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Based on a hybrid flowmeter and a dominant phase identifier, a new system is proposed for oil-water two-phase flow measurement. The hybrid flowmeter consists of an oval gear flowmeter and a Venturi meter. The dominant phase identifier is utilized to overcome the influence of oil fraction on the measurement results. In the practical measurement process, the total volume flowrate and the differential...
A flowrate measurement method for air-water two-phase flow is developed using an Electrical Resistance Tomography (ERT) sensor and a Venturi meter. With the conductance values measured by the ERT sensor, the real-time flow pattern is identified and the voidage is also calculated. The Butterworth correlation is applied to calculate the mass quality from the voidage value, and then six Venturi measurement...
Based on the capacitances obtained by 12-electrode ECT (electrical capacitance tomography) system and the least-squares support vector machine (LS-SVM) technique, a new method is proposed for the on-line voidage measurement of gas-oil two-phase flow. In practical voidage measurement process, the real-time flow pattern of the gas-oil two-phase flow is identified directly from 66 capacitances obtained...
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