Effects of air/fuel ratio on gas emissions in a small spark-ignited non-road engine operating with different gasoline/ethanol blends View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2017-07-13

AUTHORS

Waldir Nagel Schirmer, Luciano Zart Olanyk, Carmen Luisa Barbosa Guedes, Talita Pedroso Quessada, Camilo Bastos Ribeiro, Marlon André Capanema

ABSTRACT

This study investigates the effects of several blends of gasoline and anhydrous ethanol on exhaust emission concentrations of carbon monoxide (CO), total hydrocarbons (HCs), and nitrogen oxides (NOx) from a small spark-ignited non-road engine (SSINRE). Tests were carried out for different air/fuel equivalence ratios as measured by lambda (λ). A 196 cm3 single-cylinder four-stroke engine-generator operating at a constant load of 2.0 kW was used; pollutant gas concentrations were measured with an automatic analyzer similar to those typically used in vehicle inspections. The results showed that as the ethanol content of the mixture increased the concentrations of CO, HCs, and NOx reduced by 15, 53, and 34%, respectively, for values of λ < 1 (rich mixture) and by 52, 31, and 16% for values of λ > 1 (lean mixture). Overall, addition of anhydrous ethanol to the gasoline helped to reduce emissions of the pollutant gases investigated, what contributes to photochemical smog reduction and quality of life in urban areas. More... »

PAGES

20354-20359

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11356-017-9651-8

DOI

http://dx.doi.org/10.1007/s11356-017-9651-8

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1090662607

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/28707238


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