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Now showing items 91-100 of 188
Test Of Process Turbocompressors Without CFC Gasses.
(Texas A&M University. Turbomachinery Laboratories, 1993)
Increasing restrictions from environmental protection laws will necessitate at least partial substitution of chlorofluorocarbon (CFC) gases still in use today for performance tests of turbocompressors in closed loops. The ...
Large Motor Installation And Startup.
(Texas A&M University. Turbomachinery Laboratories, 1993)
The installation tasks and startup considerations necessary to commission large electric motors are discussed. The tasks are discussed in the usual installation sequence, but some series of tasks may need repetition if the ...
Baseline Mapping Of Discontinuities Through Nondestructive Testing.
(Texas A&M University. Turbomachinery Laboratories, 1993)
Manufacturers in the compressor industry have experienced an increasing interest by their customers to be able to compare the as manufactured condition of critical components to their subsequent condition over time in ...
Lateral Vibration Created By Torsional Coupling Of A Centrifugal Compressor System Driven By A Current Source Drive For A Variable Speed Induction Motor.
(Texas A&M University. Turbomachinery Laboratories, 1992)
A serious radial gear vibration was determined to be caused by significant torsional excitation from a squirrel cage induction motor that was controlled by a variable frequency current source inverter drive. Field test ...
Specifying Steam And Rating Conditions For Special Purpose Steam Turbines.
(Texas A&M University. Turbomachinery Laboratories, 1992)
The data required by turbine vendors to properly develop a design for a special purpose steam turbine are discussed in detail. Topics covered include discussion of continuous steam conditions, turbine power ratings and ...
Efficient Part Load Combined Cycle Operation.
(Texas A&M University. Turbomachinery Laboratories, 1990)
During the oil crisis in the 1970s, many electric utilities assigned their base load portion of electric generation requirements to nuclear and coal fired steam plants. The intermediate duty in some cases was assigned to ...
Troubleshooting High Speed Couplings.
(Texas A&M University. Turbomachinery Laboratories, 1990)
Couplings are a major concern of turbo equipment users. Couplings can and do result in many hours of lost sleep for the plant equipment specialists, and can cause failure of equipment resulting in extended periods of ...
Fluid Film Bearing Fundamentals And Failure Analysis.
(Texas A&M University. Turbomachinery Laboratories, 1991)
Fluid film bearing technology is presented in this tutorial as it applies to turbomachinery equipment. The focus here is on the practical aspects of fluid film journal bearings, as opposed to theoretical analysis. Failure ...
Procedure For Selecting And Evaluating A Special Purpose Motor.
(Texas A&M University. Turbomachinery Laboratories, 1991)
During recent years, there has been considerable interest in motors. This interest has stemmed from what appears to be an increase in motor problems. As a result of this, along with the need for machinery reliability, ...
The Investigation Of Suitability Of Abradable Seal Materials For Application In Centrifugal Compressors And Steam Turbines.
(Texas A&M University. Turbomachinery Laboratories, 1991)
Clearances between sealing devices of rotating and stationary components of turbomachinery have always been important to engineers in controlling gas leakages. One way of accomplishing this is by the use of abradable seals ...