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

连续和非连续的精确动态测量 多相流体流动系统的组件是信号感兴趣的 应用于化工和能源行业。 直到现在， 已经进行了多次尝试，以准确评估目前的阶段 在迄今为止几乎没有工艺的这种液体系统中。 大部分 这些利用电容或电介质类型的早期尝试 探头是回避和受到污染，或 在此期间的某个时候， 测量. 这一建议解决了这个问题，通过非- 有创超声技术 建议的研究将集中于发展一个 用于定量监测分散相分数的探针 油-水分散体。 这项技术是基于 超声波信号通过流动的两个通道的时间 液相系统 变量将是有效的 液滴尺寸，壁厚和几何形状，壁材料，流体 组成、温度、压力和信号路径长度。 的 这些和其他变量的影响将在一个广泛的框架下评估。 流量条件范围。 PI似乎很有资格 这项工作及其设施似乎是足够的。

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.