Browsing by Author "Leader, Malcolm E."

Now showing items 1-15 of 15

    • API 684 - Torsional Aspects 
      Corbo, Mark A.; Pettinato, Brian; Leader, Malcolm E.; Kulhanek, Chris D. (Texas A&M University. Turbomachinery Laboratories, 2014)
    • The Design And Application Of A Squeeze Film Damper Bearing To A Flexible Steam Turbine Rotor. 
      Leader, Malcolm E.; Whalen, John K.; Grey, Godfrey G.; Hess, Thomas D. (Texas A&M University. Turbomachinery Laboratories, 1995)
      A critical multistage steam turbine in a large chemical plant experienced high vibration levels and frequent repairs. Numerous failures occurred while passing through the rotor's first critical speed including heavy rubs. ...
    • Design, Testing And Commissioning Of A Synchronous Motor-Gear-Axial Compressor. 
      Jackson, Charles; Leader, Malcolm E. (Texas A&M University. Turbomachinery Laboratories, 1983)
      This paper presents the design features involved in providing two air compressor trains at high efficiency. Testing and commissioning data are also presented, including specific electrical requirements; foundation and ...
    • Determining The Cause Of Bearing Failures In Circulating Water Pump Motors 
      Postill, Julia; Leader, Malcolm E.; Kelm, Ray D.; Brown, Chesley (Texas A&M University. Turbomachinery Laboratories, 2004)
      Eight vertical circulating water pumps are used to circulate condenser water at the generation station in a nuclear power plant. The pump installation is pictured in Figure 1. The motor pump system is arranged vertically ...
    • Improving The Mechanical Reliability Of A Turbine-Compressor-Expander Used In A Nitric Acid Manufacturing Plant. 
      Pardivala, Darayus; Phelps, LeEllen; Leader, Malcolm E. (Texas A&M University. Turbomachinery Laboratories, 1994)
      The repair of a turbine-compressor-expander to improve its mechanical reliability is described. The machine is unique, with two open-faced centrifugal compressor impellers in the center, three steam turbine stages overhanging ...
    • Improving The Reliability Of A High Speed Refrigeration Compressor. 
      Kelm, Ray D.; Leader, Malcolm E. (Texas A&M University. Turbomachinery Laboratories, 2007)
      A high speed (15,200 rpm) refrigeration centrifugal recycle compressor was experiencing severe reliability problems resulting in short run times between major overhauls. Typical run times were one to 12 weeks. The symptoms ...
    • Introduction To Rotordynamics Of Pumps Without Fluid Forces 
      Leader, Malcolm E. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
      This paper is for the user of rotating equipment, Reliability is the key to the bottom line and rotordynamics is often the significant factor in determining reliability. Rotordynamics is a very interesting and complicated ...
    • 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 ...
    • Short Course T5: API 684 - Torsional Aspects 
      Corbo, Mark A.; Pettinato, Brian; Leader, Malcolm E.; Kulhanek, Chris D. (Texas A&M University. Turbomachinery Laboratories, 2013)
    • A Solution For Variable Speed Vertical Pump Vibration Problems 
      Leader, Malcolm E. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1985)
    • Solving Stability Problems While Commissioning A 100 MW Turbine Generator Set. 
      Whalen, John K.; Leader, Malcolm E. (Texas A&M University. Turbomachinery Laboratories, 2003)
      A new cogeneration installation was in the process of being commissioned when severe subsynchronous vibration was detected on the generator during no load tests. Subsequently, two rotordynamics problems were discovered. ...
    • Torsional Rotordynamics of Machinery Equipment Strings 
      Corbo, Mark A.; Pettinato, Brian C.; Leader, Malcolm E.; Kulhanek, Chris D. (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
    • Torsional Rotordynamics of Machinery Equipment Strings 
      Corbo, Mark A.; Leader, Malcolm E.; Pettinato, Brian; Kulhanek, Chris D. (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2015)
    • Turbomachinery Health Measurement Application And Misapplication 
      Leader, Malcolm E. (Texas A&M University. Turbomachinery Laboratories, 1988)
      All machinery vibrates, has heat generated internally, and begins to wear as soon as it is put into service. The monitoring process must be customized for each class of equipment. If possible, each machine should be evaluated ...
    • Turbomachinery Health Measurement Application And Misapplication - Part II. 
      Leader, Malcolm E. (Texas A&M University. Turbomachinery Laboratories, 1989)
      In Part I of "Turbo machinery Health Measurement – Application and Misapplication" (Proceedings of the 17th Turbomachinery Symposium, 1988) the fundamentals of machinery monitoring were presented. This tutorial is presented ...