首页    期刊浏览 2024年11月26日 星期二
登录注册

文章基本信息

  • 标题:Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)
  • 本地全文:下载
  • 作者:Barouch Giechaskiel ; Simone Casadei ; Tommaso Rossi
  • 期刊名称:Sustainability
  • 印刷版ISSN:2071-1050
  • 出版年度:2021
  • 卷号:13
  • 期号:16
  • 页码:8762
  • DOI:10.3390/su13168762
  • 语种:English
  • 出版社:MDPI, Open Access Journal
  • 摘要:In the last years, the in-use emissions of vehicles are measured on the road with portable emissions measurement systems (PEMS). PEMS cannot measure as accurately as the laboratory grade equipment, and studies on their measurement uncertainty have continued since their appearance in the market. In this study we compared PEMS to laboratory grade equipment in Italian laboratories testing a diesel “Golden” (i.e., reference) vehicle for two consecutive years. The results showed equal means of PEMS and laboratory grade equipment for carbon dioxide (CO<sub>2</sub>), nitrogen oxides (NO<sub>x</sub>), and particle number (PN), with a variability of ±5 g/km for CO<sub>2</sub>, ±10 mg/km for NO<sub>x</sub>, and ±1 × 10<sup>11</sup> p/km for PN, which further decreased in the second year. For carbon monoxide (CO), the PEMS were on average 5–20 mg/km higher than the bags (variability ±40 mg/km). The main conclusion of this study is that PEMS are accurate under controlled laboratory ambient conditions, without any indications of significant bias.
国家哲学社会科学文献中心版权所有