化工进展2013，Vol.32Issue(3)：527-532,6.DOI:10.3969/j.issn.1000-6613.2013.03.006
湍流状态下单组分气液相平衡体系压力的变化
Deviation of system pressure for one-component vapor-liquid phase equilibrium in turbulence
摘要
Abstract
Six pure liquids, namely, water, ethanol, normal propyl alcohol, isopropyl alcohol, acetic acid, and acetone, were selected to be the experimental subjects of this research. Each one-component vapor-liquid equilibrium system was placed in a customized vessel and then rotated at a constant-temperature water bath shaking table. The experiments were conducted at eight different temperatures, from 10℃ to 80℃, with 10℃ intervals, and fourteen different rotating speeds, from 80 r/min to 210 r/min, with 10 r/min intervals. The deviation rate of the dynamic system pressure from the thermodynamic system pressure (R) in turbulence under experimental conditions could reach a maximum of 74.20%. A correlation of R, Reynolds number, and critical temperature was fitted by using experimental data. Based on the study results, a prediction was given that the dynamic statured vapor pressure could be twice of the thermodynamic one, as long as the degree of turbulence is sufficiently high.关键词
单组分气液相平衡/饱和蒸汽压/湍流/对比温度Key words
one-component vapor-liquid phase equilibrium/ saturated vapor pressure/ turbulence/ reduced temperature分类
化学化工引用本文复制引用
张珍禛,姚远,罗会娟,宋俊男,江小波,郭锴..湍流状态下单组分气液相平衡体系压力的变化[J].化工进展,2013,32(3):527-532,6.基金项目
国家973计划(Grant 2009CB219903)、国家自然科学基金(21106176)及中科院校长基金项目(Y15101JY00). （Grant 2009CB219903）
