论文期刊

论文标题    15. Characteristics of Frictional Pressure Drop of Two-Phase Nitrogen Flow in Horizontal Smooth Mini Channels in Diabatic/Adiabatic Conditions
作者    X.Y. Chen, Y. Hou, S.T. Chen, X.F. Liu, X. Zhong*
发表/完成日期    2019-08-29
期刊名称    Applied Thermal Engineering
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论文简介    The two-phase frictional pressure drop of nitrogen under diabatic and adiabatic conditions is investigated experimentally in two horizontal mini channels. The effects of factors in a variety, including the channel diameter, mass flux, heat flux, inlet pressure and vapor quality are examined on the frictional pressure drop and liquid-phase multiplier of the two-phase flow. The two-phase frictional pressure drop predicted by previous correlations from other studies are compared with the experimental results of this study, and the lowest mean absolute deviation is 18.3% for adiabatic conditions and 10.9% for adiabatic conditions. Based on the experimental results of nitrogen flow, two new correlations in the form of the Chisholm-C correlation are developed to predict the two-phase frictional pressure dropby involving the effect of surface tension, and the mean absolute deviation of which is 12.3% and 10.4% for the adiabatic and diabatic conditions respectively. The new correlations are also shown able to well predict the experimental frictional pressure drop of other studies under different experimental conditions.