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Now showing items 11-20 of 22
A New Method For Secondary Containment Of Emissions From Primary Seals
(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 ...
The Use Of Wavy Face Technology In Various Gas Seal Applications
(Texas A&M University. Turbomachinery Laboratories, 1998)
Wavy face technology in mechanical face seals is the use of circumferential waves manufactured into a seal face. This unique wavy shape is bidirectional, can be used in liquids, gases or combination, and incorporates a ...
An Innovative Upgrade And Performance Rerate Of Large, High Speed, High Temperature, Multistage Barrel Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
High pressure hydrocracker charge is one of the most arduous services for multistage centrifugal pumps in the refining industry. Future plant capacity requirements of the hydrocracker unit at a United Kingdom site required ...
Sleeve Type Bearings And Their Lubrication Systems In Vertical Turbine Pumps, Mixed Flow And Axial Flow Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
Shafting and different sleeve type bearing systems, and the associated lubrication arrangements to support these systems in vertical diffuser type pumps, are discussed.
Analyzing Unacceptable Seal Performance
(Texas A&M University. Turbomachinery Laboratories, 1998)
For many years, acceptable seal performance was defined as “minimal or no visible leakage.” During the last decade, these definitions have changed immensely as government and industry have combined in a massive effort to ...
Continuous Monitoring Of Sealless Pumps - The Next Step
(Texas A&M University. Turbomachinery Laboratories, 1998)
All centrifugal sealless pumps, both canned motor and magnetic drive, should be monitored to determine mechanical condition. In sealless pumps, the pumped fluid is used as the cooling and lubricating medium for the pump ...
Application Guidelines For Pumping Liquids That Have A Large Dissolved Gas Content
(Texas A&M University. Turbomachinery Laboratories, 1998)
A case history is presented pertaining to five (four operating and one spare), 150 hp sealless pumps operating in parallel in a closed loop-65° chilled liquid system. The pumping system is designed to use a liquid refrigerant ...
High Temperature Twin Screw Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
High temperature applications present many engineering problems. Thermal growth of piping and vessels, coupled with typically lower viscosities at high temperature, has made centerline mounted centrifugal pumps the primary ...
Pump Impeller Lifetime Improvement Through Visual Study Of Leading-Edge Cavitation
(Texas A&M University. Turbomachinery Laboratories, 1998)
This paper describes the successful application of cavitation flow visualization to redesign the impeller of an 8.5-MW (11,400 hp) high energy double suction single stage boiler feedpump. Dual purpose of the investigation ...
Methods Of Investigation And Solution Of Stress, Vibration, And Noise Problems In Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
This tutorial discusses mechanical problems that occur in pumps and their systems, and how pump users can best detect and solve these problems. The answers to pump operational or reliability problems are often not obvious, ...