Search
Now showing items 51-60 of 87
Pump Specifications That Improve Mechanical Seal Performance
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
As the chemical, petrochemical and petroleum refining industries continue to experience a slower growth rate than at any time in the last 10 years, emphasis on cost reduction, equipment reliability and “the wat we do our ...
Maintenance And Troubleshooting Of Single-Stage Centrifugal Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
A centrifugal pump’s hydraulic performance and reliability can differ drastically from its published performance expectations. The cause of the discrepancy may involve the hydraulic features of the pump. NPSH (net positive ...
Symmetrical Seal Design: A Sealing Concept For Today
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
The symmetrical seal offers a significant advancement in seal design to pump manufacturers and users it is the first alternative design to complex seal arrangements which are required to fit a stuffing box designed for ...
Improved Mechanical Seal Design Through Mathematical Modelling
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
The mechanical seal manufacturer can now offer the user new seal designs quickly and efficiently, and can respond to trouble shooting requests rapidly, through the use of modern, computerized, seal design techniques. In ...
Visual Studies Of Cavitation In Pumping Machinery
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
The visual study of cavitation in pumping machinery now plays an important role in its development-particularly where high stage energies are concerned. The incomplete picture provided by traditional head decay tests is ...
A Solution For Variable Speed Vertical Pump Vibration Problems
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1985)
Flow Field Investigation For A Series Of Right Angle Minimum Axial Depth Pump Intakes
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1985)
A series of right-angle pump intakes, incorporating minimum axial depths and decelerating flows, has been experimentally evaluated using an air flow test procedure. Performance was measured, internal flow fields observed ...
Changes In Hydraulic Component Geometries Greatly Increased Power Plant Availability And Reduced Maintenance Costs: Case Histories
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
A systematic investigation was started within the Texas Utilities Generating Company Power station feedwater pump systems due to unsatisfactory unit availability, frequent equipment breakdown, high maintenance costs, and ...
A New Method For Computing Minimum Flow
(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 ...
Centrifugal Pump Specification And Selection - A System's Approach
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1988)
Proper pump specification and selection results in the best pump being purchased for the required service. Economic considerations may meant that “best” is not always the most efficient, best hydraulic fit or most expensive. ...