کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4428849 1619805 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Contribution of evaporative emissions from gasoline vehicles toward total VOC emissions in Japan
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Contribution of evaporative emissions from gasoline vehicles toward total VOC emissions in Japan
چکیده انگلیسی

The features of evaporative emissions from gasoline vehicles were examined. One potential source of evaporative emissions is mainly the so-called sigh of a fuel tank, which is a function of the daily temperature change and the volume not occupied by fuel. A theoretical equation was proposed for estimating the fuel vapor generation. It reproduced observed features well but underestimated the absolute values obtained in the experimental results. The widely used semi-empirical Reddy equation overestimates the results. The performance of a carbon canister was also evaluated. More than 95% of fuel vapor generation was trapped by the carbon canister. However, the canister worked for only one day because it adsorbed more VOC than that contained in the sigh alone. To estimate the evaporative emissions in the real world, the fuel tank temperature change while a car was parked in an outside car park was monitored and was found to be almost the same as the change in ambient air temperature; no other weather conditions had any effect. According to the findings in this study and data on frequency of car use, the annual amount of evaporative emissions from gasoline vehicles in Japan was estimated to be 4.6% of the total VOC emissions in Japan, making it the 6th-highest source of VOC.


► Evaporative emissions were due to the release of VOC vapor in the tank.
► Simplified theoretical model estimating the amount of Evaporative emissions were proposed.
► Carbon canister with Japanese gasoline car was active for only one day.
► Evaporative emissions from gasoline vehicle occupy 4.6% of total VOC in Japan.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 449, 1 April 2013, Pages 143–149
نویسندگان
,