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On the Performance of Tilting Pad Bearings: A Novel Model for Lubricant Mixing at Oil Feed Ports with Improved Estimation of Pads’ Inlet Temperature and Its Validation Against Experimental Data
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Energy efficient operation of fluid film bearings demands savings in delivery flow while also managing to reduce fluid film and
pad temperatures. To achieve this goal, tilting pad journal bearings (TPJBs) implement a variety ...
Leakage and Force Coefficients for Pump Annular Seals Operating With Air/Oil Mixtures: Measurements Vs Predictions and Air Injection to Increase Seal Dynamic Stiffness
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
The lecture presents measurements of leakage and dynamic force coefficients for six annular seals operating with an air in oil mixture ranging from pure liquid to just air. Each seal has a distinct clearance configuration: ...
Bearings for Oil-Free Rotating Machinery
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
The short course provides practicing engineers with a comprehensive review of existing gas bearing technologies including their principle of operation, analysis and experimental verification, comparison amongst other gas ...
On The Leakage and Rotordynamic Force Coefficients of Pump Annular Seals Operating with Air/Oil Mixtures: Measurements and Predictions
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
In the subsea oil and gas industry, multiphase pumps and wet gas compressors add pressure to the process fluid thus enabling long
distance tie back system that eliminates topside facilities such as an oil and gas separation ...
LEAKAGE AND DYNAMIC FORCE COEFFICIENTS FOR A STEPPED LABYRINTH SEAL AND A STEPPED POCKET DAMPER SEAL SUPPLIED WITH WET GAS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Industrial centrifugal compressors use annular gap seals, typically labyrinth type, to restrict process gas leakage from high-pressure regions to low-pressure regions. Currently liquid tolerant compressors enable efficient ...
ANNULAR CLEARANCE GAS SEALS: MODELS AND MEASUREMENTS FOR LEAKAGE, FORCE COEFFICIENTS AND THEIR EFFECT ON ROTOR STABILITY
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Turbomachinery seals are engineered to maintain efficiency and power delivery by minimizing leakage. Seals also appreciably affect the system rotordynamic behavior due to their relative position within a turbomachine. The ...
ON THE INFLUENCE OF LUBRICANT FEEDHOLE SIZE AND END PLATE SEALS’ CLEARANCE ON THE DYNAMIC PERFORMANCE OF INTEGRAL SQUEEZE FILM DAMPERS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
In rotating machinery, squeeze film dampers (SFDs) reduce rotor synchronous response amplitude motions, provide structural isolation and enhance rotordynamic stability. Compared to conventional squirrel cage supported SFDs, ...
Annular Clearance Gas Seals In The 21st Century: A REVIEW OF THE EXPERIMENTAL RECORD ON LEAKAGE AND DYNAMIC FORCE COEFFICIENTS, INCLUDING COMPARISONS OF MODEL PREDICTIONS TO TEST DATA
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Turbomachinery seals are engineered to maintain efficiency and power delivery by minimizing leakage. Seals also appreciably affect the system rotordynamic behavior due to their relative position within a turbomachine. The ...
L12: Effect of Flow Rate on the Performance of a Flooded-Ends Tilting-Pad Journal Bearing Experiments and Predictions
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Rotating machinery relies on engineered tilting-pad journal bearings (TPJB) to provide static load support with minimal drag power losses, relatively low pad temperatures, and ensuring a rotor dynamic stable operation End ...