掺烧布朗气对轻型车加速过程排放的影响  

Effect of premixed Brown gas on emission under accelerating operation

作　　者：王忠[1] 王飞[1] 姚康 刘帅[1] 赵洋[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013 [2]南京蓝天氢能科技股份有限公司,江苏南京210012

出　　处：《江苏大学学报（自然科学版）》2015年第1期1-5,共5页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51376083);江苏省2012年研究生创新计划项目(CXZZ12_0676);江苏高校优势学科建设工程项目(PAPD);江苏省2013年度普通高校研究生科研创新计划项目(CXZZ13_0672)

摘　　要：考虑到布朗气具有内爆及催化等特性,以柴油机轻型车为研究对象,将布朗气引入柴油机进气总管,参与缸内燃烧,以研究布朗气对轻型车加速过程中排放性能的影响.在转毂试验台上,测量了掺混布朗气前后的轻型车NOx,THC,CO排放随整车加速过程的变化情况.结果表明:车速从13km·h-1加速到27 km·h-1的过程中,NOx体积分数下降4.8%,THC体积分数不变,CO体积分数升高5.6%;车速从23 km·h-1加速到40 km·h-1时,NOx体积分数下降4.1%左右,THC体积分数变化不明显,CO体积分数升高4.0%左右;由40 km·h-1加速到62 km·h-1的过程中,NOx体积分数下降8.1%,THC体积分数降低5.3%,CO体积分数降低3.0%.With the considerations of implosive and catalytic characteristics of Brown gas, a light-duty ve- hicle with diesel engine was chosen as research object. To investigate the effect of Brown gas on the emis- sion of light-duty vehicle under accelerating operation, the Brown gas was taken into the intake manifold of diesel engine to participate the combustion. On the transfer hub test bench, the emissions of NOx, THC and CO were tested under accelerating process with or without Brown gas. The results show that NOx decreases by 4.8% with unchanged THC, and CO increases by 5.6% when the speed accelerates from 13 km·h^-1 to 27 km·h^-1. When the speed accelerates from 23 km·h^-1 to 40 km·h^-1, NOx decreases by 4.1% with still unchanged THC, and CO increases by 4.0%. When the speed is accelerated from 40 km·h^-1 to 62 km·h^-1, NOx, THC and CO are reduced by 8.1%, 5.3% and 3.0%, respectively.

关 键 词：柴油机 布朗气 轻型车 加速 排放污染物 

分 类 号：TK411[动力工程及工程热物理—动力机械及工程]