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on-board measurement of emissions from liquefied petroleum gas,gasoline and diesel powered passenger cars in Algeria

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Journal of Environmental Sciences 2014年第8期26卷 1651-1659页

作者： Saadane Chikhi Ménouèr Boughedaoui Rabah Kerbachi Robert Joumard Department of Industrial Chemistry Faculty of TechnologyUniversity of Blida 1Route de SoumaaBlida 09000Algeria Environmental Science and Technology Laboratory National Polytechnic School of AlgiersAlgiers 16200Algeria Transport and Environment Laboratory IfsttarBronFrance

on-board measurements of unit emissions of CO,HC,NOx and CO2 were conducted on 17 private cars powered by different types of fuels including gasoline,dual gasoline–liquefied petroleum gas（LPG）,gasoline,and diesel. The tests performed revealed the effect of LPG injection technology on unit emissions and made it possible to compare the measured emissions to the European Artemis emission model. A sequential multipoint injection LPG kit with no catalyst installed was found to be the most efficient pollutant reduction device for all of the pollutants,with the exception of the NOx. Specific test results for a sub-group of LPG vehicles revealed that LPG-fueled engines with no catalyst cannot compete with catalyzed gasoline and diesel engines. Vehicle age does not appear to be a determining parameter with regard to vehicle pollutant emissions. A fuel switch to LPG offers many advantages as far as pollutant emissions are concerned,due to LPG＇s intrinsic ***,these advantages are being rapidly offset by the strong development of both gasoline and diesel engine technologies and catalyst converters. The LPG＇s performance on a chassis dynamometer under real driving conditions was better than expected. The enforcement of pollutant emission standards in developing countries is an important step towards introducing clean technology and reducing vehicle emissions.

关键词： Unit emission Pollutant Vehicle on-board measurement LPG Gasoline Diesel

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