Development of the specific emission factors for buses in Hanoi, Vietnam.
Environ Sci Pollut Res Int
; 26(23): 24176-24189, 2019 Aug.
Article
em En
| MEDLINE
| ID: mdl-31228063
ABSTRACT
This paper develops the specific emission factors for buses in the real-world traffic conditions in the inner city of Hanoi, Vietnam. An engine stationary cycle consisting of 14 modes was developed based on the typical driving cycle of Hanoi buses which had been constructed with the application of Markov chain theory. This is the first engine stationary emissions test cycle constructed for heavy-duty engine in Vietnam. Based on this cycle, the country-specific emission factors (CSEFs) of air pollutants including CO, HC, NOx, CO2, and PM for buses in Hanoi have been developed using the emission measurements on the engine test bed. It is found that almost all developed emission factors are higher than those derived from the emission measurements to the ECE R49 on the same engine. These emission factors, therefore, can be used to improve the quality of the emission inventory of buses in Hanoi.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Emissões de Veículos
/
Veículos Automotores
/
Poluentes Atmosféricos
Tipo de estudo:
Health_economic_evaluation
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article