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Proceedings Papers

Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen

Chaeyeon Baek, Hyunsung Jung, Junwon Heo, Kyuman Kim, Keun Ryu
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A029, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129557
https://doi.org/10.1115/GT2024-129557
.... A simple static load test rig is used to measure the flow rate, temperature, and stiffnesses of the test bearings while supplying compressed air, water, and liquid nitrogen with increasing static loads. The performance of these bearings is compared with counterparts produced via conventional subtractive...
View Paper titled, Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With <span class="search-highlight">Air</span>, Water, and Liquid Nitrogen
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Topics: Bearings, Design, Hydrostatics, Journal bearings, Lasers, Manufacturing, Nitrogen, Stress, Testing, Turbomachinery
Proceedings Papers

Dynamic Response of a Rotor Supported on Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions

Howon Yi, Kyuman Kim, Hyunsung Jung, Keun Ryu
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A028, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129423
https://doi.org/10.1115/GT2024-129423
... with a bearing length to bearing diameter ratio of approximately 0.42 and a bearing radial clearance to rotor radius ratio of around 0.0017. The bearings are tested with air, water, and liquid nitrogen, serving as surrogate test fluids for common propellants in liquid rocket engines. Rotor run-up and speed coast...
View Paper titled, Dynamic Response of a Rotor Supported on Hybrid Bearings in <span class="search-highlight">Air</span>, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions
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Topics: Bearings, Dynamic response, Hydrostatics, Journal bearings, Nitrogen, Rotors, Water
Proceedings Papers

On the Performance of Hydrostatic Journal Bearings in Air, Water, and Liquid Nitrogen: Measurements and Predictions

Hyunsung Jung, Kyuman Kim, Keun Ryu
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A036, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104040
https://doi.org/10.1115/GT2023-104040
... liquids. The current work measures static load characteristics of hydrostatic journal bearings in air (25°C), water (from 25°C to 70°C), and liquid nitrogen (−197°C). Air, water, and liquid nitrogen are used as test fluids for the test bearing to evaluate the effects of fluid properties and temperatures...
View Paper titled, On the Performance of Hydrostatic Journal Bearings in <span class="search-highlight">Air</span>, Water, and Liquid Nitrogen: Measurements and Predictions
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Topics: Bearings, Hydrostatics, Journal bearings, Nitrogen, Stress, Water
Proceedings Papers

Salt in the Marine Environment and the Creation of a Standard Input for Gas Turbine Air Intake Filtration Systems

Peter T. McGuigan
Proc. ASME. GT2004, Volume 7: Turbo Expo 2004, 767-775, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53113
https://doi.org/10.1115/GT2004-53113
... Proceedings of ASME Turbo Expo 2004 Power for Land, Sea & Air June 14-17, 2004, Vienna, Austria an re ai de m th dr de co pe co fil of re be co fit fo Proceedings of ASME Turbo Expo 2004 Power for Land, Sea, and Air June 14-17, 2004, Vienna, Austr a1 Copyright © 2004 by ASME d, given time, can...
View Paper titled, Salt in the Marine Environment and the Creation of a Standard Input for Gas Turbine <span class="search-highlight">Air</span> Intake Filtration Systems
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Topics: Filtration, Gas turbines
Proceedings Papers

Internal Air Systems Experimental Rig Best Practice

Peter Childs, Klaus Dullenkopf, Dieter Bohn
Proc. ASME. GT2006, Volume 3: Heat Transfer, Parts A and B, 1333-1343, May 8–11, 2006
Publisher: American Society of Mechanical Engineers
Paper No: GT2006-90215
https://doi.org/10.1115/GT2006-90215
... 11 09 2008 This paper reports best practice principles for experimental rig design and operation arising from a European Commision funded programme of research on internal air systems. The Internal Cooling Air Systems for Gas Turbines 2 (ICAS-GT2) research programme, ran from April...
View Paper titled, Internal <span class="search-highlight">Air</span> Systems Experimental Rig Best Practice
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Topics: Cavities, Compressors, Cooling, Design, Disks, Engines, Gas turbines, Heat transfer, High pressure (Physics), Instrumentation