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| 壁流式蜂窝陶瓷微粒过滤器压力损失公式的建立 | |
| 引用本文： | 赵斌娟,袁寿其,加藤征三,西村顕.壁流式蜂窝陶瓷微粒过滤器压力损失公式的建立[J].农业机械学报,2004,35(6):44-47. |
| 作者姓名： | 赵斌娟 袁寿其 加藤征三 西村顕 |
| 作者单位： | 1. 江苏大学能源与动力工程学院,博士生,212013,镇江市 2. 江苏大学副校长,教授,博士生导师 3. 日本三重大学工学部机械工学科,教授,514-8507;三重县津市上浜町,1515 4. 日本三重大学工学部机械工学科,副教授 |
| 摘 要： | 分析了洁净壁流式蜂窝陶瓷过滤器(DPF)压力损失的机理，包括过滤壁上的透过压力损失、进口收缩压力损失、出口扩散压力损失以及进／出口流道内的摩擦阻力损失，建立了各类压力损失的相应公式及总压力损失公式。并通过数值计算确定了压力损失公式中相关待定系数。得到的压力损失公式能较准确地估算DPF在不同流量下的压力损失值。 |
| 关 键 词： | 微粒过滤器 壁流式 压力损失 摩擦阻力损失 柴油机 |
| 修稿时间： | 2004年1月19日 |
Establishment of the Pressure Drop Equation for Honeycomb Wall-flow Diesel Particulate Filters |
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| Zhao Binjuan,Yuan Shouqi.Establishment of the Pressure Drop Equation for Honeycomb Wall-flow Diesel Particulate Filters[J].Transactions of the Chinese Society of Agricultural Machinery,2004,35(6):44-47. | |
| Authors: | Zhao Binjuan Yuan Shouqi |
| Institution: | Zhao Binjuan Yuan Shouqi (Jiangsu University) Kato Seizo Nishimura Akira(Mie University) |
| Abstract: | The mechanisms of five flow losses contributing to a clean honeycomb wall flow diesel particulate filter (DPF) pressure drop were comprehensively investigated, which were the filtration (porous) wall loss, the inlet contraction loss, the outlet expansion loss, the inlet and outlet channel friction losses. The pressure drop equation was theoretically established for the clean honeycomb wall flow DPF and the numerical calculation is used as an approach to determine the pressure loss coefficients included in this equation. It is expected that the application of the recommended pressure drop equation for DPF will lead to more accurate predictions of the pressure drop of honeycomb wall flow DPF under practical ranges of exhaust flow rate, which is useful for its optimal design. |
| Keywords: | Diesel particulate filter Wall-flow Pressure drop Numerical calculation |
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