A new flow meter has been proposed to measure liquid mass flow rate in a two-phase system. Irrespective of the input flow, the proposed system transforms incoming stream into laminar stratified flow. This configuration offers a promising avenue for assessing liquid flow rates in a two-phase system by leveraging measurements of liquid column height. Extensive performance assessments have been conducted for different vapour and liquid flows. Since the fluid properties are taken into consideration for designing the system, the temperature dependence on the performance of the flow meter also has been studied. The outcome of these studies has yielded a robust correlation between the actual liquid flow rate and the value deduced from the observed liquid column height. The correlation developed between the actual liquid flow rate and that determined from the height of fluid was accurate with an error of 3.8 %. It is also found that this flow meter is capable enough to determine the changes in flow conditions with temperature and would provide flow measurements within an error of 4 %. This novel two-phase flow meter not only advances the precision of liquid mass flow rate measurements but also demonstrates its adaptability in accommodating changing flow conditions, particularly those driven by temperature dynamics. The findings presented herein underscore the potential of this innovative flow meter as a reliable tool for accurate flow rate determination in diverse industrial applications such as cryogenics, superconductivity, etc.

中文翻译：

---

两相并联通道电容式液体流量计实验

提出了一种新的流量计来测量两相系统中的液体质量流量。无论输入流如何，所提出的系统都会将输入流转换为层流。这种配置为利用液柱高度的测量来评估两相系统中的液体流速提供了一种有前途的途径。对不同的蒸气和液体流量进行了广泛的性能评估。由于设计系统时考虑了流体特性，因此还研究了温度对流量计性能的依赖性。这些研究的结果在实际液体流速和从观察到的液柱高度推导出的值之间产生了强有力的相关性。实际液体流速与从流体高度确定的流速之间建立的相关性是准确的，误差为 3.8%。我们还发现，该流量计足以确定流量条件随温度的变化，并提供误差在 4% 以内的流量测量。这种新颖的两相流量计不仅提高了液体质量流量测量的精度，而且还展示了其适应不断变化的流动条件的适应性，特别是由温度动态驱动的流动条件。本文提出的研究结果强调了这种创新流量计作为在低温、超导等多种工业应用中精确测定流量的可靠工具的潜力。