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- Title
Design and Loading Characteristics Analysis of Aerostatic Bearings for Radial Inflow Turbogenerator.
- Authors
WU Tan; CAI Shuting; GAO Xiaolei; GUO Baoguo; ZHANG Lijun
- Abstract
In order to improve the load carrying capacity and stiffness of the aerostatic bearings of the radial inflow turbogenerator for the organic Rankine cycle (ORC) system, the aerostatic bearings with R245fa as the lubricating medium was designed by gauge pressure ratio method, and the effects of rotor eccentricity, orifice size and inlet pressure on the load carrying capacity and stiffness of the aerostatic bearings were analyzed.The results show that the bearing load capacity and stiffness increase with the increase of speeds under the same air supply pressures. At the same speed,the load capacity and stiffness of the bearing at the air supply pressure of 0.7 MPa is slightly higher than those at other air supply pressures. The greater the eccentricity of the aerostatic bearings, the greater the load carrying capacity. The load carrying capacity and stiffness of the aerostatic bearings increases with the increase of rotational speeds under the same air supply hole diameter. The larger the air supply hole diameters, the greater the bearing capacity and stiffness of the aerostatic bearings.
- Subjects
AIR pressure; RANKINE cycle; AIRDROP; PRESSURE gages; ECCENTRICS (Machinery)
- Publication
Lubrication Engineering (0254-0150), 2024, Vol 49, Issue 6, p145
- ISSN
0254-0150
- Publication type
Article
- DOI
10.3969/j.issn.0254-0150.2024.06.018