Analysis of Particulate Matter (PM) Emissions in Diesel Engines Using Palm Oil Biodiesel Blended with Diesel Fuel

This study has focused on the PM emissions of diesel engines. Diesel engines are attractive power units that are used widely in many fields and have become one of the larger contributors of total petroleum consumption. However, diesel engines are among the main contributors of emissions into the air, especially particulate matter (PM) and nitrogen oxides (NOx). PM is one of the major pollutants emitted by diesel engines and has adverse effects on human health. Accordingly, many studies have been conducted to find alternative fuels that are clean and efficient. Biodiesel, which produces less PM than diesel fuel, is preferred as an alternative source for diesel engines. Therefore, using palm oil methyl ester (POME) for diesel engines would be a more economical and sustainable solution. This study has focused on the PM emissions of diesel engines fuelled by a diesel and POME blend (B5, B10, B20, and B100). A comparison between diesel and the POME blend has been made which involves PM mass concentration and its components (soluble organic fraction (SOF) and dry soot (DS)). Combustion characteristics, such as in-cylinder pressure and rate of heat release of the engine, as well as gaseous emissions, have also been observed at different operating engine loads (0.05 MPa 20%, 0.4 MPa 40%, and 0.7 MPa 60%). The results show that PM emissions of B100 are lower than those of diesel fuel owing to the oxygen content of POME. With regard to the SOF concentration, B100 has a higher SOF value than diesel fuel at all engine loads. Meanwhile, the DS for B100 is lower than that of diesel fuel. Moreover, as the engine load increased, PM and SOF concentrations increased, while DS concentration decreased. The observation of in-cylinder pressure showed that the increment of pressure with the increasing POME blend, as well as the increasing engine load due to the high cetane number for B100, led to a short ignition delay. The engine brake thermal efficiency between the POME blend and mineral diesel was comparable. Furthermore, B100 fuels showed lower engine power at higher brake-specific fuel consumption compared to other tested fuels. In terms of gaseous emissions, increasing POME blends led to an increase in NOx emissions. Meanwhile, as the engine load increased, NOx also continued to increase. The effect of the POME blend on the PM-NOx trade-off observation showed that B100 simultaneously increased the NOx and decreased the PM emissions. It can be concluded that POME creates a lower PM concentration while giving some negative feedback to NOx.

[1]  Vittorio Rocco,et al.  A Comparative Analysis of Combustion Process in D.I. Diesel Engine Fueled with Biodiesel and Diesel Fuel , 2000 .

[2]  Özer Can.  Combustion characteristics, performance and exhaust emissions of a diesel engine fueled with a waste cooking oil biodiesel mixture , 2014 .

[3]  Noboru Miyamoto,et al.  Smokeless, Low NOx, High Thermal Efficiency, and Low Noise Diesel Combustion with Oxygenated Agents as Main Fuel , 1998 .

[4]  Gordon E. Andrews,et al.  The Influence of Nozzle Sac Volume on the Composition of Diesel Particulate Fuel Derived SOF , 1992 .

[5]  S. Kent Hoekman,et al.  Review of the effects of biodiesel on NOx emissions , 2012 .

[6]  Talal Yusaf,et al.  Influence of Chemical Blends on Palm Oil Methyl Esters’ Cold Flow Properties and Fuel Characteristics , 2014 .

[7]  M. Lapuerta,et al.  Thermogravimetric analysis of diesel particulate matter , 2007 .

[8]  Richard Stone,et al.  Introduction to Internal Combustion Engines , 1985, Internal Combustion Engines.

[9]  Mustafa Canakci,et al.  The impact of fuel injection pressure on the exhaust emissions of a direct injection diesel engine fueled with biodiesel–diesel fuel blends , 2012 .

[10]  R. Manimaran,et al.  DIESEL ENGINE EMISSIONS AND AFTER TREATMENT TECHNIQUES-A REVIEW , 2012 .

[11]  K. Karuppasamy,et al.  A test on DI diesel engine fueled with methyl esters of used palm oil , 2012 .

[12]  Selmo Q. Almeida,et al.  Characterization of beef tallow biodiesel and their mixtures with soybean biodiesel and mineral diesel fuel. , 2010 .

[13]  Susan T. Bagley,et al.  A review of diesel particulate control technology and emission effects , 1994 .

[14]  Francesca Dominici,et al.  Coarse particulate matter air pollution and hospital admissions for cardiovascular and respiratory diseases among Medicare patients. , 2008, JAMA.

[15]  D. Montalvo,et al.  The Effect of Oxygenated Fuels on Emissions from a Modern Heavy-Duty Diesel Engine , 1993 .

[16]  H. Burtscher.  Physical characterization of particulate emissions from diesel engines: a review , 2005 .

[17]  Peter Eastwood,et al.  Particulate Emissions from Vehicles , 2008 .

[18]  T. Elango,et al.  Investigation of emissions and combustion characteristics of a CI engine fueled with waste cooking oil methyl ester and diesel blends , 2014 .

[19]  DV Bates,et al.  A Look Back at the London Smog of 1952 and the Half Century Since , 2002, Environmental Health Perspectives.

[21]  Octavio Armas,et al.  Diesel emissions from biofuels derived from Spanish potential vegetable oils , 2005 .

[22]  Keat Teong Lee,et al.  Malaysian palm oil: Surviving the food versus fuel dispute for a sustainable future , 2009 .

[23]  A. N. Ozsezen,et al.  Determination of performance and combustion characteristics of a diesel engine fueled with canola and waste palm oil methyl esters , 2011 .

