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Now showing items 41-50 of 166
Impact Of Swing Conditions On Turbine Design.
(Texas A&M University. Turbomachinery Laboratories, 1983)
Frequently, large swings in operating conditions are specified when purchasing turbines. Although the objective of these operating conditions may be to insure conservatism, they also may result in turbine designs which ...
Variable Speed Fluid Couplings Driving Centrifugal Compressors And Other Centrifugal Machinery.
(Texas A&M University. Turbomachinery Laboratories, 1984)
In the past, large compressors in the petrochemical industry were mostly driven in one of two ways: by steam (or gas) turbines or by constant speed electrical motors. If the flow of the compressor had to be controlled, two ...
Analysis Of Service Failures.
(Texas A&M University. Turbomachinery Laboratories, 1984)
When a component fails prematurely, it is most important that an engineering evaluation be made of the loss. If one is alert enough to learn from past problems then "Experience gained is directly proportional to equipment ...
An Improved Method To Determine The Scoring Resistance Of Turbomachinery Gearing.
(Texas A&M University. Turbomachinery Laboratories, 1984)
The petrochemical and utility industries are experiencing a growing demand for high power turbogear units for use in large gas turbine compressor and generator drives. A growing number of high speed gears with ratings up ...
Two-Phase Mechanical Face Seal Operation: Experimental And Theoretical Observations
(Texas A&M University. Turbomachinery Laboratories, 1982)
Experimental and theoretical results related to two·phase mechanical face seal operation are presented. The basic cause for the transition from low friction to high friction operation with increasing temperature is discussed. ...
Rotor Dynamic Analysis And Bearing Optimization Study Of A 3800 Hp Steam Turbine
(Texas A&M University. Turbomachinery Laboratories, 1982)
This paper presents the highlights of a complete rotor dynamics analysis and bearing optimization study that was performed on a 3800 HP multistage steam turbine. This unit is coupled to a three stage, poster-type, centrifugal ...
Performance Improvement Of Mechanical Drive Steam Turbines
(Texas A&M University. Turbomachinery Laboratories, 1982)
Recently, the importance of mechanical drive steam turbine efficiency has been much highlighted in addition to its reliability with drastic increase in fuel cost. In this paper the typical losses in steam turbines are ...
Vibration Analysis Of Vertical Pumps.
(Texas A&M University. Turbomachinery Laboratories, 1986)
Vibration field data was measured on several large motor-driven vertical cooling water pumps which experienced excessive wear of the impellers, wear rings and seals after a short period of operation. The data indicated ...
Design Of Coupling Enclosures.
(Texas A&M University. Turbomachinery Laboratories, 1985)
All flexible shaft couplings must be surrounded by a guard, in order to comply with OHSA requirements. For turbomachinery applications, this guard is an oil-tight enclosure and the purpose is to trap any oil escaping the ...
Shop Vs. Field Corrections To Equipment.
(Texas A&M University. Turbomachinery Laboratories, 1985)
The objectives and types of shop testing for special purpose compressor trains are presented. Actual shop and field delays for various types of deficiencies are compared, and the period of time required to solve a problem ...