Assessment of energy performance and air pollutant emissions in a diesel engine generator fueled wit

Biomass based oxygenated fuels have been identified as possible replacement of fossil fuel due to pollutant emission reduction and decrease in over-reliance on fossil fuel energy. In this study, 4v% water-containing ethanol was mixed with (65–90%) diesel using (5–30%) biodiesel (BD) and 1v% butanol as stabilizer and co-solvent respectively. The fuels were tested against those of biodiesel–diesel fuel blends to investigate the effect of addition of water-containing ethanol for their energy efficiencies and pollutant emissions in a diesel-fueled engine generator. Experimental results indicated that the fuel blend mix containing 4v% of water-containing ethanol, 1v% butanol and 5–30v% of biodiesel yielded stable blends after 30 days standing. BD1041 blend of fuel, which composed of 10v% biodiesel, 4v% of water-containing ethanol and 1v% butanol demonstrated −0.45 to 1.6% increase in brake-specific fuel consumption (BSFC, mLkW−1h−1) as compared to conventional diesel. The better engine performance of BD1041 was as a result of complete combustion, and lower reaction temperature based on the water cooling effect, which reduced emissions to 2.8–6.0% for NOx, 12.6–23.7% particulate matter (PM), 20.4–23.8% total polycyclic aromatic hydrocarbons (PAHs), and 30.8–42.9% total BaPeq between idle mode and 3.2kW power output of the diesel engine generator. The study indicated that blending diesel with water-containing ethanol could achieve the goal of more green sustainability.

[1]  M. Rhead,et al.  The sources of polycyclic aromatic compounds in diesel engine emissions , 2003 .

[2]  Daniel L. Flowers,et al.  Improving Ethanol Life Cycle Energy Efficiency by Direct Utilization of Wet Ethanol in HCCI Engines , 2007 .

[3]  Gang Lv,et al.  Carbonyl compound emissions from a heavy-duty diesel engine fueled with diesel fuel and ethanol-diesel blend. , 2010, Chemosphere.

[4]  Hüseyin Aydın,et al.  Performance and emission evaluation of a CI engine fueled with preheated raw rapeseed oil (RRO)–diesel blends , 2010 .

[5]  Cristian Carraretto,et al.  Biodiesel as alternative fuel: Experimental analysis and energetic evaluations , 2004 .

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

[7]  Perng-Jy Tsai,et al.  Approach for energy saving and pollution reducing by fueling diesel engines with emulsified biosolution/ biodiesel/diesel blends. , 2008, Environmental science & technology.

[8]  Zuohua Huang,et al.  Experimental investigation on regulated and unregulated emissions of a diesel engine fueled with ultra-low sulfur diesel fuel blended with biodiesel from waste cooking oil. , 2009, The Science of the total environment.

[9]  Özer Can,et al.  Effects of ethanol addition on performance and emissions of a turbocharged indirect injection Diesel engine running at different injection pressures , 2004 .

[10]  Lilian L. N. Guarieiro,et al.  Emission profile of 18 carbonyl compounds, CO, CO2, and NOx emitted by a diesel engine fuelled with diesel and ternary blends containing diesel, ethanol and biodiesel or vegetable oils , 2009 .

[11]  Chao He,et al.  Characteristics of polycyclic aromatic hydrocarbons emissions of diesel engine fueled with biodiesel and diesel , 2010 .

[12]  G. Vaitilingom,et al.  Interest of combining an additive with diesel–ethanol blends for use in diesel engines , 2001 .

[13]  Tser-Son Wu,et al.  Comparison of PAH and regulated harmful matter emissions from biodiesel blends and paraffinic fuel blends on engine accumulated mileage test , 2006 .

[14]  P. Tsai,et al.  A comparison on the emission of polycyclic aromatic hydrocarbons and their corresponding carcinogenic potencies from a vehicle engine using leaded and lead-free gasoline. , 2001, Environmental health perspectives.

[15]  M. Maricq.  Chemical characterization of particulate emissions from diesel engines: A review , 2007 .

[16]  R. B. Anand,et al.  Combustion Characteristics of Diesohol Using Biodiesel as an Additive in a Direct Injection Compression Ignition Engine under Various Compression Ratios , 2009 .

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

[18]  Shijin Shuai,et al.  The effect of ethanol blended diesel fuels on emissions from a diesel engine , 2003 .

[19]  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.

[20]  Prommes Kwanchareon,et al.  Solubility of a diesel-biodiesel-ethanol blend, its fuel properties, and its emission characteristics from diesel engine , 2007 .

[21]  Tsung-Lin Wu,et al.  PAH emission from a gasoline‐powered engine , 1996 .

[22]  Wen-Jhy Lee,et al.  Energy Savings and Emission Reduction of Nitrogen Oxides, Particulate Matter, and Polycyclic Aromatic Hydrocarbons by Adding Water-Containing Acetone and Neat Soybean Oil to a Diesel-Fueled Engine Generator , 2010 .

[23]  Zuohua Huang,et al.  Comparison of the effect of biodiesel-diesel and ethanol-diesel on the gaseous emission of a direct-injection diesel engine , 2009 .

[24]  José Ricardo Sodré,et al.  Hydrous ethanol vs. gasoline-ethanol blend: Engine performance and emissions , 2010 .

[25]  Milford A. Hanna,et al.  Alternative diesel fuels from vegetable oils , 1994 .

[26]  Wen-Jhy Lee,et al.  Impact of using fishing boat fuel with high poly aromatic content on the emission of polycyclic aromatic hydrocarbons from the diesel engine , 2006 .

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

[28]  C. Lee,et al.  Experimental Studies of a Naturally Aspirated, DI Diesel Engine Fuelled with Ethanol−Biodiesel−Water Microemulsions , 2010 .

[29]  M. Canakci,et al.  Combustion characteristics of a turbocharged DI compression ignition engine fueled with petroleum diesel fuels and biodiesel. , 2007, Bioresource technology.

[30]  Wen-Jhy Lee,et al.  PAH characteristics in the ambient air of traffic-source , 1995 .

[31]  Samuel H. Yalkowsky,et al.  Solubility and Solubilization in Aqueous Media , 1999 .

[32]  D. Aranda,et al.  Action Principles of Cosolvent Additives in Ethanol−Diesel Blends: Stability Studies , 2009 .

[33]  Hong He,et al.  Selective catalytic reduction of NOx over Ag/Al2O3 catalyst: from reaction mechanism to diesel engine test , 2005 .

[34]  Dimitrios C. Rakopoulos,et al.  Effects of ethanol-diesel fuel blends on the performance and exhaust emissions of heavy duty DI diesel engine , 2008 .

[35]  Hsi-Hsien Yang,et al.  PAH emissions influenced by Mn-based additive and turbocharging from a heavy-duty diesel engine , 1998 .

[36]  Avinash Kumar Agarwal,et al.  Experimental investigation of control of NOx emissions in biodiesel-fueled compression ignition engine , 2006 .

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

[38]  Xianming Shi,et al.  Emission characteristics using methyl soyate-ethanol-diesel fuel blends on a diesel engine , 2005 .

[39]  Reyes García-Contreras,et al.  Effect of Ethanol on Blending Stability and Diesel Engine Emissions , 2009 .

[40]  Juan J. Hernández,et al.  An experimental study of the influence of biofuel origin on particle-associated PAH emissions , 2010 .

[41]  Hiroshi Yamasaki,et al.  Recent advances in the combustion of water fuel emulsion , 2002 .

[42]  Irshad Ahmed,et al.  Oxygenated Diesel: Emissions and Performance Characteristics of Ethanol-Diesel Blends in CI Engines , 2001 .