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Now showing items 61-70 of 252
T13 - Screw Compressors
(Turbomachinery LaboratoryTexas A&M Engineering Experiment Station, [2019])
API Standard 619 for screw compressors
Wet and dry
Silencers for dry screw compressors
Noise reduction methods
Lubricants and lubricant carryover for flooded screw compressor
Over-compression and under-compression
Pulsation ...
TT10 - Fundamentals of Fluid Film Thrust Bearing Operation and Modeling
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2019])
Widely used in turbomachinery, the fluid film journal bearing is critical to a machines overall reliability level. Their design complexity and application severity continue to increase making it challenging for the plant ...
TT04 - Performance of Industrial Gas Turbines--Tutorial
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2019])
Industrial gas turbines have performance characteristics that distinctly depend on ambient and operating conditions. Application of these gas turbines, as well as the control and condition monitoring, require to consider ...
TT11 - Range Versus Efficiency--Striking the Proper Balance
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2019])
The paper addresses the balance between peak attainable efficiency and overall operating range that must be addressed when specifying, designing and/or selecting centrifugal compressors. The relative roles of the various ...
TL06 - Experimental Evaluation of Performance and Mechanical Reliability for High Pressure CO2 Integrally Geared Compressor
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2019])
Comprehensive tests were conducted for the main component as well as the complete machine and experimentally determined not only general performances such as overall aerodynamics and rotor vibrations but also usually unknown ...
TL03 - Numerical Models and Experimental Validation of High Speed, High Load, Hydrodynamic Bearings
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2019])
Three test campaigns conducted on high speed, high load, chromium-copper bearings are presented. The first bearing is a fixed-geometry, externally cooled pressure dam journal bearing. The second is a tilting pad journal ...
TL05 - A Resonance Condition Encountered in a Shop Overspeed Machine Due to Inertia Effects--The Theoretical Basis and Practical Experience
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2019])
This lecture will discuss the dynamic instability theory and resulting vibration characteristics of a high-speed rotor system when the ratio of the polar moment of inertia and transverse moment of inertia approaches a value ...
TL01 - A Refined Method to Check Tooth Contact Patterns of Gear--Guarantees Factory Quality Tooth Contact, but with Less Effort and Less Risk
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2017])
This paper describes an advanced method to check the tooth contact of a gear unit. To perform the check, only a small wrench and a precision frame spirit level are needed; both are commodity tools. Two reference bars must ...
PL08 - Torsional Rotordynamic Excitation, Natural Frequency and Damping Characteristics in a Viscous Centrifugal Pump Application
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2019])
This lecture is concerned with the torsional vibration characteristics of a double-suction centrifugal pump handling a highly viscous product. This test case serves to verify engineering assumptions about torsional excitation ...
CSP04 - Fault diagnosis of electric motor by analyzing vibration and current spectrum
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, [2019])
As reliability of electric power system has been significantly improved in recent decades, electric motors are widely used in petroleum and chemical industries because they are rugged and reliable in severe condition. Motor ...