Search
Now showing items 1-10 of 17
A Case History - Improved Hydraulic Design Lowers Cavitation Erosion And Vibrations Of A Water Transport Pump
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
In this case history, the successful application of well-known tools for hydraulic design changes and cavitation erosion prediction is presented. A description of the tools can be found in many publications and will not ...
Pressure Pulsation Dampening Methods For Reciprocating Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
The safe design of piping installations for reciprocating pumps requires proper knowledge about the pump installation interaction. A compact review shows pump vibration spectra excited by the pumps and methods of numerical ...
Model Predictions And Experimental Results For The Rotordynamic Characteristics Of Leakage Flows In Centrifugal Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
The role played by fluid forces in determining the rotordynamic stability and characteristics of a centrifugal pump is gaining increasing attention. The present research investigates the contributions to the rotor dynamic ...
Corrosion In Pumps And Other Damage Mechanisms
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
The successful application of pumps in handling a variety of fluids depends upon knowledgeable design considerations, and the selection of the correct materials for the liquid environment. A previous tutorial “Corrosion ...
Application Of Variable Speed Electric Motors For Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
Pumps operated with variable and higher speed electric motors provide numerous benefits such as greater range of flow and head, higher head from a single stage, valve elimination, and energy saving. To achieve these benefits, ...
Vibration Problems With An Electric Motor For A Centrifugal Pump Installation
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
A case history is presented in which vibration related problems with two pole electric motors have delayed acceptance of the complete pump packages by the end user. Noncompliance with contract specifications led to a major ...
The Shortcomings Of Using Pump Suction Specific Speed Alone To Avoid Suction Recirculation Problems
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
There is a mistaken belief in the pump industry (fueled by many publications) that the best way to avoid suction recirculation problems is to design and/or apply only pumps having low suction specific speed values (below ...
Dynamic Loading On Pumps - Causes For Vibration
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
Some insight into the mechanism which generate lateral dynamic loads, and hence vibrations, on centrifugal pumps is presented in a general way, and the individual loads are explained and quantified. Without extensive use ...
Sintered Alpha Silicon Carbide Pump Bearings - Tribological Materials Optimization To Improve Reliability
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
The material properties of sintered silicon carbide, such as universal corrosion resistance, hardness, strength, and thermal conductivity, offer a great potential as sealless pump bearings and mechanical seal faces. In ...
Using Fault Trees To Determine The Root Cause Of Rotating Equipment Failures
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
The great value of using multidisciplinary task groups to conduct root cause failure analyses (RCFA) on pump and rotating equipment failures is discussed. The RCFA method offers its users a structured means of achieving ...