A study on alcohol acid compound mixed with biodiesel as alternative biofuel for diesel engine

In order to reduce the harmful effects on the environment, researchers around the world must find ways to reduce emissions. For this reason, the EU allows the use of biofuel mixtures as fuel for internal combustion engines.
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A study on alcohol acid compound mixed with biodiesel as alternative biofuel for diesel engine International Journal of Mechanical Engineering and Technology (IJMET) Volume 10, Issue 03, March 2019, pp. 392–403, Article ID: IJMET_10_03_040 Available online at http://www.iaeme.com/ijmet/issues.asp?JType=IJMET&VType=10&IType=3 ISSN Print: 0976-6340 and ISSN Online: 0976-6359 © IAEME Publication Scopus Indexed A STUDY ON ALCOHOL ACID COMPOUND MIXED WITH BIODIESEL AS ALTERNATIVE BIOFUEL FOR DIESEL ENGINE Chang Chun Xu and Haeng Muk Cho Division of Mechanical and Automotive Engineering, Kongju National University (KUN) 275, Budae-dong, Cheonan-si, Chungcheongnam-do 331-717, South Korea ABSTRACT In order to reduce the harmful effects on the environment, researchers around the world must find ways to reduce emissions. For this reason, the EU allows the use of biofuel mixtures as fuel for internal combustion engines. Therefore, an alternative has been made in this study. Since biodiesel is used in experiments for the effect of internal combustion engines on emission concentrations, it shows uncertain results. Due to the performance of biofuels, such as combustion delays, injection times, fuel types, etc., for this reason, researchers have tried to add some alcohol compounds to biofuels for investigation. Because biodiesel type of biofuel material has some FAME (fatty acid methyl ester), it has some effects, such as high density and low calorific value, although it has better emissions and reduced lubricity compared to pure diesel. But if biofuel additives and alcoholic acid compounds affect the biofuel diesel ratio and diesel injection time on combustion, performance and emissions. In this paper, emissions of CO, CO2, NOX and unburned hydrocarbons are measured. Key words: Alcoholic Acid Compound, Internal combustion engine, Exhaust emission, Performance and Biofuel. Cite this Article: Chang Chun Xu, Haeng Muk Cho, A Study on Alcohol Acid Compound Mixed with Biodiesel as Alternative Biofuel for Diesel Engine, International Journal of Mechanical Engineering and Technology 10(3), 2019, pp. 392–403. http://www.iaeme.com/IJMET/issues.asp?JType=IJMET&VType=10&IType=3 1. INTRODUCTION During the operation of internal combustion diesel engines, a large amount of fossil fuel is consumed, so they pose a threat to the environment in terms of pollutant emissions. In the past few decades, the depletion and volatility of fossil fuels has led to a global concentration of energy to find and find alternative fuels. Biofuels are one of the liquid fuels that can be used in diesel engine vehicles. Whether the biofuel initially produced is produced directly from food crops by fermentation (eg bioethanol) or transesterification as biodiesel [1]. The second method of biofuel power generation is produced from agricultural products and some waste such as wood, straw, corn and specific biomass crops, thus avoiding global concerns about http://www.iaeme.com/IJMET/index.asp 392 editor@iaeme.com Chang Chun Xu, Haeng Muk Cho food prices and scarcity. Due to their source derivatives, the important role of using this biofuel can replace the petroleum fuel of internal combustion engines. Since the main advantages of biofuels are regenerability, emissions from combustion and biodegradability [2]. The use of alcohol (ethanol, methanol) and its mixture with diesel is another current research model. When mixed with diesel, the alcohol, especially ethanol, becomes a hygroscopic mixture, causing the fuel injector to become clogged. The use of biodiesel in a diesel-ethanol mixture results in no stratification, paving the way for a ternary fuel mixture known as an alcohol-diesel-biodiesel mixture, and reports many work with alcohol-diesel- biodiesel fuel mixtures [1]. Due to the high viscosity, low volatility and flammable diesel properties, it is difficult to prepare a homogeneous premixed diesel/air mixture prior to ignition. Thus conventional diesel combustion processes are mixed controlled diffusion combustion, and high NOx and particulate matter can be generated due to high temperatures and locally enriched regions that can affect engine exhaust emissions. As with the researchers, it is important that the reduction in NOX and soot emissions form a fairly uniform charge prior to ignition. Therefore, by research, alcoholic acid compounds are widely used in various alcohol substitutes because of their improved volatility and latent heat. Therefore, the mixture can be displayed in the engine as ethanol - biodiesel - diesel and methanol - biodiesel - diesel. Even though various literatures focus on the development of ternary mixtures as alternative materials, these have several disadvantages, such as phase separation, reduced calorific value of mixtures with higher ethanol concentrations, and unreliability in storage and transportation. And the use of a mixture of biodiesel can add alcohol which is very useful for reducing the viscosity and density of biodiesel, which is higher than standard mineral diesel. And when the fuel is a diesel engine, the alcohol additive increases combustion efficiency and produces lower exhaust emissions. Compared to pure diesel, the oxygen content of ethanol and methanol is about 35% and 30% higher, and due to high oxygen and high carbon number, diesel engines can help diesel engines achieve higher complete combustion, thereby reducing ignition delay. As for the combustion effect, carbon monoxide and carbon dioxide emissions can be reduced due to high oxygen [3]. Alcohol is a liquid fuel that can be used in internal combustion engines [1]. The alcohol as a fuel additive can be combined with a proportion of petroleum-based diesel, biodiesel and diesel/biodie ...