Wet-Gas Flow Modeling for the Straight Section of Throat-Extended Venturi Meter

被引：26
|
作者：
Xu, Lijun [2 ]
Zhou, Wanlu [2 ]
Li, Xiaomin [1 ]
Wang, Minghao [2 ]
机构：
[1] Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China
[2] Beihang Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100191, Peoples R China
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2011年 / 60卷 / 06期
关键词：
Fitting error; flow modeling; separated flow; Venturi meter; wet-gas metering; 2-PHASE FLOW;
D O I：
10.1109/TIM.2011.2117190
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, the wet-gas flow modeling for the straight section of a throat-extended Venturi meter was studied. Based on the separated-flow theory, a flow model was presented. The relationship between the fluctuating properties of the differential pressure (DP) over the straight section and the quality of the wet-gas flow was also studied, and a flow model of the fluctuation of the DP for wet-gas metering was established. Experiments were carried out within a system pressure range of 0.26-0.86 MPa, a gas volumetric flowrate range of 80-120 m(3)/h, a water volumetric flowrate range of 1.3-4.5 m(3)/h, and a quality range of 0.07-0.36. It was obtained that the root mean square of the relative errors of the DP over the straight section calculated from the separated-flow-theory-based model was 8.82% and that of the quality calculated from the fluctuating-property-related model was 8.77%.
引用
收藏
页码：2080 / 2087
页数：8
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