插电式混合动力汽车加油排放建模及影响因素分析

IF 2.6 3区 工程技术 Q3 ENERGY & FUELS
Xudong Wu, Ren He
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引用次数: 0

摘要

摘要汽车燃油蒸发排放是挥发性有机物(VOCs)的重要来源,对环境造成严重污染。插电式混合动力汽车(phev)通常使用高压油箱来密封油箱中运行损耗(RL)、热浸损耗(HSL)和日呼吸损耗(DBL)产生的燃油蒸气,导致加油排放增加。随着插电式混合动力汽车的广泛使用,加油排放问题不容忽视。本研究根据插电式混合动力汽车的工作特点,将插电式混合动力汽车的加注过程分为降压阶段和加注阶段,并建立了燃料蒸气排放过程的数学模型。利用MATLAB对数学模型进行了求解和计算,并与实验结果进行了比较。实验结果与计算结果的误差仅为2.45%,表明所建立的数学模型能够准确预测插电式混合动力汽车的加油排放。开展了插电式混合动力汽车加注排放实验活动,讨论了影响插电式混合动力汽车加注排放的因素,包括初始压力、环境温度和加注温度。首次讨论了环境温度与加油温度温差对加油排放的影响,发现加油温度对加油排放的影响比环境温度更为显著。与293 K相比,当加油温度提高到303 K和313 K时,加油排放质量分别增加了31.97%和69.88%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling and influence factors analysis of refueling emissions for plug-in hybrid electric vehicles
Abstract Vehicle fuel evaporative emissions are an important source of volatile organic compounds (VOCs), causing serious pollution to the environment. Plug-in hybrid electric vehicles (PHEVs) often use high-pressure fuel tank to seal the fuel vapor generated by running loss (RL), hot soak loss (HSL) and diurnal breathing loss (DBL) in the fuel tank, resulting in increased refueling emissions. With the widespread use of PHEVs, the issue of refueling emissions cannot be ignored. In this study, according to the working characteristics of PHEV, the refueling process is divided into depressurization phase and refueling phase, and a mathematical model is established for the fuel vapor emission process. The mathematical model is solved and calculated by using MATLAB, and compared with the experimental results. The error between experimental and calculated results of refueling emissions is only 2.45%, indicating that the established mathematical model can accurately predict the refueling emissions of PHEVs. The refueling emission experiment activities is carried out, and the influencing factors of PHEV refueling emission are discussed, including initial pressure, ambient temperature and refueling temperature. The effect of the temperature difference between ambient temperature and refueling temperature on refueling emissions is discussed for the first time, and it is found that refueling temperature has a more significant impact on refueling emissions compared with ambient temperature. When refueling temperature increases to 303 K and 313 K compared to 293 K, refueling emission mass increases by 31.97% and 69.88% respectively.
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来源期刊
CiteScore
6.40
自引率
30.00%
发文量
213
审稿时长
4.5 months
期刊介绍: Specific areas of importance including, but not limited to: Fundamentals of thermodynamics such as energy, entropy and exergy, laws of thermodynamics; Thermoeconomics; Alternative and renewable energy sources; Internal combustion engines; (Geo) thermal energy storage and conversion systems; Fundamental combustion of fuels; Energy resource recovery from biomass and solid wastes; Carbon capture; Land and offshore wells drilling; Production and reservoir engineering;, Economics of energy resource exploitation
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