Design of a high-pressure viscosity-measurement system using two pressure balances
| Autor: | Yoshitaka Fujita, Hiroaki Kajikawa, Hideaki Iizumi, Kazunori Ide, Tomoya Muramoto |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Capillary action Applied Mathematics Mechanics Differential pressure 01 natural sciences law.invention Volumetric flow rate Viscosity measurement 010309 optics Piston Viscosity Linear relationship Temperature and pressure law 0103 physical sciences Instrumentation Engineering (miscellaneous) |
| Zdroj: | Measurement Science and Technology. 31:115302 |
| ISSN: | 1361-6501 0957-0233 |
| Popis: | In this paper, a new high-pressure viscosity measurement system using a capillary method is reported. In this system, two pressure balances are used to generate stable pressure and flow field in the capillary. The volumetric flow rate was measured by calculating the change in the piston fall rate. To check the effectiveness of the method, the viscosity of bis(2-ethylhexyl) sebacate was measured at pressures of up to 200 MPa. Differential pressure and volumetric flow rate had a linear relationship at all temperature and pressure conditions, indicating that the Hagen–Poiseuille law can be applied in this method. The viscosity–pressure dependence is in agreement with other published reports. Thus, we confirmed that the newly developed high-pressure viscosity measurement system can accurately evaluate the pressure dependence of viscosity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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