【摘要】 基于玄武岩纤维的后处理系统是使用玄武岩纤维复合毡对后处理系统进行包裹，从而减少热量散失可提升排气后处理系统性能。根据发动机台架WHSC试验循环，研究了玄武岩纤维保温材料和玻璃纤维保温材料的对比，以及不同厚度玄武岩保温材料与柴油机的匹配特性，结果表明在稳态工况下，玄纤保温性能略优于玻纤，且随着玄武岩材料厚度的不断增加，每增加1 mm厚度，温降平均减少0.95℃,保温性能平均提升4.6%。并开展了基于C-WTVC循环的不同编织封装形式玄武岩纤维与玻璃纤维的排放特性研究。从整车轮毂试验排放数据分析，玄武岩毡管及玻璃纤维毡管整体的排放水平优于玄武岩套管和玄武岩缠绕带管。更多还原

【Abstract】 The post-treatment system based on basalt fiber utilizes this new type of thermal insulation material to wrap the exhaust after-treatment system, thereby reducing heat loss and improving system performance. Based on the engine bench WHSC test cycle, a comparison was made between basalt fiber insulation material and glass fiber insulation material, along with a study on the matching characteristics of basalt insulation materials of different thicknesses with diesel engines. The results show that under steady-state conditions, the thermal insulation performance of basalt fiber is slightly better than that of glass fiber. Furthermore, as the thickness of the basalt material increases, each additional 1 mm in thickness reduces the temperature drop by an average of 0.95 ℃ and improves thermal insulation performance by an average of 4.6%. Additionally, a study on the emission characteristics of basalt fiber and glass fiber with different braiding and encapsulation forms was conducted based on the C-WTVC cycle. Analysis of emission data from whole-vehicle hub tests indicates that the overall emission levels of basalt felt tubing and glass fiber felt tubing are superior to those of basalt casing and basalt wrap tape tubing.更多还原