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Revolving Vane Mechanism: A Novel Pumping Mechanism
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 25
Do You Have a Mechanical Seal Refurbishing Shop in Your Complex?
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 24: Author intends to convey: 1. Importance of having Mechanical Seal Refurbishment facility in a refinery complex, supported by interesting case studies on critical mechanical seal failures. Minimum set up ...
Revamp of Steam Turbine for Synthesis Gas Compressor at NFL Nangal
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 11: National Fertilizers Limited, Nangal Unit, India had under taken the revamp of Steam Turbine of Synthesis Gas Compressor in January 2014. The plant startup, after machine revamp, was delayed by 40 days, ...
Bad Actor Elimination in Pumps
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 12
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 ...
Abrupt Stoppage of Turbine Rotor, Running on Barring after Major Overhauling
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Case Study 15: This case study is about a typical experience where a steam turbine, which was running at 100 RPM on barring (turning) after overhaul, stopped abruptly and the rotor was found to be seized. The case study ...