| 表面活性剂添加对气液两相流摩阻压降特性的影响 |
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| 引用本文： | 夏国栋,王敏,鹿院卫,马重芳,麦维斯. 表面活性剂添加对气液两相流摩阻压降特性的影响[J]. 化工学报, 2004, 55(5): 727-731 |
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| 作者姓名： | 夏国栋 王敏 鹿院卫 马重芳 麦维斯 |
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| 作者单位： | 北京工业大学环境与能源工程学院,北京,100022;汉诺威大学过程工程研究所,汉诺威,30167,德国 |
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| 基金项目： | 北京市科技新星项目 (No 95 4810 80 0 )，北京市教委科技发展计划项目 (No KM 2 0 0 410 0 0 5 0 0 8)资助 |
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| 摘 要： | 研究了表面活性剂添加对水平管内气液两相流摩阻压降特性的影响.实验中选用了环境友好的纯度为95%的十二烷基硫酸钠(SDS)作为减阻添加剂，浓度为100 mg•kg-1.结果表明阻力减小率与流型有关，分层流型的阻力减小率可达83.3%、塞状流型和弹状流型的阻力减小率可达83.2%、环状流型的阻力减小率可达31.2%.表面活性剂可以通过改变液体物性和改变流型两个方面来影响气液两相流摩擦压降.
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| 关 键 词： | 减阻 表面活性剂 气液两相流 |
| 文章编号： | 0438-1157(2004)05-0727-05 |
| 收稿时间： | 2003-01-22 |
| 修稿时间： | 2003-5-12 |
INFLUENCES OF SURFACTANT ON FRICTIONAL PRESSURE DROP IN GAS-LIQUID FLOW |
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| XIA Guodong,WANG Min,LU Yuanwei,MA Chongfang,MEWES Dirk. INFLUENCES OF SURFACTANT ON FRICTIONAL PRESSURE DROP IN GAS-LIQUID FLOW[J]. Journal of Chemical Industry and Engineering(China), 2004, 55(5): 727-731 |
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| Authors: | XIA Guodong WANG Min LU Yuanwei MA Chongfang MEWES Dirk |
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| Abstract: | The influences of surfactant on the pressure drop in horizontal two-phase flow was investigated experimentally. Air/water and air/100 mg•kg-1 sodium dodecyl sulphate (with 95% purity grade) aqueous solution were used as working fluids. The results presented a demonstration that the drag reductions depended on flow regimes. Drag reductions up to 83.3% for stratified flow, 83.2% for plug and slug flows and 31.2% for annular flow were observed in the experiment. The drag reduction was caused either by adding the surfactant itself or by the shift of flow regime due to the addition of surfactant. |
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| Keywords: | drag reduction surfactant gas-liquid two-phase flow |
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