Browsing Turbomachinery and Pump Symposia by Author "International Pump Users Symposium (11th : 1994)"

Now showing items 1-19 of 19

    • Analysis And Testing Of Alternative Bearings Materials For Applications In Sealless Pumps 
      Lorenc, Jerome A.; Nelik, Lev (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      As the usage of sealless pumps increases, so do the demands for journal bearing materials that can operate successfully through the thermal upsets that can take place in these pumps. Material specification literature is ...
    • CMA/STLE Pump Seal Mass Emissions Study 
      Kittleman, Thomas; Pope, Michael; Adams, William (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      The Chemical Manufacturers Association and the Society of Tribologists and Lubrication Engineers conducted a study of the leak rates from pumps equipped with mechanical seals. The resulting analysis indicates that attention ...
    • Composite Pumps 
      Buse, Frederic W. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
    • Computational Fluid Dynamical Analysis Of Complex Internal Flows In Centrifugal Pumps 
      Cooper, Paul; Graf, Edward; Luce, Timothy (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      A commercial computational fluid dynamics (CFD) computer code was employed to compute the flow field from 105 percent down to 21 percent of the 4525 gpm BEP flowrate of a 1785 rpm, 1500 specific speed impeller of 14,000 ...
    • Design And Development Of Gas Lubricated Seals For Pumps 
      Wasser, James R.; Sailer, Rick; Warner, Greg (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      Gas lubricated double seals are becoming more common in industry for pump applications where product emission, product contamination, and operating costs are a concern. Technology proven on large gas compressors is not ...
    • The Development Of Low Friction, Low Leakage Mechanical Seals Using Laser Technology 
      Wallace, Neil M.; Muller, Heinz Konrad (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      An ideal mechanical seal would operate reliably, for long periods, without wear, with permanently low friction and extremely low leakage. Real mechanical seals often do wear and leak appreciably, however, particularly when ...
    • How To Avoid Building Problems Into Pumping Systems 
      Nelson, William E.; Dufour, John W. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      A poorly performing pump frequently exhibits both hydraulic and mechanical problems. Excessive noise, vibration, degradation of discharge pressure, repeated bearing failures, and sometimes impeller breakage lead to high ...
    • Improvement Of A High Temperature Bellows Seal 
      Key, William E.; Grace, Ronald L.; Lavelle, Kenneth E.; Young, Lionel A.; Wang, George; Holman, Al (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      An Inconel 718 metal bellows seal has been developed to meet the demands for high temperature applications in corrosive media such as high Sulphur bearing crude oil. Finite element analysis was used to develop concepts ...
    • Monitoring Sealless Pumps For Metal-To-Metal Contact Of The Internal Rotor 
      LeBleu, Julien (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      Monitoring vibration as a predictive maintenance tool will not consistently prevent catastrophic damage and/or fluid release from sealess pumps. When vibration readings are taken periodically, a pump may be destroyed between ...
    • Oil Mist Lubrication For The Petrochemical Industry 
      Towne, Charles A. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      Oil Mist lubrication has been shown to be a very effective method for reducing maintenance costs by minimizing lubrication related bearing failures. What oil mist is, how it works, and typical results from its application ...
    • Positive Displacement Pumps - Performance And Application 
      Parker, David B. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      The operating principles of positive displacement (PD) pumps differ from centrifugal pumps. This basic difference is evident in the pump’s response to a system’s head/flow curve. Several pump applications are presented to ...
    • Reliability Improvements To A High Pressure, High Temperature, Thirteen Stage Charge Pump 
      Johns, Dave A. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      Reliability of a high pressure charge pump has been a problem for over 20 years. Unplanned unit outages and sometimes fires accompany pump failures. This paper details the joint effort of the OEM and the user to resolve ...
    • The Role Of Off-Design Pump Operation On Mechanical Seal Performance 
      Adams, William V.; Waling, Lee A.; Dingman, Randy R.; Parker, Joseph C. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      Field experience indicates that a high percentage of centrifugal pumps in industrial applications are not operated at their best efficiency point as related to product flow. Dry running, gas ingestion, vibration, cavitation, ...
    • Rotating Equipment Pump Reliability Upgrading Project 
      Ringstead, Ed (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      In 1988, a general performance assessment was undertaken at Shell UK’s Stanlow Manufacturing Complex to review its competitive position in the market place. The review concluded there was a high level of maintenance ...
    • Sealless Centrifugal Pumps 
      Littlefield, David (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      Magnetic drive and canned motor pumps have many common features including bearing and rotor designs, internal cooling, and lubrication. The primary differences center on the manner in which the rotating magnetic field is ...
    • Table of Contents for the Proceedings of the 11th International Pump Users Symposium 
      International Pump Users Symposium (11th : 1994) (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
    • A Team Approach To Quality Pump Procurement And Installation 
      Self, Karen; Treichler, Stephen; Zamin, Mohammad (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      There are three factors that will enhance smooth equipment startup, operation, maintenance, and reliability in any new process plant: *Initial pump design and selection *Proper installation *Consistent operational support ...
    • Thermal Test Analysis Of Bearing Frame Inline Pumps On High Temperature Service 
      Freeland, Bruce E.; Cappellino, Charles A.; Paddock, Douglas (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      Testing of an API Standard 610[1] bearing frame inline pump at pumpage temperatures up to 650 degrees F is presented. The thermal response throughout the pump, and specifically in the bearing frame area, is quantified. ...
    • Vertical Diffuser Type Turbine, Mixed-Flow, And Axial-Flow (Propeller) Pumps 
      Greutink, Herman A. J. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
      Vertical diffuser type pumps, their application, construction, specialties and installation are discussed. Also, system curves and pump curves are handled.