质量流量计
重复性
涡流
体积流量
信号(编程语言)
流量测量
机械
质量流量
流量(数学)
质量流
控制理论(社会学)
干扰(通信)
声学
准确度和精密度
旋涡脱落
小波
工程类
数学
物理
计算机科学
电气工程
湍流
统计
雷诺数
人工智能
频道(广播)
控制(管理)
程序设计语言
作者
Luyuan Fang,Yueyuan Liu,Meng Zheng,Xu Liu,Kang Lan,Fan Wang,Xiaoli Yan
出处
期刊:Energy
[Elsevier]
日期:2023-11-01
卷期号:283: 129155-129155
标识
DOI:10.1016/j.energy.2023.129155
摘要
Accurate mass flow rate measurement of fluid is one of the key technologies to ensure product quality and utilization of energy resources. However, the accuracy of traditional combined measuring devices is limited. In this paper, a new type of velocity averaging tube vortex flow sensor (VATV) is designed, and the mass flow rate measurement model is proposed and analyzed to achieve the high precision measurement of mass flow rate. The size, shape and structure of the VATV are designed in this study and there are no moving parts inside the integrated VATV. The method of double differential pressure is proposed to achieve the measurement of the average differential pressure signal and differential pressure fluctuation signal. Then, the method of Empirical Wavelet Transform (EWT) is used to extract the vortex shedding frequency from the differential pressure fluctuation signal. It indicated that the proposed VATV achieves an accuracy of ±0.50%, and the repeatability is also lower than 0.07%. A remarkable improvement of accuracy is achieved compared to the original combined measurement devices. The proposed sensor shows good prospect for the detection of gas-liquid two-phase flow such as wet stream due to the feature of strong anti-interference, high stability and reliability.
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