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Statements

Subject Item
n2:RIV%2F46747885%3A24210%2F13%3A%230005914%21RIV14-MSM-24210___
rdf:type
n14:Vysledek skos:Concept
dcterms:description
Bioethanol, produced from renewable sources, is promoted as a fuel in higher concentrations in newer flexible fuel engines, and in lower concentrations in the general fleet. Introduction of a blend of 85% ethanol with gasoline (E85) at a competitive price in the Czech Republic has, however, spontaneously resulted in this fuel being used in “ordinary” engines not adapted for this fuel. This study investigates the operation of a typical gasoline car with fuel injection and three-way catalyst on gasoline, E85, and additionally on a blend of 85% n-butanol with gasoline, as butanol features better material compatibility than ethanol. The car was equipped with a portable, on-board emissions monitoring system and driven along a route comprising city and rural roads, including hills. Multiple runs were made on each fuel to verify test-to-test repeatability. The engine control unit has remarkably well adapted itself, over tens of km of driving, to both E85 and n-butanol by increasing the fuel injector pulse width, so that the engine was operated mostly at stoichiometric ratio on all fuels. Exhaust temperatures at tailpipe were comparable for all fuels. Operation on E85 and n-butanol blend has resulted, compared to gasoline, in no adverse effects on HC, lower emissions of CO and higher emissions of NOx, likely resulting from changes in air-fuel ratio. E85 had no effects on particle mass and reduced particle length (indicator of nanoparticles), while n-butanol has increased particle mass and had no adverse effects on particle length. Bioethanol, produced from renewable sources, is promoted as a fuel in higher concentrations in newer flexible fuel engines, and in lower concentrations in the general fleet. Introduction of a blend of 85% ethanol with gasoline (E85) at a competitive price in the Czech Republic has, however, spontaneously resulted in this fuel being used in “ordinary” engines not adapted for this fuel. This study investigates the operation of a typical gasoline car with fuel injection and three-way catalyst on gasoline, E85, and additionally on a blend of 85% n-butanol with gasoline, as butanol features better material compatibility than ethanol. The car was equipped with a portable, on-board emissions monitoring system and driven along a route comprising city and rural roads, including hills. Multiple runs were made on each fuel to verify test-to-test repeatability. The engine control unit has remarkably well adapted itself, over tens of km of driving, to both E85 and n-butanol by increasing the fuel injector pulse width, so that the engine was operated mostly at stoichiometric ratio on all fuels. Exhaust temperatures at tailpipe were comparable for all fuels. Operation on E85 and n-butanol blend has resulted, compared to gasoline, in no adverse effects on HC, lower emissions of CO and higher emissions of NOx, likely resulting from changes in air-fuel ratio. E85 had no effects on particle mass and reduced particle length (indicator of nanoparticles), while n-butanol has increased particle mass and had no adverse effects on particle length.
dcterms:title
Real-World On-Road Exhaust Emissions from an Ordinary Gasoline Car Operated on E85 and on Butanol-Gasoline Blend Real-World On-Road Exhaust Emissions from an Ordinary Gasoline Car Operated on E85 and on Butanol-Gasoline Blend
skos:prefLabel
Real-World On-Road Exhaust Emissions from an Ordinary Gasoline Car Operated on E85 and on Butanol-Gasoline Blend Real-World On-Road Exhaust Emissions from an Ordinary Gasoline Car Operated on E85 and on Butanol-Gasoline Blend
skos:notation
RIV/46747885:24210/13:#0005914!RIV14-MSM-24210___
n3:aktivita
n11:V
n3:aktivity
V
n3:cisloPeriodika
24-0102
n3:dodaniDat
n6:2014
n3:domaciTvurceVysledku
n5:3022889 n5:5686997 n5:5758602
n3:druhVysledku
n13:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
101657
n3:idVysledku
RIV/46747885:24210/13:#0005914
n3:jazykVysledku
n18:eng
n3:klicovaSlova
butanol; alcohol; biofuel; exhaust emissions; PEMS; real driving emissions; measurement; spark ignition; particulate matter; nanoparticles; combustion
n3:klicoveSlovo
n4:particulate%20matter n4:PEMS n4:biofuel n4:measurement n4:butanol n4:real%20driving%20emissions n4:nanoparticles n4:spark%20ignition n4:exhaust%20emissions n4:combustion n4:alcohol
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[C743993C7063]
n3:nazevZdroje
SAE Technical Paper Series
n3:obor
n7:JT
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n6:2013
n3:svazekPeriodika
2013
n3:tvurceVysledku
Pechout, Martin Vojtíšek, Michal Mazač, Martin
s:issn
0148-7191
s:numberOfPages
15
n15:doi
10.4271/2013-24-0102
n17:organizacniJednotka
24210