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RISEffect of Centrifugal Force of Gas Film on the Load Capacity of Thrust Gas Bearing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A modified Reynolds equation including centrifugal force of gas film was derived, and it was used to study the effect of gas film centrifugal force and associated streamline on the load capacity of both rigid and foil ...
Design Space of Foil Bearings for Closed Loop Supercritical CO2 Power Cycles Based on Three Dimensional Thermohydrodynamic Analyses
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The closedloop Brayton cycle with supercritical CO2 (SCO2) as an operating fluid is an attractive alternative to conventional power cycles due to very high power density. Foil gas bearings using CO2 are the most promising ...
Design of Novel Gas Foil Thrust Bearings and Test Validation in a High-Speed Test Rig
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Small gas foil bearings (FBs) with shaft diameter below 25 mm can find many applications in air compressors for fuel cells, electrical turbo chargers, small unmanned air vehicles, turbo alternators, etc. These small machines ...
Novel Thrust Foil Bearing With Pocket Grooves for Enhanced Static Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The integration of foil bearing technology into high-speed oil-free machines has been slow in progress, in part, due to the low load-carrying capacity of the foil thrust bearing. It is crucial this issue is addressed through ...
Performance Evaluation of Dynamic Model of Compact Heat Exchange Reformer for High Temperature Fuel Cell Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Solid oxide fuel cell (SOFC) systems are the most advanced power generation system with the highest thermal efficiency. The current trend of research on the SOFC systems is focused on multikilowatt scale systems, which ...
Erratum: “Design and Performance Prediction of Hybrid Air Foil Thrust Bearings” [ASME J. Eng. Gas Turbines Power, 2010, 133(4), p. 042501; DOI: 10.1115/1.4002249]
Publisher: The American Society of Mechanical Engineers (ASME)
Static Performance of a Hydrostatic Thrust Foil Bearing for Large Scale Oil-Free Turbomachines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work presents a novel design of a hydrostatic thrust foil bearing (HSTFB), with an outer diameter of 154 mm, along with simulation and test results up to a specific load capacity of 223 kPa (32.3 psi). This bearing ...
Experimental Identification of Force Coefficients of Large Hybrid Air Foil Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Foil bearing technology using air or gas as a lubricant has been around since the mid1960s, and it made significant progress in its reliability, performance, and applications. Even if significant progress has been made to ...
Rotordynamic Performance of a Shaft With Large Overhung Mass Supported by Foil Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work presents the theoretical and experimental rotordynamic evaluations of a rotor–air foil bearing (AFB) system supporting a large overhung mass for high-speed application. The proposed system highlights the compact ...
Scaling Laws for Radial Clearance and Support Structure Stiffness of Radial Foil Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Design and analysis of foil bearings involve consideration to various physical aspects such as fluid pressure, structural deformation, and heat generation due to viscous effects within the bearing. These complex physical ...