Field Performance Testing Centrifugal Compressors. 
      Wilcox, Ed (Texas A&M University. Turbomachinery Laboratories, 1999)
      Detailed performance analysis of centrifugal compressors in the field essential to evaluate their existing condition. The current performance of a compressor can also be a valuable tool in evaluating its reliability. A ...
    • Redesign Of Large Steam Turbines For Increased Reliability. 
      Leader, Malcolm E.; Rials, Randal G.; Rutan, Charlie R. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Two similar large steam turbines in an ethylene plant are profiled. One drives the cracked gas compressor train and the other drives the propylene refrigeration compressor. The two machines are similar and this paper ...
    • Retrofitting A Large Steam Turbine With A Mechanically Centered Squeeze Film Damper. 
      Edney, Stephen L.; Nicholas, John C. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Reviewed is the application of a squeeze film damper to a large steam turbine that addresses high vibration passing through the first critical speed. The turbine was the fifth near identical machine purchased over the ...
    • Rotordynamic Stability Tests On High-Pressure Radial Compressors. 
      Baumann, Urs (Texas A&M University. Turbomachinery Laboratories, 1999)
      This paper describes extensive measurements on high-pressure radial compressors with rated discharge pressures of more than 400 bar (5800 psi). The purpose of the measurements was to deterine m the damping behavior of the ...
    • Solutions To Field Problems Of A Gas Turbine-Axial Flow Chemical Process Compressor Train Based On Computer Simulation Of The Process. 
      Gozalez, Fancisco; Boyce, Meherwan P. (Texas A&M University. Turbomachinery Laboratories, 1999)
      Operating and maintaining key rotating equipment in a petrochemical service and tight economic constraints requires an indepth evaluation in performance deterioration of key gas turbines and axial flow compressor parameters. ...
    • Sources And Remedies Of High-Frequency Piping Vibration And Noise. 
      Price, Stephen M.; Smith, Donald R. (Texas A&M University. Turbomachinery Laboratories, 1999)
      In large diameter piping, high-frequency energy can produce excessive noise and vibration, and failures of thermowells, instrumentation, and attached small-bore piping. In severe cases, the pipe itself can fracture. Perhaps ...
    • Steam Turbine Governing Systems And Electronic Governor Retrofit. 
      Lamberson, Joseph S.; Reed, Jack (Texas A&M University. Turbomachinery Laboratories, 1999)
      Steam turbine retrofitted governing systems are being designed with today’s technology to operate a turbine in a safe and reliable manner. The design is completed with an extreme amount of effort being concentrated in the ...
    • Table of Contents for the Proceedings of the 28th Turbomachinery Symposium 
      Turbomachinery Symposium (28th : 1999) (Texas A&M University. Turbomachinery Laboratories, 1999)
    • Unexpected Rotordynamic Instability In A "Proven" FCC Wet Gas Compressor. 
      Wilcox, Ed (Texas A&M University. Turbomachinery Laboratories, 1999)
      The cause and effects of a large subsynchronous vibration (3.5 mils at 3490 cpm) in an FCC wet gas compressor are examined. The compressor is driven at 7850 rpm by a 6000 hp electric motor, through a speed-increasing ...
    • The Use Of Computational Fluid Dynamics And Scale Model Component Testing For A Large FCC Prototype Air Compressor. 
      Kotlyar, Michael; Engstrom, Reid; Giachi, Marco (Texas A&M University. Turbomachinery Laboratories, 1999)
      The purpose of this paper is to describe the use of computational fluid dynamics (CFD) and scale model testing techniques that were used accurately predict and confirm the performance of a large centrifugal air compressor. ...
    • Use Of Metal Bellows Noncontacting Seal And Guidelines For Steam Applications. 
      Young, Lionel; Burroughs, Joel N.; Huebner, Michael (Texas A&M University. Turbomachinery Laboratories, 1999)
      Steam turbines are used throughout the process industries and provide a reliable means of driving pumps, compressors; and other rotating equipment. Carbon rings are currently the most common way . of seali g these ...