Effects of diesel/biodiesel blends on regulated and unregulated pollutants from a passenger vehicle operated over the European and the Athens driving cycles

Abstract This paper presents the regulated and unregulated exhaust emissions of a diesel passenger vehicle, operated with low sulphur automotive diesel and soy methyl ester blends. Emission and fuel consumption measurements were conducted under real driving conditions (Athens Driving Cycle, ADC) and compared with those of a modified New European Driving Cycle (NEDC) using a chassis dynamometer. A Euro II compliant diesel vehicle was used in this study, equipped with an indirect injection diesel engine, fuelled with diesel fuel and biodiesel blends at proportions of 5, 10, and 20% respectively. Unregulated emissions of 11 polycyclic aromatic hydrocarbons (PAHs), 5 nitro-PAHs, 13 carbonyl compounds (CBCs) and the soluble organic fraction (SOF) of the particulate matter were measured. Qualitative hydrocarbon analysis was also performed on the SOF. Regulated emissions of NO x , CO, HC, CO 2 , and PM were also measured over the two test cycles. It was established that some of the emissions measured over the (hot-start) NEDC differed from the real-world cycle. Significant differences were also observed in the vehicle's fuel consumption between the two test cycles. The addition of biodiesel reduced the regulated emissions of CO, HC and PM, while an increase in NO x was observed over the ADC. Carbonyl emissions, PAHs and nitro-PAHs were reduced with the addition of biodiesel over both driving cycles.

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

[2]  Mustafa Canakci,et al.  Performance and exhaust emissions of a biodiesel engine , 2006 .

[3]  E. Tzirakis,et al.  VEHICLE EMISSIONS AND DRIVING CYCLES: COMPARISON OF THE ATHENS DRIVING CYCLE (ADC) WITH ECE-15 AND EUROPEAN DRIVING CYCLE (EDC) , 2006 .

[4]  E. Tzirakis,et al.  Diesel/Soy Methyl Ester Blends Emissions Profile from a Passenger Vehicle Operated on the European and the Athens Driving Cycles , 2007 .

[5]  Hsi-Hsien Yang,et al.  Effects of the biodiesel blend fuel on aldehyde emissions from diesel engine exhaust , 2008 .

[6]  Robert L. McCormick,et al.  Evaluation of formulation strategies to eliminate the biodiesel NOx effect , 2005 .

[7]  Patrick Debal,et al.  Comparison of on-road emissions with emissions measured on chassis dynamometer test cycles , 2006 .

[8]  S. Jayaraj,et al.  Performance and emission evaluation of a diesel engine fueled with methyl esters of rubber seed oil , 2005 .

[9]  Wen-Jhy Lee,et al.  PAH emissions and energy efficiency of palm-biodiesel blends fueled on diesel generator , 2006 .

[10]  J. V. Gerpen,et al.  The effect of biodiesel oxidation on engine performance and emissions , 2001 .

[11]  S. W. Lee,et al.  Emission reduction potential from the combustion of soy methyl ester fuel blended with petroleum distillate fuel , 2004 .

[12]  O. M. I. Nwafor,et al.  Emission characteristics of diesel engine operating on rapeseed methyl ester , 2004 .

[13]  E. R. Jayaratne,et al.  Effect of fuel composition and engine operating conditions on polycyclic aromatic hydrocarbon emissions from a fleet of heavy-duty diesel buses , 2005 .

[14]  Robert Joumard,et al.  Real-world European driving cycles, for measuring pollutant emissions from high- and low-powered cars , 2006 .

[15]  G. Labeckas,et al.  THE EFFECT OF RAPESEED OIL METHYL ESTER ON DIRECT INJECTION DIESEL ENGINE PERFORMANCE AND EXHAUST EMISSIONS , 2006 .

[16]  Susan T. Bagley,et al.  EFFECTS OF AN OXIDATION CATALYTIC CONVERTER AND A BIODIESEL FUEL ON THE CHEMICAL, MUTAGENIC, AND PARTICLE SIZE CHARACTERISTICS OF EMISSIONS FROM A DIESEL ENGINE , 1998 .

