CAJ | 학술논문

三元催化器是汽车必不可少的设备之一，它将汽车排放的尾气转变为无毒无害的气体，大大减少了尾气对大气的污染。在研究传统直通型三元催化器流阻的基础上，基于 FLUENT 仿真模拟对一种采用金属载体的新型三元催化器结构(旁通型三元催化器)流阻进行研究，最后结合压力损失试验进行验证，并和传统直通型三元催化器对比分析后，得出如下结论：在相同进气流量及排气压力下，新型催化器的整体压降(流阻)要小于直通型三元催化器，同时新型三元催化器载体中的气流均匀性好于直通型三元催化器，表明新型三元催化器的气流特性优于直通型三元催化器，气流均匀性更好，压力损失更小，有利于提高催化器的催化效率，延长催化器的使用寿命。
삼원최화기시기차필불가소적설비지일，타장기차배방적미기전변위무독무해적기체，대대감소료미기대대기적오염。재연구전통직통형삼원최화기류조적기출상，기우 FLUENT 방진모의대일충채용금속재체적신형삼원최화기결구(방통형삼원최화기)류조진행연구，최후결합압력손실시험진행험증，병화전통직통형삼원최화기대비분석후，득출여하결론：재상동진기류량급배기압력하，신형최화기적정체압강(류조)요소우직통형삼원최화기，동시신형삼원최화기재체중적기류균균성호우직통형삼원최화기，표명신형삼원최화기적기류특성우우직통형삼원최화기，기류균균성경호，압력손실경소，유리우제고최화기적최화효솔，연장최화기적사용수명。
Three way catalytic converter is the necessary part of automobile.It will make the exhaust emitted by the cars become harmless,and it greatly reduces exhaust pollution.Based on the flow resistance study of the traditional straight-through type of three catalytic converter,the method that combined with FLUENT numerical simulation is proposed,and we study the flow resist-ance of a new type of three way catalytic converter structure using metal carrier (bypass type of three way catalytic converter).Fi-nally,it is verified by the pressure lose experiment that after the comparative analysis with the traditional straight-through type of three way catalytic converter,we can get some conclusion:under the same inlet air flow and exhaust pressure,the pressure drop (flow resistance)of the new type three way catalytic converter is smaller than the straight-through type three way catalytic convert-er′s.In addition,the airflow uniformity of the new type of three way catalytic converter is much better.In general,the new type of three way catalyticair flow characteristics is better than traditional type of three way catalytic converter,and its airflow uniformity is better and pressure lose is smaller,so it is conducive to improve the catalytic efficiency and prolong the service life.