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Now showing items 11-18 of 18
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 ...
Lubrication And Seal Oil Systems - Common Problems And Practical Solutions.
(Texas A&M University. Turbomachinery Laboratories, 1993)
Current technologies now make it possible to build turbomachinery without the need for a lubrication and seal oil system. However, there is an established machinery population that still requires support systems for oil ...
Reduced Shaft Stiffness Lowers Running-Speed Bearing Loads And Vibration In A Single Stage Compressor.
(Texas A&M University. Turbomachinery Laboratories, 1993)
Turbomachines that run well above their fundamental lateral critical speeds (super-resonant), and are not heavily influenced by higher vibrational modes, can often benefit from reductions in shaft stiffness to lower the ...
Retrofit Of A Steam Turbine With Dry Gas Seals.
(Texas A&M University. Turbomachinery Laboratories, 1993)
The solution to a chronic utility problem, with a critical natural gas compression unit, at the Ammonia plant at Du Pont's Beaumont, Texas facility, is described. The most critical problem, chronic steam leakage from the ...
A Comprehensive Cause Analysis Of A Coupling Failure Induced By Torsional Oscillations In A Variable Speed Motor.
(Texas A&M University. Turbomachinery Laboratories, 1993)
The analysis of two compressor train coupling failures that were caused by a subsynchronous torsional resonance is discussed. These torsional failures manifested themselves as fatigue cracks that propagated across the ...