文献类型：期刊文献

英文题名：Enhancing Heat Transfer of Drag-Reducing Surfactant Solution by an HEV Static Mixer with Low Pressure Drop

作者：Shi, Haifeng[1];Wang, Yi[2];Ge, Wu[3];Fang, Bo[4];Huggins, Jacob T.[1];Huber, Thaddaus R.[1];Zakin, Jacques L.[1]

机构：[1]Ohio State Univ, Dept Chem & Biomol Engn, Columbus, OH 43210 USA;[2]China Univ Petr, Beijing Key Lab Urban Oil & Gas Distribut Technol, Beijing 102249, Peoples R China;[3]Kraft Foods Global Res, Glenview, IL 60025 USA;[4]E China Univ Sci & Technol, Res Ctr Chem Engn, Shanghai 200237, Peoples R China

年份：2011

外文期刊名：ADVANCES IN MECHANICAL ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000303517900001)】；

语种：英文

摘要：A novel high-efficiency vortex (HEV) static mixer was used to locally enhance the heat transfer coefficient of a drag-reducing fluid, Ethoquad O/12 (EO12) (3 mM) with sodium salicylate (NaSal) (5 mM). Significant enhancement of heat transfer coefficients was observed. The Nusselt numbers were three to five times those of normal drag-reducing flow without mixer and were close to those of water at high Reynolds number with only modest energy penalty. In contrast, a Helix static mixer increased Nusselt number slightly with very high pressure loss. A performance number was used for comparisons among the HEV static mixer, the Helix static mixer, and water without mixer. The HEV static mixer had a performance number comparable to that of water. The enhanced heat transfer by the HEV static mixer resulted from streamwise vortices generated by the inclined tabs, which increased the convective heat transfer in the radial direction.