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Now showing items 11-20 of 37
The Use Of Honeycomb Seals In Stabilizing Two Centrifugal Compressors.
(Texas A&M University. Turbomachinery Laboratories, 1993)
The stabilizing effects achieved by replacing labyrinth seals with honeycomb seals are described. Although honeycomb seals have been used for some time in high pressure compressors and other turbomachinery applications, ...
The Practical Application Of CFD In The Design Of Industrial Centrifugal Impellers.
(Texas A&M University. Turbomachinery Laboratories, 1993)
The practical application of computational fluid dynamics software in the industrial turbomachinery design process is discussed. Such codes have been used for years in the design of gas turbines, but have long been ...
Shifting Critical Speeds Out Of The Operating Range By Changing From Tilting Pad To Sleeve Bearings.
(Texas A&M University. Turbomachinery Laboratories, 1993)
One property of heavily to moderately loaded sleeve bearings is the resulting asymmetric stiffness and damping coefficients. These asymmetric properties often result in split first critical speeds. Since the horizontal ...
Safety, Application, And Service Factors As Applied To Shaft Couplings.
(Texas A&M University. Turbomachinery Laboratories, 1993)
Shaft couplings are rated by their manufacturers as to how much torque they can transmit, how much misalignment they can accommodate, and the maximum speed at which they can operate. Still, manufacturers, buyers, or various ...
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 ...