An Ultrasonic Device for the Phase Fraction Measurement in Liquid-Liquid Dispersions

多相流体流动系统中连续和非连续组分的准确动态测量对于化工过程和能源行业具有重要意义。到目前为止，已经进行了许多尝试，以准确地评估这种液体体系中存在的相，到目前为止几乎没有什么过程。这些早期尝试中的大多数使用电容型或介电型探头，这些探头在测量期间的某个时间是闪避的并且容易受到污垢或以其他方式使AT不起作用。这项建议通过一种非侵入性的超声波技术解决了这个问题。拟议的研究将侧重于开发一种用于定量监测油水分散体分散相分数的探头的可行性。该技术基于超声信号通过流动的两相液体系统的时间。这些变量将是有效液滴大小、壁厚和几何形状、壁材、流体组成、温度、压力和信号路径长度。这些变量和其他变量的影响将在广泛的流动条件下进行评估。PI似乎很有资格从事这项工作，他们的设施似乎也很充足。

Accurate dynamic measurement of the contiguous and non-contiguous components of multiphase fluid flow systems is of signal interest to the chemical process and energy industries. Until now these have been many attempts to accurately assess the phases present in such liquid systems with little processes to date. Most of these early attempts to utilize capacitance or dielectric type probes which were evasive and were subject to fouling or otherwise rendered inoperative ats some time during the period of measurement. This proposal addresses the problem by a non- invasive ultrasonic technique. The proposed study will focus on the feasibility of developing a probe for monitoring quantitatively the dispersed phase fraction of an oil-water dispersion. This technique is based upon the time of passage of an ultrasonic signal through a flowing two phase liquid system. The variables will be the effective droplet size, wall thickness and geometry, wall material, fluid composition, temperature, pressure, and signal pathlength. The impact of these and other variables will be assessed under a wide range of flow conditions. The PI's appear well qualified for this work and their facilities appear to be adequate.