Fuel and Combustion

Fuel and Combustion

Investigating the Exhaust Emissions of a Spark Ignition Engine Using Gasohol

Authors
Mostafa Kiani Deh Kiani 1
Barat Gobadian 2
هادی رحیمی 2
Gholam Hosein Jajafi 2
1 Shahid Chamran University of Ahvaz, Iran
2 Department of Agricultural Machinery, Faculty of Agriculture, Tarbiat Modares University
Abstract
Increase in environmental pollutions due to application of fossil fuels has encouraged researchers to investigate the renewable and clean fuels. One of the most important renewable fuels is bioethanol which makes a suitable fuel when it has with gasoline. The lower percentage volume of bioetanol blended with gasoline is called gasohol. In the present paper, the effect of gasohol which is a clean fuel on a spark ignition exhaust emissions of: CO, CO2, HC and NOX at 25, 50, 75 and 100% loads and speeds of 2000 and 4000 rpm was investigated. Bioethanol fuel was added to gasoline with different volume percentages (E0, E5, E10, E15 and E20). A gas analyzer was used for measuring exhaust emissions. Results of this study showed that increasing the percentage of bioethanol in gasoline fuel blends decreased CO and HC, while CO2 was increased. Also, for 25, 50 and 75% loads, NOX was decreased, but it was increased in full load conditions.
Keywords
Bioethanol- gasoline blends
Gasohol
Exhaust emissions
Spark
ignition engine
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