| Investigation of oil-air two-phase mass flow rate measurement using Venturi and void fraction sensor |
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| 作者姓名： | 张宏建 岳伟挺 黄志尧 |
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| 作者单位： | Institute of Automation Instrumentation，Department of Control Science and Engineering，Zhejiang University，Hangzhou 310027，China，Institute of Automation Instrumentation，Department of Control Science and Engineering，Zhejiang University，Hangzhou 310027，China，Institute of Automation Instrumentation，Department of Control Science and Engineering，Zhejiang University，Hangzhou 310027，China |
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| 摘 要： | INTRODUCTION Accurate measurement of multiphase fluids flow rates in the petroleum industry is of great importance. The most reliable measurement technique for multi-phase flow is separating the mixture and using con-ventional devices for measuring single-phase flow. However, in many cases the separation is not practical from both technical and economical points of view. An alternative solution is the multiphase flow me-tering system, usually consisting of a combination of devices for ph…
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| 关 键 词： | 气油双相流程 文丘里管 空间片段 流程体 电子容积摄影 |
| 收稿时间： | 10 February 2004 |
| 修稿时间： | 19 June 2004 |
Investigation of oil-air two-phase mass flow rate measurement using Venturi and void fraction sensor |
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| Zhang Hong-jian,Yue Wei-ting,Huang Zhi-yao.Investigation of oil-air two-phase mass flow rate measurement using Venturi and void fraction sensor[J].Journal of Zhejiang University Science,2005,6(6):601-606. |
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| Authors: | Zhang Hong-jian Yue Wei-ting Huang Zhi-yao |
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| Institution: | (1) Institute of Automation Instrumentation, Department of Control Science and Engineering, Zhejiang University, 310027 Hangzhou, China |
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| Abstract: | Oil-air two-phase flow measurement was investigated with a Venturi and void fraction meters in this work. This paper proposes a new flow rate measurement correlation in which the effect of the velocity ratio between gas and liquid was considered.With the pressure drop across the Venturi and the void fraction that was measured by electrical capacitance tomography apparatus,both mixture flow rate and oil flow rate could be obtained by the correlation. Experiments included bubble-, slug-, wave and annular flow with the void fraction ranging from 15% to 83%, the oil flow rate ranging from 0.97 kg/s to 1.78 kg/s, the gas flow rate ranging up to 0.018 kg/s and quality ranging nearly up to 2.0%. The root-mean-square errors of mixture mass flow rate and that ofoil mass flow rate were less than 5%. Furthermore, coefficients of the correlation were modified based on flow regimes, with the results showing reduced root-mean-square errors. |
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| Keywords: | Oil-air two-phase flow rate Venturi Void fraction Flow regime Electrical capacitance tomography |
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