环境温度对轻型车二氧化碳排放的影响
Influence of ambient temperature on the CO2 emitted of light-duty vehicle
Dan Tan, Yachao Wang, Jianwei Tan, Jiachen Li, Changyu Wang, Yunshan Ge*
https://doi.org/10.1016/j.jes.2023.04.018
摘要
由于全球变暖，人们对车辆排放的温室气体给予了更多关注。为了量化温度对车辆二氧化碳排放的影响，本研究在-10℃、0℃、23℃和40℃的环境温度下，对两辆轻型E10汽油车进行了WLTC测试循环，并发现在-10℃下，冷启动和热启动时1号车的二氧化碳排放因子比2号车分别高了22.07%和20.22%，这是因为1号车的排量更大，摩擦副对数也比2号车多。由于平均速度低、频繁加速和减速，低速阶段的二氧化碳排放最高。二氧化碳温度因子与环境温度呈强线性相关（R² = 0.99），根据二氧化碳温度因子及其关系式，当获得23℃的二氧化碳排放因子时，可以计算其他环境温度下的二氧化碳排放因子，该方法也可用于获取不同车辆的二氧化碳温度因子。此外，本研究提出了一种定量区分载荷和温度变化对二氧化碳排放的影响的方法，并发现载荷是二氧化碳排放变化的主要因素。与23℃相比，1号车在-10℃和0℃时因载荷变化导致的二氧化碳排放分别为62.83 g/km和47.42 g/km，而2号车分别为45.01 g/km和35.63 g/km。
亮点
1. 计算了-10℃、0℃、23℃和40℃基于距离的二氧化碳排放因子；
2. 发现二氧化碳排放与环境温度之间存在强线性相关；
3. 提出了一种量化温度和载荷对二氧化碳排放影响的方法。
Abstract
Because of global warming, people have paid more attention to greenhouse gas emitted by vehicles. To quantify the impact of temperature on vehicle CO2 emissions, this study was conducted using the world light vehicle test cycle on two light-duty E10 gasoline vehicles at ambient temperatures of -10, 0, 23, and 40℃, and found that CO2 emission factors of Vehicle 1 in the low-speed phase were 22.07% and 20.22% higher than those of Vehicle 2 at cold start and hot start under -10℃. The reason was vehicle 1 had a larger displacement and more friction pairs than vehicle 2. There was the highest CO2 emission at the low-speed phase due to low average speed, frequent acceleration, and deceleration. The CO2 temperature factor and the ambient temperature had a strong linear correlation (R2 = 0.99). According to CO2 temperature factors and their relationships, CO2 emission factors of other ambient temperatures could be calculated when the CO2 emission factor of 23℃ was obtained, and the method also could be used to obtain the CO2 temperature factors of different vehicles. To separate the effect of load setting and temperature variation on CO2 emission quantitatively, a method was proposed. And results showed that the load setting was dominant for the CO2 emission variation. Compared with 23℃, the CO2 emission for vehicle 1 caused by load setting variation were 62.83 g/km and 47.42 g/km, respectively at -10 and 0℃, while those for vehicle 2 were 45.01 g/km and 35.63 g/km, respectively.
作者简介
第一作者
谭丹，北京理工大学在读博士生，已取得北京理工大学工学硕士学位，研究方向为能源动力与环境。在Science of the Total Environment，Journal of Environmental Sciences，汽车工程等国内外期刊发表文章3篇，授权专利1项，申请专利技术1项。
通讯作者
葛蕴珊教授于1992年在吉林工业大学获得工学博士学位。现任高效低排放内燃机技术工业和信息化部重点实验室主任、汽车动力性及排放测试国家专业实验室主任，第九届中国内燃机学会节能净化分会、后处理技术分会和测试分会副主任委员、中国环境科学学会大气环境分会副主任委员。我国移动源排放标准核心起草人，曾任联合国WP.29车内空气质量工作组联合主席。主要从事移动源排放控制与政策法规。近五年主持国家重点研发计划课题2项、国家自然科学基金2项，企业合作课题20余项，发表SCI/EI论文90余篇。
原文链接
https://www.sciencedirect.com/science/article/abs/pii/S1001074223001742
引用格式
Dan Tan, Yachao Wang, Jianwei Tan, Jiachen Li, Changyu Wang, Yunshan Ge, 2024. Influence of Ambient Temperature on the CO2 Emitted of Light-duty vehicle. J. Environ. Sci. 140, 59-68.
