Monitoring liquid displacement of model and industrial fluids in pipes by in-line ultrasonic rheometry
Monitoring liquid displacement of model and industrial fluids in pipes by in-line ultrasonic rheometry
复制标题
通过在线超声波流变仪监测管道中模型和工业流体的液体位移
DOI：
10.1016/j.jfoodeng.2010.03.011
复制
发表时间：
2010
影响因子：
5.5
通讯作者：
C. Trägårdh
中科院分区：
文献类型：
--
作者：
J. Wiklund;M. Stading;C. Trägårdh
基于超声多普勒流速剖面（UVP）和压差（PD）技术的组合，采用在线流变仪的概念成功地研究了管道中模型流体和工业流体的液体位移。当一种流体被另一种具有不同流变特性的流体驱替时，监测速度剖面发展、相关混合区和流变性的实时变化。四套模型系统，都很好地描述了幂律模型和相关的食品工业，被用来充分涵盖不同类别的流体。此外，两组具有相似流动特性的工业生产的食品被用来测试开发的UVP-PD方法的工业适用性和局限性。结果表明，在线UVP-PD流变仪的概念是一个有吸引力的多点实时过程监测和控制的非牛顿流体的方法。
Liquid displacement of model and industrial fluids in pipes was successfully investigated using the in-line rheometer concept based on the combination of Ultrasound Doppler Velocity Profiling (UVP) and the pressure difference (PD) technique. The velocity profile development, related mixing zone and real-time changes in rheology were monitored when one fluid was displaced by another with different rheological properties. Four sets of model systems, all well described by the power law model and relevant for the food industry, were used to adequately cover different classes of fluids. In addition, two sets of industrially produced foods with similar flow characteristics were used to test the industrial applicability and limitations of the UVP–PD methodology developed. The results demonstrate that the in-line UVP–PD rheometer concept is an attractive multi-point method for real-time process monitoring and control of non-Newtonian fluids.