Volume 22, Issue 2 (February 2022)                   Modares Mechanical Engineering 2022, 22(2): 107-119 | Back to browse issues page

‎ 20.1001.1.10275940.1400.22.2.5.8

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Bashi M, Ghazikhani M. Experimental Study of the Effects of Adding Diesel Fumigation to the Intake Air of an Engine on Emissions, Specific Fuel Consumption, and Cylinder Pressure Parameters. Modares Mechanical Engineering 2022; 22 (2) :107-119
URL: http://mme.modares.ac.ir/article-15-53502-en.html
Experimental Study of the Effects of Adding Diesel Fumigation to the Intake Air of an Engine on Emissions, Specific Fuel Consumption, and Cylinder Pressure Parameters
Mohsen Bashi1 , Mohsen Ghazikhani * 2
1- Dept. of Mechanical Engineering, Ferdowsi University of Mashhad, Azadi Square, 9177948974, Mashhad, Iran
2- Dept. of Mechanical Engineering, Ferdowsi University of Mashhad, Azadi Square, 9177948974, Mashhad, Iran , ghazikhani@um.ac.ir
Abstract:   (1840 Views)
Numerous studies on using light fuels in compression ignition engines to reduce emission and increase efficiency have been done. The Reactivity Controlled Compression Ignition engines are one of these studies. Nevertheless, using heavy fuels vapor for achieving partially premixed combustion is not investigated. Using diesel fume (to upgrade conventional combustion to premixed combustion) resolves the need for a secondary fuel tank in a car. However, diesel fuel has heavy hydrocarbons and is a high reactivity fuel. So in this study, diesel has evaporated in a tank, and its vapor has injected into the intake air for studying a semi homogeneous combustion. The tests have performed at 2000 rpm (the speed of maximum torque). According to the achieved results, although diesel has heavy hydrocarbons and is a high reactivity fuel, adding diesel fumigation can reduce soot and NOx emissions up to 20% and 50%, respectively. Increasing load reduces the positive impact of adding diesel fumigation on soot and NOx emission reduction. However, the positive impact of adding diesel fumigation continues up to 80% of the full load. Adding diesel fumigation has no impact on cyclic variation and ringing intensity, but increases CO and HC emission. The evaporation of diesel averagely consumes 15% of brake power. Also on average, 5% of diesel evaporation energy can be supplied by recovering heat energy from the exhaust gas (warming up diesel from ambient temperature to the exhaust gas temperature).
Keywords: Partially Premixed Combustion, Diesel Engine, Emissions, Specific Fuel Consumption, Cylinder Pressure Analysis, Diesel Fumigation, Diesel Vapor
Full-Text [PDF 761 kb]   (907 Downloads)    
Article Type: Original Research | Subject: Internal Combustion Engine
Received: 2021/06/22 | Accepted: 2021/08/27 | Published: 2022/01/30
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