High Pressure Rheology of Lubricants (Part 4)
The physical properties of lubricant under high temperature and high pressure include high pressure viscosity, high pressure density, bulk modulus, coefficient of thermal expansion, etc. It is important to know these high pressure physical properties in machine design. However, almost no discussion...
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Japanese Society of Tribologists
2024-07-01
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| Series: | Tribology Online |
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| Online Access: | https://www.jstage.jst.go.jp/article/trol/19/5/19_413/_pdf/-char/en |
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| _version_ | 1846107917941473280 |
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| author | Masato Kaneko |
| author_facet | Masato Kaneko |
| author_sort | Masato Kaneko |
| collection | DOAJ |
| description | The physical properties of lubricant under high temperature and high pressure include high pressure viscosity, high pressure density, bulk modulus, coefficient of thermal expansion, etc. It is important to know these high pressure physical properties in machine design. However, almost no discussion has been made on the liquid state equation, which is the basis of the high pressure physical properties of these lubricants. Therefore, in this report, using the high pressure density measuring device, the volume was obtained from the measurement of the density at each temperature and pressure, and the PVT relational equation was derived. Further, Vt=0 (absolute experiments, and it was found that this equation could be utilized as a liquid state equation of high utility. In addition, we can estimate the high pressure density which is one of the high pressure physical properties of the lubricant by this liquid state equation. |
| format | Article |
| id | doaj-art-36a0d1cc92fa4b99a37d3d75550abccd |
| institution | Kabale University |
| issn | 1881-2198 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Japanese Society of Tribologists |
| record_format | Article |
| series | Tribology Online |
| spelling | doaj-art-36a0d1cc92fa4b99a37d3d75550abccd2024-12-26T08:18:29ZengJapanese Society of TribologistsTribology Online1881-21982024-07-0119541342710.2474/trol.19.413trolHigh Pressure Rheology of Lubricants (Part 4)Masato Kaneko0Process Development Group, Productive Technology Center, Lubricant Department 1, Idemitsu Kosan Co., Ltd.The physical properties of lubricant under high temperature and high pressure include high pressure viscosity, high pressure density, bulk modulus, coefficient of thermal expansion, etc. It is important to know these high pressure physical properties in machine design. However, almost no discussion has been made on the liquid state equation, which is the basis of the high pressure physical properties of these lubricants. Therefore, in this report, using the high pressure density measuring device, the volume was obtained from the measurement of the density at each temperature and pressure, and the PVT relational equation was derived. Further, Vt=0 (absolute experiments, and it was found that this equation could be utilized as a liquid state equation of high utility. In addition, we can estimate the high pressure density which is one of the high pressure physical properties of the lubricant by this liquid state equation.https://www.jstage.jst.go.jp/article/trol/19/5/19_413/_pdf/-char/enlubricantpressurevolumetemperatureliquid constantequation of statehigh pressure densityvan der waals equation |
| spellingShingle | Masato Kaneko High Pressure Rheology of Lubricants (Part 4) Tribology Online lubricant pressure volume temperature liquid constant equation of state high pressure density van der waals equation |
| title | High Pressure Rheology of Lubricants (Part 4) |
| title_full | High Pressure Rheology of Lubricants (Part 4) |
| title_fullStr | High Pressure Rheology of Lubricants (Part 4) |
| title_full_unstemmed | High Pressure Rheology of Lubricants (Part 4) |
| title_short | High Pressure Rheology of Lubricants (Part 4) |
| title_sort | high pressure rheology of lubricants part 4 |
| topic | lubricant pressure volume temperature liquid constant equation of state high pressure density van der waals equation |
| url | https://www.jstage.jst.go.jp/article/trol/19/5/19_413/_pdf/-char/en |
| work_keys_str_mv | AT masatokaneko highpressurerheologyoflubricantspart4 |