Browsing by Author "International Pump Users Symposium (14th : 1997)"
Now showing items 1-19 of 19
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Graf, Edward; Marchi, John F. (Texas A&M University. Turbomachinery Laboratories, 1997)Chemical and process plants usually contain numerous valves and pumps in a complex network of pipe runs. Plant design and pump selection are usually based on steady state design conditions. However, the opening or closing ...
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Stavale, Anthony E. (Texas A&M University. Turbomachinery Laboratories, 1997)Dry run failures in sealless pumps continue to be of major concern to users and, in some cases, have precluded the purchase of these types of pumps. Users are demanding robust pump designs that are more tolerant of dry ...
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Purcell, John E.; Silvaggio, Joseph A. (Texas A&M University. Turbomachinery Laboratories, 1997)Positive displacement and centrifugal pumps sometimes seem to inhabit different worlds. Users are generally much more familiar with one type than the other. This causes some confusion when the user’s expectations are based ...
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Lewis, Andrew L.; Szenasi, Fred R.; Roll, Daniel R. (Texas A&M University. Turbomachinery Laboratories, 1997)A case history is presented pertaining to piping vibrations in a medium consistency paper pulp pumping system at a large North American integrated pulp and paper mill that ultimately resulted in pipe rupture. The system ...
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O'Brien, Alan; Wasser, James R. (Texas A&M University. Turbomachinery Laboratories, 1997)Since the release of dual gas lubricated seal technology for process pumps over three years ago, this technology has provided a more versatile, efficient, safe, and less costly alternative to sealless pumps and traditional ...
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Maceyka, Thomas D.; Kay, Peter; Leet, David R. (Texas A&M University. Turbomachinery Laboratories, 1997)Improvement in the efficiency of enhanced oil recovery techniques at the Kuparak, Alaska, oil field required replacement of reciprocating pump with a larger capacity centrifugal pump. During the specification of a high ...
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Fundus, Michael; Knoch, Heinrich (Texas A&M University. Turbomachinery Laboratories, 1997)Promising new developments to master friction and wear under fry run conditions are diamond like carbon coatings. They offer high hardness and wear resistance, combined with a low coefficient of friction. Best coating ...
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Dodd, V. Ray; Hinkel, Thomas E. (Texas A&M University. Turbomachinery Laboratories, 1997)A reliable mechanical seal is a happy seal. A happy seal is one that runs in an environment that is cool, clean, and maintains a satisfactory vapor pressure margin. However, this is not always the case. Not all Pumped ...
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Patel, Vinod P.; Coppins, Donald G. (Texas A&M University. Turbomachinery Laboratories, 1997)Oil lubrication systems, when required and provided for the pumping system, are the life insurance policy for the process. If the oil lubrication system should fail to perform, the results are bearing failures in pumps, ...
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Swann, Michael K.; Watkins, Jonathan; Bornstein, Kevin R. (Texas A&M University. Turbomachinery Laboratories, 1997)Interest in nonoil lubricated bearings is growing, due to a number of benefits derived from these bearings: improved pump performance and reliability, enhanced pump maintainability, elimination of the cost and maintenance ...
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Buck, Gordon S. (Texas A&M University. Turbomachinery Laboratories, 1997)Although mechanical seals are widely used in many machines, there is no universally accepted system for establishing limits of pressure, temperature, and speed. As a result, manufacturers of mechanical seals may use different ...
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Shank, Paul (Texas A&M University. Turbomachinery Laboratories, 1997)Information technology, specifically computer mediated communication (CMC), will revolutionize the pump industry, from selection through installation, operation, and maintenance. There will be winners and losers. It will ...
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Rossi, Stephen C.; Cary, John B. (Texas A&M University. Turbomachinery Laboratories, 1997)Most states have adopted regulations that limit fugitive hydrocarbon emissions from mechanical seals in centrifugal pumps. In California, limits as low as 100 ppm have been imposed. Users are faced with few choices to meet ...
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Laux, Cord H.; Burchhardt, Uwe; Kirstein, Uwe (Texas A&M University. Turbomachinery Laboratories, 1997)The Janschwalde Power Station consists of six 500 MW units that were commissioned between 1981 and 1989. These units, which were equipped with turbo feedpumps manufactured in Russia, had an average efficiency of only 78 ...
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International Pump Users Symposium (14th : 1997) (Texas A&M University. Turbomachinery Laboratories, 1997)
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Joseph, John P.; Monroe, Perry C. (Texas A&M University. Turbomachinery Laboratories, 1997)Most pump reliability problems are rooted in basic errors that are made in the design, application, installation, maintenance, and/or operation of pumping systems. When the final, “correct,” solution to the system problem ...
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Schiavello, Bruno; Angle, Thomas L.; Roudnev, Aleksander S.; Shaw, James G.; Whitmire, Kent; Taylor, Charles W.; Versaw, William F.; Chacchia, Daniel W. (Texas A&M University. Turbomachinery Laboratories, 1997)
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Michell, Frank L.; Drew, Daniel H.; Wotring, Timothy L.; Koch, Richard P. (Texas A&M University. Turbomachinery Laboratories, 1997)On the American Electric Power system, increases in generating unit size progressed from a 225 megawatt (MW) unit to the 1300 MW units, which remain the largest supercritical coal fired electric generating units in the ...
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Samarasekera, H. (Texas A&M University. Turbomachinery Laboratories, 1997)Heat transport pumps in Canadian deuterium uranium reactor circulate coolant to remove fuel decay heat from the reactor core during normal and accident conditions. A loss-of-coolant-accident is one condition where heat ...