Assessment of 10-nm Particle Number (PN) Portable Emissions Measurement Systems (PEMS) for Future Regulations
Assessment of 10-nm Particle Number (PN) Portable Emissions Measurement Systems (PEMS) for Future Regulations
复制标题
DOI：
10.3390/ijerph17113878
复制
发表时间：
2020-06-01
影响因子：
--
通讯作者：
Mamakos, Athanasios
中科院分区：
文献类型：
--
作者：
Giechaskiel, Barouch;Lahde, Tero;Mamakos, Athanasios
配备微粒过滤器的车辆的微粒数（PN）排放量较低。然而，存在可以具有高PN水平的技术，特别是低于当前较低的规定粒度23 nm的技术。亚23纳米的颗粒也被认为至少与更大的超细颗粒一样危险。因此，欧盟（EU）计划将颗粒物的浓度控制在10 nm以下。在这项研究中，我们比较了原型便携式排放测量系统（PEMS）和参考实验室系统测量从10 nm。测试包括循环和恒定速度，使用柴油，汽油或液化石油气（LPG）燃料的车辆。结果表明，PEMS在连接到尾管和稀释通道的参考系统的+/- 40%范围内。根据积极的调查结果和原型仪器的检测效率，起草了未来法规的技术规范提案。
The particle number (PN) emissions of vehicles equipped with particulate filters are low. However, there are technologies that can have high PN levels, especially below the currently lower regulated particle size of 23 nm. Sub-23-nm particles are also considered at least as dangerous as the larger ultrafine particles. For this reason, the European Union (EU) is planning to regulate particles down to 10 nm. In this study we compared prototype portable emission measurement systems (PEMS) and reference laboratory systems measuring from 10 nm. The tests included cycles and constant speeds, using vehicles fuelled with diesel, gasoline or liquefied petroleum gas (LPG). The results showed that the PEMS were within +/- 40% of the reference systems connected to the tailpipe and the dilution tunnel. Based on the positive findings and the detection efficiencies of the prototype instruments, a proposal for the technical specifications for the future regulation was drafted.