An Analytical Study of Thermophoretic Particulate Deposition in Turbulent Pipe Flows

被引:17
作者
Abarham, Mehdi
Hoard, John W.
Assanis, Dennis [1 ]
Styles, Dan [2 ]
Sluder, C. Scott [3 ]
Storey, John M. E. [3 ]
机构
[1] Univ Michigan, Phoenix Mem Michigan Energy Inst, WE Lay Automot Lab 2045, Dept Mech Engn, Ann Arbor, MI 48109 USA
[2] Ford Motor Co, Res & Adv Engn, Dearborn, MI 48121 USA
[3] Oak Ridge Natl Lab, Fuels Engines & Emiss Res Lab, Oak Ridge, TN USA
关键词
PARTICLE DEPOSITION; THERMAL FORCE; TUBE; GAS;
D O I
10.1080/02786826.2010.491841
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The presence of a cold surface in non-isothermal pipe flows conveying submicron particles causes thermophoretic particulate deposition. In this study, an analytical method is developed to estimate thermophoretic particulate deposition efficiency and its effect on overall heat transfer coefficient of pipe flows in transition and turbulent flow regimes. The proposed analytical solution has been validated against experiments conducted at Oak Ridge National Laboratory. Exhaust gas carrying submicron soot particles was passed through pipes with a constant wall temperature and various designed boundary conditions to correlate transition and turbulent flow regimes. Prediction of the reduction in heat transfer coefficient and particulate mass deposited has been compared with experiments. The results of the analytical method are in a reasonably good agreement with experiments.
引用
收藏
页码:785 / 795
页数:11
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