Abstract
A new method for the flowrate measurement of gas-liquid two-phase flow is proposed. A multicircle flowmeter is designed based on the measurement principle of the conventional loop flowmeter. Four differential-pressure signals are obtained from the multicircle sensor at different positions. Multiparameters of the two-phase flow are obtained. The total flowrate measurement models of the two-phase flow are established using the average values of the differential-pressure signals. The volume fraction is estimated through the static and the dynamic differential-pressure analyses. The measurement of the liquid and gas flowrates is realized by association with the volume fraction. Experimental results show that the measurement accuracy supports the proposed methods.
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