An Experimental Study on Biodiesel Characteristics in a Common Rail Direct Injection Diesel Engine
Owing to increasing oil price caused by risk of oil depletion, many researchers have focused to develop various alternative energies. Biodiesel is one of those energies, which has been a hot-issue recently in automotive industries. Because biodiesel has s
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Abstract Owing to increasing oil price caused by risk of oil depletion, many researchers have focused to develop various alternative energies. Biodiesel is one of those energies, which has been a hot-issue recently in automotive industries. Because biodiesel has similar characteristics as diesel, it is possible to use present gas stations, facilities and engine without any modification. It has also an advantage that the emission of biodiesel is lower than conventional diesel engine because it contains oxygen in the fuel. However biodiesel has some problems such as corrosiveness and high viscosity. Therefore, in this study, an experiment was conducted to use biodiesel fuel to solve these problems, and the characteristics of combustion and emission were evaluated according to the use of biodiesel blended with diesel fuel and it was compared with diesel fuel. As a result, we found that biodiesel has benefits of reduction in CO2 and PM emissions compared to diesel fuel. Keywords Biodiesel
Spray visualization Common rail Soybean Canola
1 Introduction Environmental pollution has been intensified by increasing CO2 and harmful emissions which are generated from vehicles and industry facilities. In addition, risk of energy depletion has been raised rapidly caused by increasing energy
F2012-A03-021 J.-W. Kim (&) H.-I. Kim Y.-J. Kim K.-H. Lee Department of Mechanical Engineering, Hanyang University, Seoul, Republic of Korea e-mail: [email protected]
SAE-China and FISITA (eds.), Proceedings of the FISITA 2012 World Automotive Congress, Lecture Notes in Electrical Engineering 189, DOI: 10.1007/978-3-642-33841-0_42, Springer-Verlag Berlin Heidelberg 2013
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demand of developing countries such as China and India. Up to now, most of the energies for transportation and production of electricity depend on fossil fuel. For these reasons, research on alternative energies is very important to save consumption of fossil fuel. Recently, biodiesel is spotlighting as one of the alternative energies. Since the characteristics of biodiesel are similar to diesel fuel and it is extracted through chemical process from the fat of animal or plant such as canola or soybean, the biodiesel has many merits to be used instead of fossil fuel. First, risk of the fuel depletion is very low because biodiesel is renewable to be produced continuously. Second, most of the harmful emission is exhausted in a lower level. Finally, greenhouse gas can be reduced by absorption of CO2 in the Photosynthesis during the growth of the plant. For these reason, the use of biodiesel have been increased continuously [2]. In this study, we used canola and soybean to produce biodiesel. To analyze characteristic according to mixing ratio, we carried out the injection and engine tests. In the injection quantity test, we investigated the different characteristics between diesel fuel and biodiesel to consider the suitability for engine test. Then, we conducted engine performance experiment to analyze the combustion and emission ch
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