Combustion characteristics, performance and emissions from a diesel power generator fuelled by B7-ethanol blends

Autor:	Alex de Oliveira, José Ricardo Sodré, Osmano Souza Valente, André Marcelino de Morais
Rok vydání:	2015
Předmět:	Biodiesel Materials science Diesel exhaust business.industry General Chemical Engineering Energy Engineering and Power Technology Exhaust gas Diesel engine Combustion Pulp and paper industry Diesel fuel Fuel Technology Exhaust gas recirculation business NOx
Zdroj:	Fuel Processing Technology. 139:67-72
ISSN:	0378-3820 1873-7188
DOI:	10.1016/j.fuproc.2015.08.010
Popis:	The effects of fuel blends containing 5, 10 and 15 wt.% of anhydrous ethanol in diesel oil with 7% of biodiesel (B7) on performance, emissions and combustion characteristics of a diesel power generator are investigated. The engine was tested with its original configuration, with the fuel blends directly injected into the combustion chamber, and the applied load varied from 5 to 37.5 kW. The results were compared with standard B7 operation, and showed that in in-cylinder peak pressure and heat release rate were decreased at low loads and increased at high loads with the use of ethanol. Increasing ethanol concentration caused increased ignition delay, decreased combustion duration and reduced exhaust gas temperature. The use of ethanol decreased carbon dioxide (CO2) emissions, up to 8.6% lower than B7. Carbon monoxide (CO), total hydrocarbons (THC) and oxides of nitrogen (NOX) emissions showed different behavior, depending on load and ethanol concentration.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d83830e0b5e02dab726e47640447d199 https://doi.org/10.1016/j.fuproc.2015.08.010 Zobrazit plný text záznamu Full Text from ScienceDirect