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Now showing items 61-70 of 178
Disc Pump-Type Pump Technology For Hard-To-Pump Applications
(Texas A&M University. Turbomachinery Laboratories, 2000)
This paper describes a unique pumping concept based on a noncontact mechanism operating solely using the principles of boundary layer and viscous drag. The first section focuses on the pumping technology itself, describing ...
Flow Margin Improvement Of Existing Cooling Water Pumps With Respect To Extreme Part Load Operation Conditions
(Texas A&M University. Turbomachinery Laboratories, 2000)
In the present paper, the adaptation of existing cooling water pumps to extreme part load condition by cutting down the impeller in the meridional plane is described. The influence of different impeller shapes on the head ...
Reducing Reliability Incidents And Improving Meantime Between Repair
(Texas A&M University. Turbomachinery Laboratories, 2008)
Recently much attention is being given to the total cost of pump ownership. In many cases, for process plants, the cost of unscheduled maintenance can become critical since these costs can impact production runs and result ...
Numerical Prediction On Air Entrainment In Pump Intakes.
(Texas A&M University. Turbomachinery Laboratories, 2008)
Pump intake is designed to provide adequate water supply to pumps. It is essential to design the pump intake to provide fairly uniform and swirl free flow to pumps. However, it is not always possible due to site constraints. ...
Collaborative Seal Selection : From Problem Evaluation To Commissioning
(Texas A&M University. Turbomachinery Laboratories, 2008)
Analysis Guide For Variable Frequency Drive Operated Centrifugal Pumps
(Texas A&M University. Turbomachinery Laboratories, 2008)
The use of variable frequency drives (VFD) in pumping applications with variable-duty requirements provides the user with a variety of benefits, including potentially significant energy savings and improved reliability ...
Application Of Numerical Optimization To Seawater Pumping Systems
(Texas A&M University. Turbomachinery Laboratories, 2008)
A new project to increase the oil produced at Khurais, Saudi Arabia, was the focus of a study to determine the optimal pipeline size and pump combination for a 90.4 mile (145.5 km) long, treated-seawater transfer line ...
The Coupled Vibration Analysis For Vertical Pumps And The Pump Station
(Texas A&M University. Turbomachinery Laboratories, 2008)
At the engineering stage of pump stations, the evaluation of the pump vibration is an important consideration. Finite element Method (FEM) is an effective method for prediction of vibration and avoidance of resonance ...
Vertical Pump Motor Synchronous Vibration Case Study
(Texas A&M University. Turbomachinery Laboratories, 2008)
A 4160V, 3600 RPM motor on an existing vertical pump suffered a major failure attributed to a lightning strike. After repair vibration levels were well above shutdown with the motor running at above 1 inch/second. Several ...
Pump Cavitation: Various NPSHR Criteria, NPSHA Margins, Impeller Life Expectancy
(Texas A&M University. Turbomachinery Laboratories, 2009)
This tutorial deals with pump cavitation, discussing various net positive suction head required (NPSHR) criteria, net positive suction head available (NPSHA) margins and impeller life expectancy. It gives an introduction ...