Mathematical models of refueling emission for car with ORVR system
-
摘要: 分析不同类型车载油气回收系统(ORVR)的结构, 运用传质原理, 针对ORVR系统中是否安装有压力控制阀, 分别建立了机械式和液封式ORVR系统的轿车加油排放模型。仿真结果表明: 安装ORVR系统后, 轿车加油排放量比仅安装活性炭罐装置时减少97%;采用机械式ORVR系统, 由于加油管口完全密封, 轿车加油排放比采用液封式的减少37%;当ORVR系统中安装压力控制阀时, 轿车加油排放比未安装压力控制阀时减少8%。可见, 运用ORVR技术可以有效地控制轿车加油排放, 降低环境污染。Abstract: The structures of different kinds of ORVR(on-board refueling vapor recovery) systems were analyzed.Aiming at the systems with pressure control valve or not, tow mathematical models of mechanical and liquid seal ORVR systems were established by using mass transfer principle. The comparison between model simulation result and experiment data shows that the quantity of refueling emission for car with ORVR decreases by 97% compared with that of car with activated carbon canister.Because the inlet of filling pipe is entirely sealed, the refueling emission of car with mechanical ORVR system reduces by 37% compared with liquid seal ORVR system.When pressure control valve is installed in the ORVR system, the refueling emission of car reduces by 8%. Obviously, the ORVR technique can be used to effectively control the refueling emission of car and to reduce environmental pollution.
-
Key words:
- automobile engineering /
- refueling emission /
- ORVR system /
- mass transfer theory
-
图 1 安装液封式ORVR系统的油箱加油简图
Figure 1. Refueling sketch diagram of tank with liquid ORVR system
图 2 安装液封式ORVR系统前后加油排放对比
Figure 2. Comparison of refueling emissions before and after installing liquid ORVR system
图 3 安装不同类型ORVR系统加油排放对比
Figure 3. Comparison of refueling emissions installed with different kinds of ORVR systems
图 4 安装压力控制阀前后加油排放对比
Figure 4. Comparison of refueling emissions before and after installing pressure control valve
-
[1] 张春化, 王奉双, 马志义, 等. 在用汽车不同测试方法的排放特性[J]. 长安大学学报: 自然科学版, 2009, 29(2): 88-93. https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200902023.htmZHANG Chun-hua, WANG Feng-shuang, MAZhi-yi, et al. Emission characteristics of in-use vehicles under different test modes[J]. Journal of Chang an University: Natural Science Edition, 2009, 29(2): 88-93. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200902023.htm [2] 程勇, 付铁强, 李洧, 等. 国产轻型汽油车蒸发排放现状与分析[J]. 汽车工程, 2002, 24(3): 182-186. https://www.cnki.com.cn/Article/CJFDTOTAL-QCGC200203001.htmCHENG Yong, FU Tie-qiang, LI Wei, et al. Status quo and analysis of evaporative emission from domestic light-duty gasoline vehicle[J]. Automotive Engineering, 2002, 24(3): 182-186. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-QCGC200203001.htm [3] LAVOIE G A, I MAI Y A, JOHNSON P J. A fuel vapor model(FVSMOD)for evaporative emissions system design and analysis[J]. SAE Paper, 982644: 1-14. [4] QUIGLEY C J. Refueling and evaporative emissions of volatile organic compounds from gasoline powered motor vehicles[D]. Austin: University of Texas, 2007. [5] 郑广州. 车用活性炭的试验研究[J]. 天津汽车, 2004(1): 19-21. https://www.cnki.com.cn/Article/CJFDTOTAL-TJQC200401010.htmZHENG Guang-zhou. Experimental study on vehicle active carbon[J]. Tianjin Auto, 2004(1): 19-21. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TJQC200401010.htm [6] REDDY S R. Prediction of fuel vapor generationfroma vehicle fuel tank as a function of fuel RVP and temperature[J]. SAE Paper, 892089: 1-9. [7] MASTROIANNI M. Experi mental investigation of automotivefuel tankfilling[D]. Windsor: Univesity of Windsor, 2000. [8] UWE M. Activated carbo canisters for automobiles[J]. Filtration and Separation, 1997, 34(10): 1016-1018. doi: 10.1016/S0015-1882(97)87275-8 [9] 黄维秋, 钟秦. 非稳态油品蒸发的数值分析Ⅱ. 数值分析及应用实例[J]. 石油学报: 石油加工, 2004, 20(1): 52-57. https://www.cnki.com.cn/Article/CJFDTOTAL-SXJG200401009.htmHUANG Wei-qiu, ZHONG Qin. Numerical analysis of petroleum products evaporation under unsteady condition Ⅱ, numerical analysis and application examples[J]. Acta Petrolei Sinica: Petroleum Processing Section, 2004, 20(1): 52-57. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SXJG200401009.htm -
下载:
点击查看大图
计量
- 文章访问数: 701
- HTML全文浏览量: 149
- PDF下载量: 742
- 被引次数: 0