[24]  Mohd Hafizil Mat Yasin,et al.  Characterization of a diesel engine operating with a small proportion of methanol as a fuel additive in biodiesel blend , 2014 .

[25]  Jian Hou,et al.  Life cycle assessment of biodiesel from soybean, jatropha and microalgae in China conditions , 2011 .

[26]  N. B. Mclaughlin,et al.  Fuel efficiency and exhaust emissions for biodiesel blends in an agricultural tractor. , 2006 .

[27]  Zuohua Huang,et al.  Experimental study on particulate emission of a diesel engine fueled with blended ethanol–dodecanol–diesel , 2009 .

[28]  Wen Tong Chong,et al.  Engine performance and emissions using Jatropha curcas, Ceiba pentandra and Calophyllum inophyllum biodiesel in a CI diesel engine , 2014 .

[29]  M. G. Kontominas,et al.  Transesterification of soybean frying oil to biodiesel using heterogeneous catalysts , 2009 .

[30]  Jitendra N. Gangwar,et al.  Composition and comparative toxicity of particulate matter emitted from a diesel and biodiesel fuelled CRDI engine , 2012 .

[31]  Lilian L. N. Guarieiro,et al.  The Role of Additives for Diesel and Diesel Blended (Ethanol or Biodiesel) Fuels: A Review , 2007 .

[32]  Varun,et al.  Performance and emission characteristics of biodiesel from different origins: A review , 2013 .

[33]  Barat Ghobadian,et al.  Diesterol: An environment-friendly IC engine fuel , 2009 .

[34]  Haji Hassan Masjuki,et al.  Impacts of NOx reducing antioxidant additive on performance and emissions of a multi-cylinder diesel engine fueled with Jatropha biodiesel blends. , 2014 .

[35]  Octavio Armas,et al.  Effect of alternative fuels on exhaust emissions during diesel engine operation with matched combustion phasing , 2010 .

[36]  I. Hong,et al.  Optimum process and energy density analysis of canola oil biodiesel synthesis , 2010 .

[37]  Hwai Chyuan Ong,et al.  Life cycle cost and sensitivity analysis of palm biodiesel production , 2012 .

[38]  A. Tsolakis,et al.  Engine performance and emissions of a diesel engine operating on diesel-RME (rapeseed methyl ester) blends with EGR (exhaust gas recirculation) , 2007 .

[39]  Ekrem Buyukkaya,et al.  Effects of biodiesel on a DI diesel engine performance, emission and combustion characteristics , 2010 .

[40]  Dennis Schuetzle,et al.  Thermogravimetry of filter-borne diesel particulates , 1990 .

[41]  Adolph Nägel,et al.  THE DIESEL ENGINE , 2009 .

[42]  K. Krisnangkura.  A simple method for estimation of cetane index of vegetable oil methyl esters , 1986 .

[43]  Rsg Rik Baert,et al.  Oxygenated fuels for clean heavy duty engines , 2004 .

[44]  Hee-Yong Shin,et al.  Statistical optimization for biodiesel production from rapeseed oil via transesterificaion in supercritical methanol , 2012 .

[45]  Haji Hassan Masjuki,et al.  A comprehensive review on biodiesel as an alternative energy resource and its characteristics , 2012 .

[46]  Wang Jian-xin,et al.  Study on combustion characteristics and PM emission of diesel engines using ester–ethanol–diesel blended fuels , 2007 .

[47]  Willard W. Pulkrabek,et al.  Engineering Fundamentals of the Internal Combustion Engine , 1997 .

[48]  Ronald D Matthews,et al.  Combustion and emission characteristics of ethanol–biodiesel–water micro-emulsions used in a direct injection compression ignition engine , 2010 .

[49]  Z. Bai,et al.  Chemical characteristics of particulate matter emitted from a heavy duty diesel engine and correlation among inorganic and PAH components , 2014 .

[50]  David M. Brown,et al.  Size-dependent proinflammatory effects of ultrafine polystyrene particles: a role for surface area and oxidative stress in the enhanced activity of ultrafines. , 2001, Toxicology and applied pharmacology.

[51]  L. Guarieiro,et al.  Acetaldehyde and formaldehyde concentrations from sites impacted by heavy-duty diesel vehicles and their correlation with the fuel composition: Diesel and diesel/biodiesel blends , 2012 .

[52]  L. Das,et al.  Combustion analysis of Jatropha, Karanja and Polanga based biodiesel as fuel in a diesel engine , 2009 .

[53]  T. Muneer,et al.  Energy supply, its demand and security issues for developed and emerging economies , 2007 .

[54]  L. Krause,et al.  Tallow Biodiesel: Properties Evaluation and Consumption Tests in a Diesel Engine , 2008 .

[55]  Forage turnip, sunflower, and soybean biodiesel obtained by ethanol synthesis: Production protocols and thermal behavior , 2010 .

[56]  Yonggyu Lee,et al.  Emission characteristics of diesel, gas to liquid, and biodiesel-blended fuels in a diesel engine for passenger cars , 2010 .

[57]  Ayhan Demirbas,et al.  Biodiesel: A Realistic Fuel Alternative for Diesel Engines , 2007 .

[58]  Dipankar Dwivedi,et al.  Particulate emission characterization of a biodiesel vs diesel-fuelled compression ignition transport engine: A comparative study , 2006 .

[59]  Octavio Armas,et al.  Effect of biodiesel fuels on diesel engine emissions , 2008 .

[60]  W. Kreyling,et al.  Translocation of Inhaled Ultrafine Particles to the Brain , 2004, Inhalation toxicology.