Towards Ecological Alternatives in Bearing Lubrication
Hydrogen is the cleanest fuel available because its combustion product is water. The internal combustion engine can, in principle and without significant modifications, run on hydrogen to produce mechanical energy. Regarding the technological solution leading to compact engines, a question to ask is...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/9/6/62 |
| _version_ | 1827690226855706624 |
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| author | Bachir Bouchehit Benyebka Bou-Saïd John Tichy |
| author_facet | Bachir Bouchehit Benyebka Bou-Saïd John Tichy |
| author_sort | Bachir Bouchehit |
| collection | DOAJ |
| description | Hydrogen is the cleanest fuel available because its combustion product is water. The internal combustion engine can, in principle and without significant modifications, run on hydrogen to produce mechanical energy. Regarding the technological solution leading to compact engines, a question to ask is the following: Can combustion engine systems be lubricated with hydrogen? In general, since many applications such as in turbomachines, is it possible to use the surrounding gas as a lubricant? In this paper, journal bearings global parameters are calculated and compared for steady state and dynamic conditions for different gas constituents such as air, pentafluoropropane, helium and hydrogen. Such a bearing may be promising as an ecological alternative to liquid lubrication. |
| first_indexed | 2024-03-10T10:35:23Z |
| format | Article |
| id | doaj.art-a2b6e782a30e403fa9711c1b070777f0 |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-10T10:35:23Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-a2b6e782a30e403fa9711c1b070777f02023-11-21T23:22:27ZengMDPI AGLubricants2075-44422021-06-01966210.3390/lubricants9060062Towards Ecological Alternatives in Bearing LubricationBachir Bouchehit0Benyebka Bou-Saïd1John Tichy2LGMM Laboratory, Faculty of Technology, 20 août 1955 University-Skikda, Skikda 21000, AlgeriaUniversité de Lyon, CNRS INSA-Lyon, LaMCoS, UMR5259, F-69621 Villeurbanne, FranceDepartment of Mechanical, Aerospace, and Nuclear Engineering Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USAHydrogen is the cleanest fuel available because its combustion product is water. The internal combustion engine can, in principle and without significant modifications, run on hydrogen to produce mechanical energy. Regarding the technological solution leading to compact engines, a question to ask is the following: Can combustion engine systems be lubricated with hydrogen? In general, since many applications such as in turbomachines, is it possible to use the surrounding gas as a lubricant? In this paper, journal bearings global parameters are calculated and compared for steady state and dynamic conditions for different gas constituents such as air, pentafluoropropane, helium and hydrogen. Such a bearing may be promising as an ecological alternative to liquid lubrication.https://www.mdpi.com/2075-4442/9/6/62thermal hydrodynamic lubricationgas bearingcompressiblevaporturbulent2 phase flow |
| spellingShingle | Bachir Bouchehit Benyebka Bou-Saïd John Tichy Towards Ecological Alternatives in Bearing Lubrication Lubricants thermal hydrodynamic lubrication gas bearing compressible vapor turbulent 2 phase flow |
| title | Towards Ecological Alternatives in Bearing Lubrication |
| title_full | Towards Ecological Alternatives in Bearing Lubrication |
| title_fullStr | Towards Ecological Alternatives in Bearing Lubrication |
| title_full_unstemmed | Towards Ecological Alternatives in Bearing Lubrication |
| title_short | Towards Ecological Alternatives in Bearing Lubrication |
| title_sort | towards ecological alternatives in bearing lubrication |
| topic | thermal hydrodynamic lubrication gas bearing compressible vapor turbulent 2 phase flow |
| url | https://www.mdpi.com/2075-4442/9/6/62 |
| work_keys_str_mv | AT bachirbouchehit towardsecologicalalternativesinbearinglubrication AT benyebkabousaid towardsecologicalalternativesinbearinglubrication AT johntichy towardsecologicalalternativesinbearinglubrication |