Browse Publications Technical Papers 2020-01-1070
2020-04-14

The study on the influence of factors on vehicle refueling emission test 2020-01-1070

Two vehicles with ORVR system which are met with the US standard are studied. A comparative of refueling emissions test under different refueling rate and different refueling temperature are studied. The HC chemical analysis was carried out for the fuel gas emission from a sample car. The results show that with the increase of the refueling rates, the refueling emissions decline at first, and then gradually stabilize; with the increase of the refueling temperature, the results of refueling emissions show a gradual increase. Under the condition of 37 L / min refueling flow rate and 20 ℃ fuel temperature, 14 kinds of alkanes were emitted from the fuel, in which isobutane, isopentane and n-pentane were the highest emissive components, accounting for 57.66% of the total amount of VOCs.

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