...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Sensors Journal, IEEE >Oscillation Frequency$LC$-Based Sensor for Characterizing Two-Phase Flows in Energy Systems
【24h】

Oscillation Frequency$LC$-Based Sensor for Characterizing Two-Phase Flows in Energy Systems

机译：基于振荡频率 $ LC $ 的传感器，用于表征能源系统中的两相流

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The need for two-phase flow measurement in the power generation industry has been significantly increased over the last few years. This is mainly because the reliable measurements of the two-phase flow parameters, such as void fraction, phase velocity, and flow pattern identification, are important for accurate modeling and/or in the operation of energy systems. Although many two-phase flow sensors were recently developed, challenges in measuring two-phase flow characteristics using a simple and inexpensive sensor remain unresolved. Therefore, extensive research efforts that were spent in designing accurate two-phase flow sensor that does not require complex software solving an inverse problem are currently under development worldwide. In this paper, a multichannel, high-resolution capacitance sensor system for two-phase flow void fraction measurements was developed for slightly conductive and non-conductive fluids. Inductance–capacitance ($LC$) metering circuit is designed to relate the change in the measured resonance frequency to the change in capacitance registered by the sensor. The narrow band filtering effect of the$LC$circuit allows for the system to be more resistant to background noise. Three sensor electrode configurations were designed in order to provide more information on the flow behavior in the piping system, including the bubble velocity, flow distribution, and time signal of void fraction for different flow patterns. Both static and dynamic measurements were carried out, and the sensor operation was validated using a high-speed imaging system.
机译：在过去的几年中，发电行业对两相流测量的需求已大大增加。这主要是因为对两相流参数（例如空隙率，相速度和流型识别）的可靠测量对于准确建模和/或在能源系统的运行中很重要。尽管最近开发了许多两相流传感器，但是使用简单且廉价的传感器来测量两相流特性的挑战仍未解决。因此，目前正在全球范围内进行广泛的研究工作，这些工作花费在设计不需要复杂软件来解决反问题的精确两相流量传感器上。在本文中，针对微导电和非导电流体，开发了一种用于两相流空隙率测量的多通道高分辨率电容传感器系统。电感电容（ n <在线公式xmlns：mml = “ http：//www.w3.org/1998/Math/MathML ” xmlns：xlink = “ http://www.w3.org/1999 / xlink “> $ LC $ n）计量电路旨在将测得的谐振频率的变化与传感器记录的电容变化。 n $ LC $ n电路可以使系统对背景噪声具有更高的抵抗力。设计了三种传感器电极配置，以便提供有关管道系统中流动行为的更多信息，包括气泡速度，流量分布和不同流量模式的空隙率时间信号。进行了静态和动态测量，并使用高速成像系统验证了传感器的运行。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号