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Turbomachinery Problems - Lube And Seal System Revisited
(Texas A&M University. Gas Turbine Laboratories, 1978)
Even an apparently well-designed lube and seal system can and will cause turbomachinery problems to occur if all operating parameters are not considered in the design of the lube and seal system. Lube and seal system design, ...
Dynamic Simulation Of Centrifugal Compressor Systems
(Texas A&M University. Gas Turbine Laboratories, 1977)
The capacity, pressure, speed and horsepower of centrifugal compressors have been trending higher and higher in the past few years. Not only are machine designers faced with increasing aerodynamic and mechanical problems, ...
Improving Cooling Tower Fan System Efficiencies
(Texas A&M University. Gas Turbine Laboratories, 1978)
After a look at the problem for air cooled heat exchangers and cooling towers using axial fans, ways to improve system efficiencies in three areas are discussed: before the fin system design is finalized, improvements in ...
High-Speed Gear Vibration And Noise Experience
(Texas A&M University. Gas Turbine Laboratories, 1977)
High-speed gear pinion precession-shuttling and noise, caused by overhanging weight of the coupling and by misalignment forces generated by tooth friction in the coupling, are being controlled by reduced bearing clearances. ...
Installation Of Large Rotating Equipment Systems - A Contractor's Comments
(Texas A&M University. Gas Turbine Laboratories, 1976)
The profitability, reliability and maintenance of gas turbine driven centrifugal compressor units are not inherent with the machinery, but for the most part, depend on the piping system to which they are connected and the ...
Site Balancing Of A Large Flexible Rotor Containing Unbalance Eccentricity And Permanent Residual Bow
(Texas A&M University. Gas Turbine Laboratories, 1976)
When turbine-generators operating at constant speed require site trim balancing, this is most commonly performed at the synchronous speed using a conventional influence coefficient method. In some cases, the vibration of ...
Axial Vibration Characteristics Of Metal-Flexing Couplings
(Texas A&M University. Gas Turbine Laboratories, 1976)
Increased usage of metal-flexing couplings on high-speed rotating machinery has created awareness of the axial resonant vibration characteristics of this type of coupling. A testing program has been conducted at Rexnord ...
Planning Turbomachinery Overhauls And Documenting The Results
(Texas A&M University. Gas Turbine Laboratories, 1978)
The paper covers the subject of overhauling turbomachines with particular emphasis on practical field procedures and proven concepts. It does not dwell on one type of machine, but multi-stage centrifugal compressors and ...
Plant Lubrication
(Texas A&M University. Gas Turbine Laboratories, 1978)
The correct lubrication of plant equipment is an important factor in sustaining production with reduced equipment outage and lower maintenance costs. A well planned and coordinated lubrication program is a necessary ...
The Role Of Hydraulic Balance In Mechanical Pump Seals
(Texas A&M University. Gas Turbine Laboratories, 1978)
The mechanical seal is the least reliable component in centrifugal pumps. Most seals fail prematurely, i.e., before the seal face wears out. One cause of premature failure is face instability when the seal geometric balance ...