The Study on the Influence of Factors on Vehicle Refueling Emission Test

Dai, Chunbei; Zhang, Taiyu; Zhong, Chongzhi; Chen, Qiang; Sun, Jiaxing; Wu, Xiaoliang; Yu, Tiefei

doi:10.4271/2020-01-1070

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…However, the refueling duration is shortened at a high rate, and the fuel accumulation at the refueling port gradually increases, which can easily lead to fluctuations, so the gas flow is affected, and even premature shut-off occurs. This is very close to the research of Dai Chunbei [19] on the influence of refueling rate through star-ccm+ three-dimensional fluid calculation software. There is no occurrence of refueling premature shutoff in advance in the plateau environment when the refueling rate is 47L/min, which is slightly different from that.…”

Section: Influence Of Refueling Temperature On Refueling Emissionsupporting

confidence: 84%

Influence of Different Refueling Temperatures and Refueling Rates on Refueling Emission

Xu,

Gu,

Wang

et al. 2023

J. Phys.: Conf. Ser.

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With the increase of automobiles on hand in China, automobile refueling emissions, as an important part of volatile organic compounds (VOC), have been paid more and more attention. Frequent refueling is related to the fuel vapor concentration and operation safety of the gas stations. Reducing refueling emissions can improve fuel vapor recovery efficiency and reduce fuel waste in gas stations. Therefore, the research on refueling emissions test began to attract attention. However, due to the long pre-processing time of the refueling test, the occupation of the laboratory, and the complicated operation of testers, most studies in China focus on the numerical simulation of a simplified refueling model or the impact analysis of refueling emission of the local fuel system, and there are fewer studies on refueling emission of the whole automobile. This paper aims to analyze the influence of automobile refueling emissions on the environment more scientifically and reduce the fuel vapor loss in refueling more reasonably. The influence of different refueling temperatures and refueling rates on the refueling emission of the whole automobile was investigated. The research showed that automobile refueling emissions increased with the refueling temperature increasing. When the refueling temperature increased to a certain extent, fuel splashing occurred in refueling. When the refueling temperatures are 10°C, 30°C, and 40°C, the refueling emissions of vehicles equipped with ORVR system are 0.92 times, 3.08 times, and 8.29 times than the standard refueling temperature (20°C). In actual refueling, it was recommended to adopt the refueling temperature of 20°C. The refueling emissions decreased first and then increased with the refueling rate. The refueling emissions with the increase in refueling rate were lower than that with the decrease in refueling rate. When the refueling rate is 7L/min, 27L/min, 47L/min, the refueling emissions of vehicles equipped with the ORVR system are 13 times, 1.25 times, and 1.75 times that of the standard refueling rate (37L/min). Too high a refueling rate could lead to fuel splashing; therefore, a refueling rate of 37 L/min was recommended. Compared with ordinary gasoline vehicles and gasoline vehicles equipped with the ORVR system, it can be seen that vehicles equipped with the ORVR system can reduce refueling emissions by 99%. According to an industry report, 12320.4386t gasoline can be saved throughout the year if all vehicles are installed with the ORVR system in 2017 in Yunnan province. It will save 39.3730t and 149.6174t gasoline, when the gas station chooses a refueling temperature of 20 °C throughout the year, compared with the refueling temperature of 30°C and 40°C. And using a refueling rate of 37 L/min can save 4.7248t and 14.1743t gasoline, compared with the refueling rates of 27 L/min and 47 L/min throughout the year. Therefore, it is recommended that China continue to promote the installation of the ORVR system. In the actual refueling process, it is recommended to choose a lower refueling temperature and slower refueling rates to save energy.

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Section: Influence Of Refueling Temperature On Refueling Emissionsupporting

confidence: 84%

Influence of Different Refueling Temperatures and Refueling Rates on Refueling Emission

Xu,

Gu,

Wang

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…The test equipment shown in Figure 1 mainly includes PZEV VT-SHED [10,11], fuel car, running loss SHED and dyno, canister treatment system, and other auxiliary equipment. The running loss test chamber is built by WEISS Company and consists of an airtight chamber, airbag, fresh air system, fuel tank heating system, temperature control system, etc.…”

Section: Test Equipmentmentioning

confidence: 99%

Construction of Single Evaporative Emission Model and Analysis of Emission Characteristics for Gasoline Vehicles

Zhang,

Wu,

Zhang

2023

Advances in Transdisciplinary Engineering

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To calculate the proportion of evaporative emissions of the China VI, this paper establishes a single-vehicle evaporative emission model for light gasoline vehicles, and an activity level model based on the car use habits of the employees of China Automotive Technology Research Center Co., Ltd. The proportion of evaporative emissions from Vehicle-A and Vehicle B, the running loss emissions of both Vehicle-A and Vehicle B account for over 50%, while refueling emissions and the diurnal 48-hour emissions account for lower proportions. The total annual evaporative emissions of vehicle A can reach 353.496 g, and the total annual evaporative emissions of vehicle B can reach 589.758 g.

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Impact of temperature/diurnal conditions, refuelling quantity and prefill volume behaviour on two-wheeler refuelling emission

Yadav,

Goyal,

Yadav

2024

Clean Techn Environ Policy

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The Study on the Influence of Factors on Vehicle Refueling Emission Test

Cited by 3 publications

References 2 publications

Influence of Different Refueling Temperatures and Refueling Rates on Refueling Emission

Influence of Different Refueling Temperatures and Refueling Rates on Refueling Emission

Construction of Single Evaporative Emission Model and Analysis of Emission Characteristics for Gasoline Vehicles

Impact of temperature/diurnal conditions, refuelling quantity and prefill volume behaviour on two-wheeler refuelling emission

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