Research of Characteristics of Gas-liquid Two-phase Pressure Drop in Microreactor
Chemical Institute of Chemical Industry, Xi’an Shiyou University, Xi’an, Shaanxi, China
With the research system of nitrogen and deionized water, this paper researches the pressure drop of gas-liquid two-phase flow in the circular microchannel with an inner diameter which is respectively 0.9mm and 0.5mm, analyzes the effect of microchannel diameter on gas-liquid two-phase frictional pressure drop in the microchannel reactor, and compares with the result of frictional pressure drop and the predicting result of divided-phase flow pattern. The result shows that, the gas-liquid two-phase frictional pressure drop in the microchannel significantly increases with the decreasing microchannel diameter; Lockhart-Martinelli relationship in divided-phase flow pattern can preferably predict the gas-liquid two-phase frictional pressure drop in the microchannel, but the Tabular constant needs to be corrected.
Key words: : microreactor / gas-liquid two-phase flow / pressure drop
© Owned by the authors, published by EDP Sciences, 2015
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