Now showing items 1258-1277 of 2440

    • Huebner, Michael (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2014)
      Mechanical seals are the most common means of sealing industrial centrifugal pumps. There are a wide variety of seal options including the use of single or dual seal arrangements. While dual seals provide benefits in leakage ...
    • Huebner, Michael (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2013)
      Mechanical seals are the most common means of sealing industrial centrifugal pumps. There are a wide variety of seal options including the use of single or dual seal arrangements. While dual seals provide benefits in leakage ...
    • Bloch, Heinz P. (Texas A&M University. Gas Turbine Laboratories, 1975)
      Compressor and driver shafts often prove to be overstressed in equipment uprate situations. This paper shows how a change from conventional gear-type couplings to the more recent diaphragm coupling design can lower the ...
    • Eberle, Kelly (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries; Texas A & M University. Libraries, 2021)
      A benefit claimed for vane compressors is they do not have vibrations problems that are experienced by other positive displacement machines. This case study demonstrates high vibration and fatigue failures on a sliding ...
    • Miranda, Marcelo Accorsi; Meira, Orlando Guerreiro (Texas A&M University. Turbomachinery Laboratories, 2008)
      About 40 to 50 percent of the power required for the operations of a typical offshore oil and gas platform is used for gas compression. Miranda and Brick (2004) described a comprehensive procedure that could be applied to ...
    • Miranda, Marcelo Accorsi; Brick, Eduardo Siqueira (Texas A&M University. Turbomachinery Laboratories, 2004)
      This paper describes a comprehensive life cycle cost (LCC) analysis procedure, regarding turbomachinery systems for offshore oil and gas production platforms. The LCC analysis includes the development of a cost breakdown ...
    • Quoix, Bernard; Bellocq, Pablo; Pesquet, Amelie (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      The main driver to define the time between overhauls of a gas turbine is the life of the hot components. For an Oil&Gas operator, a turbine overhaul represents a major cost and therefore is a key point for performance ...
    • Allah, Wesam Khalaf; Ballard, Fernando; Bakr, Majed (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, 2022)
      NGL shipping pumps have experienced high number of mechanical seal failures during the first five years of operation. There are five pumps where each pump is equipped with two mechanical seals. In some instances, the ...
    • Sandberg, Mark E.; Colby, Gary M. (Texas A&M University. Turbomachinery Laboratories, 2013)
      The American Society of Mechanical Engineers (ASME) “Performance Test Code on Compressors and Exhausters,” ASME PTC 10-1997, has served worldwide as the standard for determining centrifugal compressor thermodynamic performance ...
    • Katayama, Tatsuo; Okada, Akihisa (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1992)
      In view of the inflammability of LNG (liquefied natural gas), submerged type pumps are normally used to protect against leaks. The overhaul interval of an LNG pump, therefore, is subject to the life of its ball bearings, ...
    • Meher-Homji, Cyrus; Pillai, Pradeep; Kurz, Rainer; Rasmussen, Pete (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
    • Pacheco, Jorge E.; Fakhri, Syed; Vezier, Clémentine; Koch, Jay M. (Texas A&M University. Turbomachinery Laboratories, 2013)
      This paper presents results of the large scale testing of the first two stages, including incoming sidestream flow of a LNG propane compressor. The large scale test was performed at 90% scale of the production propane ...
    • Elliott, Gregory L.; McCraw, James F.; Shoup, Thomas P. (Texas A&M University. Turbomachinery Laboratories, 2010)
    • Linden, David (Texas A&M University. Turbomachinery Laboratories, 2011)
      One of the primary causes of flow path failures in industrial axial flow compressors has been attributed to or is related to corrosion damage. Over the years, a number of corrosion mitigations have been utilized by various ...
    • Parris, Mark; Cameron, Dan (Texas A&M University. Turbomachinery Laboratories, 1999)
      At most industrial facilities, the engineering, maintenance, and operation groups are under great pressure to increase reliability and also reduce costs. This paper discusses the role of operators in achieving low cost ...
    • Greenwood, Stuart A. (Texas A&M University. Turbomachinery Laboratories, 2000)
      The need to control exhaust emissions from stationary power sources is dictated by environmental regulations that limit the amount of smoke (particulates), sulfur dioxide, carbon monoxide, hydrocarbons, and oxides of ...
    • Weaver, Firm L. (Texas A&M University. Turbomachinery Laboratories, 1983)
      Bucket failures have been known to occur on the later stages of industrial type steam turbines after prolonged operational life of as much as five or six years. All of these failures are characteristically fatigue in nature. ...
    • Kocur, John A.; Hayles, George C. (Texas A&M University. Turbomachinery Laboratories, 2004)
      A catalytic gas process compressor experienced low frequency vibrations in excess of trip levels following installation of a honeycomb balance piston. After 12 years of operation, low seal oil differential forced an unplanned ...
    • Von Nimitz, Walter W. (Texas A&M University. Gas Turbine Laboratories, 1975)
      Low frequency vibrations at centrifugal compressor and pump installations are usually discarded as unlikely. However, severe acoustically excited vibrations at frequencies as low as 5 or 10 Hz have been observed at a number ...
    • Péton, Nicolas; Drygin, Sergey; Ponnanna, Bopanna Pudiyokada; Mukupe, Douglas (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries; Texas A & M University. Libraries, 2020)
      Carbonized particles can get deposited in housing oil seal clearances causing a partial rub like phenomenon. Friction caused due to reduced clearances because of accumulation of carbonized particles leads to shaft thermal ...