Browsing Turbomachinery and Pump Symposia by Title
Now showing items 1420-1439 of 2440
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(Texas A&M University. Turbomachinery Laboratories, 2001)The proposed Fifth Edition of API 618 (“Reciprocating Compressors for Petroleum, Chemical, and Gas Industry Services”) incorporates significant changes in the section concerning pulsation and vibration control. There are ...
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(Texas A&M University. Turbomachinery Laboratories, 1999)A balanced committee of users, designers, researchers, and pump manufacturers has produced a revised Hydraulic Institute Pump Intake Design Standard that is considerably different from the existing standard and more ...
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(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1988)Appropriate specification of minimum flows is important to avert pump reliability problems. A method is presented for the calculation of minimum flow by allowing a satisfactory margin below the onset of flow recirculation ...
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(Texas A&M University. Turbomachinery Laboratories, 1998)Recent industrial advances in secondary containment methods have increased the role of secondary containment systems in environmental corporate strategies aimed at lowering the risks associated with leakage from primary ...
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(Texas A&M University. Turbomachinery Laboratories, 2008)Rotordynamic calculations done on most turbomachinery often discount or even completely ignore the “backward” modes. In fact, many rotating equipment engineers have never observed a backward mode, leading some to doubt ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)Fixed-Speed Electric Motors driving Centrifugal Compressors are designed considering the pressurized start-up as the most critical condition in terms of the torque requirement. Their capability is checked during the design ...
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(Texas A&M University. Turbomachinery Laboratories, 1987)At the end of the forties, the integrally geared centrifugal compressor was developed and initially used for air, and later for nitrogen and other gases. To date, about 10,000 units are in use working in the capacity range ...
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(Texas A&M University. Turbomachinery Laboratories, 2004)To compete in today’s economic climate, petrochemical plants are strategizing on continuous long-term operation to reduce maintenance costs and increase productivity. This strategy has led some plants to go from eight years ...
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(Texas A&M University. Turbomachinery Laboratories, 2002)Recently, synthesis gas compressor drive steam turbines have required upgrading to increase efficiency and reliability for saving both operation and maintenance costs in many ammonia plants. This paper introduces the latest ...
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(Texas A&M University. Gas Turbine Laboratories, 1972)This paper presents a cursory review of some of the recent work that has been done in turbine aerodynamic research at NASA-Lewis Research Center. Topics discussed include the aerodynamic effect of turbine coolant, high ...
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(Texas A&M University. Turbomachinery Laboratories, 1991)The new design technology of the mechanical drive steam turbines used in the chemical plant industry is presented. In order to improve the performance of high speed turbines, the new high pressure ratio impulse stage has ...
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(Texas A&M University. Turbomachinery Laboratories, 2005)The combination of a 16 inch Pitot tube pump with a switched reluctance motor represents a significant development in the field of high-pressure pumping. A field proven Pitot tube pump design has been mechanically integrated ...
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(Texas A&M University. Gas Turbine Laboratories, 1979)This paper presents the development and analysis of new critical speed criteria. The critical speed has been defined as the resonant speed of the rotor bearing system at which large response amplitudes can occur. However, ...
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Next Generation Pump Systems Enable New Opportunities For Asset Management And Economic Optimization (Texas A&M University. Turbomachinery Laboratories, 2002)There is growing interest in cost-effective techniques that can detect the earliest stage of degradation or malfunction and predict machinery failure. New diagnostic and prognostic techniques may be effectively coupled ...
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(Texas A&M University. Turbomachinery Laboratories, 2012)
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(Texas A&M University. Turbomachinery Laboratories, 2007)This Paper describes design, fabrication, installation and operational experience with non-metallic brush seals installed in all four GT Units, GE-made, Frame No 7, model EA, presently operating at Watson Cogeneration ...
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(Texas A&M University. Turbomachinery Laboratories, 1988)Nondestructive evaluation is becoming increasingly important in determining the quality of materials and fabrications used in the manufacture and maintenance of rotating machinery. NDE has long been used as a tool for ...
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(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2015)Measurement of the modal parameters of rotors is of interest to understand the dynamics of rotating systems, validate design models, and assess how operational parameters affect the vibration response. Torsional vibratory ...
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(Texas A&M University. Turbomachinery Laboratories, 2010)Continuous improvements in the power rating and switching characteristics of power semiconductor devices have enabled the use of power electronics converters in high power variable speed drives (VSDs). These multimegawatt ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)This case study discusses the rerate of a set of vertically-mounted single-stage end-suction centrifugal pumps used for low pressure safety injection (LPSI) in a nuclear power plant. The original LPSI pumps were supplied ...