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Mechanical Seals with DiamondFace Technology Used in Different Pipeline Services
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Technical Brief 2: Mechanical seals are used in a wide range of industrial applications, sealing gases in a compressor or sealing liquids in a pump. Reliability, longevity, emission control and safety are now more important ...
Control Systems. Transient Modeling and Analysis of Centrifugal Compressors
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Tutorial 10A: Centrifugal compressors are subject to transient events, such as emergency shutdowns, which can cause energetic surge events during rapid shutdown transients. Many modeling tools are used to predict the ...
Gas Turbine Packaging Options and Features
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Tutorial 13: This tutorial provides an overview of typical packaging options for gas turbines in industrial applications. Applicable standards are discussed. The requirements for different systems, such as air filtration, ...
Fundamentals of Fluid Film Journal Bearing Operation and Modeling
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Tutorial 14: Widely used in turbomachinery, the fluid film journal bearing is critical to a machine’s overall reliability level. Their design complexity and application severity continue to increase making it challenging ...
Stress Corrosion Failure of a Low Pressure Disk from a 800MW Steam Turbine
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 1: Stress corrosion cracking is known to be a function of stress, material and environment. However, a fourth variable that is often overlooked is operating time. Maintaining steam chemistry within OEM and ...
Emergency Damage Restoration Experiences of 25MW Heavy-Duty Gas Turbine: Bearing Retrofit Design and Test Run
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 6: A 25MW gas turbine had been damaged during operation. Particularly, its tilting pad journal bearings and shaft journals had suffered complete wiping‐out and deep crack damages, respectively. For an emergency ...
Polytropic Efficiency Improvements and Sustenance on Centrifugal Compressor: Corrosion Erosion and Impact of Fouling
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 5: This paper presents a case study on the rapid deterioration of compressor polytropic efficiency relating to systemic fouling and corrosion issues. Due to such issues, compressor service life was reduced from ...
Investigation of Steam Turbine Blade Failure
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 19: Blade failure was observed on a backpressure steam turbine (driving a centrifugal compressor) after it was in service for more than one year. This paper presents details of observations, inspections carried ...
Effects of Shaft Geometric Unconformities on the Rotor-Dynamic Behavior in Hard Coupled Equipment
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 17: This case study deals with a 25MW turbo-generator train with a semi-rigid connection between generator and gearbox. For this application, machine alignment and connection is a key factor for a smooth ...
Dry Gas Seals. Application of Double vs. Tandem Dry Gas Seal Advantages
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Tutorial 19B: Traditionally double seals have been used for low pressure applications when nitrogen gas at pressure higher than process was available for sealing. Double seals were not applied to low pressure processes ...