不同挡位下中型自卸车对实际道路污染物排放影响研究
Research on impact of medium-sized dump truck on actual road pollutant emissions in different gears
黄金秋 1赵朕 1孙城1
作者信息
- 1. 中汽研汽车检验中心(常州)有限公司,江苏 常州 213000
- 折叠
摘要
为评估自卸车在不同挡位行驶时的污染物排放,采用便携式排放测试设备(PEMS)对一台国Ⅵ重型柴油车进行了 2 次实际道路排放测试,参考GB 17691-2018《重型柴油车污染物排放限值及测量方法(中国第六阶段)》进行了综合排放测试.结果表明,车辆行驶挡位影响发动机排温,进而影响NOX排放,转速高的情况下NOX排放更低.高挡位低转速情况下NOX比排放为 225.6 mg/(kW·h),低挡位高转速情况下NOX比排放为 73.2 mg//(kW·h),降低了 67.6%;高挡位低转速情况下PN比排放为 9.74×1010 个/(kW·h),低挡位高转速情况下PN比排放为8.57×1010 个/(kW·h),降低了 12%.
Abstract
In order to evaluate the pollutant emission level of the dump truck under different gear driving conditions,two actual road emission tests were carried out on a China VI heavy-duty diesel vehicle using portable emission testing equipment(PEMS),and the comprehensive emission test was determined with reference to GB 17691-2018 Pollutant Emission Limits and Measurement Methods for Heavy-duty Diesel Vehicles(China Stage VI).The results showed that the gear level affected the exhaust temperature of the engine,thereby affecting the NOX emissions,and the NOX pollutants were lower at high speeds.The NOX specific emission was 225.6 mg/(kW·h)at high gear and low speed,and 73.2 mg/(kW·h)at low gear and high speed,which was reduced by 67.6%.The PN ratio emission was 9.74×1010#/(kW·h)at high gear and low speed and 8.57×1010#/(kW·h)at low gear and high speed,which was reduced by 12%.
关键词
自卸车/综合排放测试/PEMSKey words
dump truck/comprehensive emission testing/PEMS引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据