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

[18]  M. P. Dorado,et al.  Testing Waste Olive Oil Methyl Ester as a Fuel in a Diesel Engine , 2003 .

[19]  Sergio Machado Corrêa,et al.  Aromatic hydrocarbons emissions in diesel and biodiesel exhaust , 2006 .

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

[21]  S. Fernando,et al.  NOx Reduction from Biodiesel Fuels , 2006 .

[22]  Stuart J Day,et al.  Effects of vehicle type and fuel quality on real world toxic emissions from diesel vehicles , 2008 .

[23]  Leonidas Ntziachristos,et al.  Effects of a catalysed and an additized particle filter on the emissions of a diesel passenger car operating on low sulphur fuels , 2005 .

[24]  Shijin Shuai,et al.  Characteristics of carbonyl compounds emission from a diesel-engine using biodiesel–ethanol–diesel as fuel , 2006 .

[25]  Vittorio Rocco,et al.  Brassica carinata as an alternative oil crop for the production of biodiesel in Italy: agronomic evaluation, fuel production by transesterification and characterization , 2003 .

[26]  Cristina Pronello,et al.  RELATIVE INFLUENCE OF ACCELERATION AND SPEED ON EMISSIONS UNDER ACTUAL DRIVING CONDITIONS. , 1997 .

[27]  Hsi-Hsien Yang,et al.  Characteristics of trans,trans-2,4-decadienal and polycyclic aromatic hydrocarbons in exhaust of diesel engine fueled with biodiesel , 2007 .

[28]  Chang-Tang Chang,et al.  Combustion characteristics of waste-oil produced biodiesel/diesel fuel blends , 2007 .

[29]  Hong Huo,et al.  Characterization of vehicle driving patterns and development of driving cycles in Chinese cities , 2008 .

[30]  M. Gambino,et al.  Emission comparison of urban bus engine fueled with diesel oil and 'biodiesel' blend. , 2004, The Science of the total environment.

[31]  T. W. Ryan,et al.  Exhaust Emissions of Biodiesel, Petrodiesel, Neat Methyl Esters, and Alkanes in a New Technology Engine† , 2006 .

[32]  Peter Wiesen,et al.  Smog chamber studies on the influence of diesel exhaust on photosmog formation , 2002 .

[33]  Cherng-Yuan Lin,et al.  Diesel engine performance and emission characteristics of biodiesel produced by the peroxidation process , 2006 .

[34]  Hsi-Hsien Yang,et al.  Effects of biodiesel on emissions of regulated air pollutants and polycyclic aromatic hydrocarbons under engine durability testing , 2007 .

[35]  C. Nilsson,et al.  Emissions of aldehydes and ketones from a two-stroke engine using ethanol and ethanol-blended gasoline as fuel. , 2002, Environmental science & technology.

[36]  M. Graboski,et al.  Impact of biodiesel source material and chemical structure on emissions of criteria pollutants from a heavy-duty engine. , 2001, Environmental science & technology.

[37]  C. P. Lee,et al.  Development of a practical driving cycle construction methodology: A case study in Hong Kong , 2007 .

[38]  Sergio Machado Corrêa,et al.  Carbonyl emissions in diesel and biodiesel exhaust. , 2008 .

[39]  Efthimios Zervas,et al.  CO2 emissions change from the introduction of diesel passenger cars: Case of Greece , 2006 .

[40]  Shijin Shuai,et al.  Emission reduction potential of using ethanol–biodiesel–diesel fuel blend on a heavy-duty diesel engine , 2006 .

[41]  B. Buchholz,et al.  A Numerical Investigation into the Anomalous Slight NOx Increase when Burning Biodiesel: A New (Old) Theory , 2007 .

[42]  Vittorio Rocco,et al.  Brassica carinata as an alternative oil crop for the production of biodiesel in Italy: engine performance and regulated and unregulated exhaust emissions. , 2002, Environmental science & technology.