In:
IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 555, No. 1 ( 2020-08-01), p. 012043-
Abstract:
The project team selected eight typical buses (CNG, LNG, gasoline- electric hybrid, gas-electricity hybrid) at different emission stages in the built-up area of Tangshan City to test the emission of gaseous pollutants and particulate matter under actual road conditions, systematically evaluated, analyzed and compared the test results, and established the VSPbin emission rate database and emission factor list of typical urban buses in built-up areas based on the actual travelling characteristics of Tangshan. In this study, four cycles of acceleration, constant speed, deceleration and idle speed were selected to analyze the travelling cycle of buses in Tangshan. The results showed that the proportion of acceleration was higher, while deceleration also had a higher proportion; The area of bus travelling was mainly in the urban area, and the travelling cycles were relatively complicated, so there were frequent acceleration and deceleration during the travelling process. For the buses, with the raising of emission standards and the use of hybrid technology, the emissions of CO 2 and NO x from the buses at National IV were decreased by 13% and 53.5% respectively compared with those from the buses of the same tonnage at National III; The emissions of CO 2 and NO x from the nature gas-electric hybrid buses at National V were reduced by 20% and 18.8% respectively compared with those from the nature gas-fueled buses of the same tonnage at National V.
Type of Medium:
Online Resource
ISSN:
1755-1307
,
1755-1315
DOI:
10.1088/1755-1315/555/1/012043
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2020
detail.hit.zdb_id:
2434538-6
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