提出了一种适用于高温高压条件下的在线毛细管黏度测量方法,设计并搭建了相应的实验系统。通过与高温高压循环系统连接,可实现压力(约30MPa)、温度(约773K)范围内的流体黏度在线测量。利用该实验系统,在线测量了压力分别为12、23、25、28MPa下,温度303.46-383.28K范围内纯水的动力黏度。较之NIST文献数据,本文实验数据的相对偏差绝对平均值为2.01%。
A online capillary method which can be used to measure the viscosity of fluid at high temperature and pressure is provided, and the measurement system which can measure the viscosity of fluid at temperature and pressure up to 773 K and 30 MPa by connected with high temperature and pressure circulation system was designed and constructed. Viscosities of pure water have been measured at four isobars(12, 23, 25, 28 MPa) and temperatures between 303.46 K and 383.28 K. The absolute average of relative deviations between the measurement results and the data from NIST database is 2.01%, which show the accuracy and reliability of the experimental system.
参考文献
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[2] | Deguchi S;Ghosh SK;Alargova RG;Tsujii K .Viscosity measurements of water at high temperatures and pressures using dynamic light scattering[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2006(37):18358-18362. |
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