Comparison of Ethanol and Butanol as Additives in Soybean Biodiesel Using a Constant Volume Combustion Chamber

To investigate the effects of different alcohol additives in biodiesel fuel on the spray, combustion characteristics, and soot formation and oxidation, a detailed comparative study between the butanol−biodiesel blend and the ethanol−biodiesel blend was carried out in an optical constant volume combustion chamber. Two different volumetric blend fuels were tested in this study with different ambient temperatures at the start of injection (from 800 to 1200 K). The volumetric ratios were the 20% butanol/80% soybean biodiesel referred to as B20S80 and 20% ethanol/80% soybean biodiesel referred to as E20S80. Results demonstrated that the microexplosion occurred for B20S80 and E20S80 fuels at 800 and 900 K ambient temperature because of the volatility difference between the additives (butanol or ethanol) and the base fuel (biodiesel). The E20S80 fuel presented higher peak pressure and shorter combustion duration compared to the B20S80 fuel. The autoignition was earlier for the B20S80 fuel at 1000 and 1200 K ambi...

[1]  Massimo Santarelli,et al.  Energy, environmental and economic comparison of different powertrain/fuel options using well-to-wheels assessment, energy and external costs – European market analysis , 2010 .

[2]  C. Lee,et al.  Effect of Spray and EGR Rate on the Combustion and Emission Characteristics of Biodiesel Fuel in a Compression Ignition Engine , 2009 .

[3]  Dimitrios C. Rakopoulos,et al.  Comparative performance and emissions study of a direct injection Diesel engine using blends of Diesel fuel with vegetable oils or bio-diesels of various origins , 2006 .

[4]  Su Han Park,et al.  Effect of Bioethanol−Biodiesel Blending Ratio on Fuel Spray Behavior and Atomization Characteristics , 2009 .

[5]  Casimir Togbé,et al.  Experimental and Modeling Study of the Kinetics of Oxidation of Simple Biodiesel−Biobutanol Surrogates: Methyl Octanoate−Butanol Mixtures , 2010 .

[6]  Hua Zhao,et al.  Engine combustion instrumentation and diagnostics , 2001 .

[7]  Hirotatsu Watanabe,et al.  The characteristics of puffing of the carbonated emulsified fuel , 2009 .

[8]  Tiegang Fang,et al.  Bio-diesel effects on combustion processes in an HSDI diesel engine using advanced injection strategies , 2009 .

[9]  Hirotatsu Watanabe,et al.  An experimental investigation of the breakup characteristics of secondary atomization of emulsified fuel droplet , 2010 .

[10]  Kuo-Ting Wang,et al.  Atomization Characteristics of Multi-component Bio-fuel Systems under Micro-explosion Conditions , 2008 .

[11]  Ke Zeng,et al.  Determination of the laminar burning velocities for mixtures of ethanol and air at elevated temperatures , 2007 .

[12]  A. Luengnaruemitchai,et al.  Utilization of palm oil alkyl esters as an additive in ethanol–diesel and butanol–diesel blends , 2009 .

[13]  Zuohua Huang,et al.  Laminar burning velocities and flame instabilities of butanol isomers–air mixtures , 2010 .

[14]  Su Han Park,et al.  Nozzle flow and atomization characteristics of ethanol blended biodiesel fuel , 2010 .

[15]  Tiegang Fang,et al.  Biodiesel combustion in an optical HSDI diesel engine under low load premixed combustion conditions , 2009 .

[16]  Thomas A. Litzinger,et al.  EFFECTS OF DIMETHYOXYMETHANE BLENDING INTO DIESEL FUEL ON SOOT IN AN OPTICALLY ACCESSIBLE DI DIESEL ENGINE , 2006 .

[17]  Hao Chen,et al.  Combustion and performance evaluation of a diesel engine fueled with biodiesel produced from soybean crude oil , 2009 .

[18]  C. Lee,et al.  Modeling droplet breakup processes under micro-explosion conditions , 2007 .

[19]  Cumali İlkılıç,et al.  Effect of ethanol blending with biodiesel on engine performance and exhaust emissions in a CI engine , 2010 .

[20]  Reyes García-Contreras,et al.  Stability, Lubricity, Viscosity, and Cold-Flow Properties of Alcohol−Diesel Blends , 2010 .

[21]  André L. Boehman,et al.  Investigation of the Impact of Engine Injection Strategy on the Biodiesel NOx Effect with a Common-Rail Turbocharged Direct Injection Diesel Engine , 2010 .

[22]  S. D. Stasio.  Observation of restructuring of nanoparticle soot aggregates in a diffusion flame by static light scattering , 2001 .

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

[24]  L. G. Schumacher,et al.  Impact of cold flow improvers on soybean biodiesel blend , 2004 .

[25]  Lyle M. Pickett,et al.  Low flame temperature limits for mixing-controlled Diesel combustion , 2005 .

[26]  Á. Bereczky,et al.  Performance Evaluation of Fuel Blends Containing Croton Oil, Butanol, and Diesel in a Compression Ignition Engine , 2010 .

[27]  L. Kristóf,et al.  Experimental investigation of fuel properties, engine performance, combustion and emissions of blends containing croton oil, butanol, and diesel on a CI engine , 2011 .

[28]  J. P. Appleton,et al.  Shock-tube measurements of soot oxidation rates☆ , 1973 .

[29]  Hua Chen,et al.  Performance and combustion characteristics of biodiesel-diesel-methanol blend fuelled engine , 2010 .

[30]  Forward-illumination light-extinction technique for soot measurement. , 2006, Applied optics.

[31]  Antal Penninger,et al.  Examination of burning processes of regenerative liquid fuel and alcohol mixtures in diesel engine , 2006 .

[32]  N. V. Deshpande,et al.  Improving the low temperature properties of biodiesel fuel , 2009 .

[33]  Takashi Kashiwagi,et al.  Comparisons of the soot volume fraction using gravimetric and light extinction techniques , 1995 .

[34]  C. Lee,et al.  Erratum: Comparison of ethanol and butanol as additives in soybean biodiesel using a constant volume combustion chamber (Energy Fuels (2011) 25 (1837-1846)) , 2011 .

[35]  Artur Braun,et al.  Size-range analysis of diesel soot with ultra-small angle X-ray scattering , 2004 .

[36]  Lyle M. Pickett,et al.  Diagnostic considerations for optical laser-extinction measurements of soot in high-pressure transient combustion environments , 2005 .