THE DETERMINATION OF OPTIMUM INJECTION PRESSURE IN AN ENGINE FUELLED WITH SOYBEAN BIODIESEL/DIESEL BLEND

Abstract

In this study, the optimum blend rate and injection pressure in a four-stroke, single cylinder, direct injection diesel engine using soybean methyl ester were investigated experimentally. The tests were conducted at two stages. Firstly, the engine was tested with diesel fuel, B25 (25% biodiesel+75% diesel fuel), B50, B75 and B100 fuels at full load and at a constant speed. According to the test results, it was determined that the most suitable fuel was B25 in terms of performance and emission. Secondly, the engine was tested at different loads with diesel fuel at original injection pressure and with B25 at different injection pressures (160, 180, 200, 220, 240 bar) for comparison. It was determined from tests performed with B25 that the most suitable injection pressure in terms of performance and emissions was 220 bar. The specific fuel consumption and power values of the B25 were found to be nearly the same as those of diesel fuel at 220 bar injection pressure. In addition, HC, CO, and smoke emissions were reduced by about 33%, 9% and 20%, respectively. On the other hand, NOx emission increased by about 12%.

Dates

  • Submission Date2012-08-07
  • Revision Date2012-12-21
  • Acceptance Date2013-01-29
  • Online Date2013-04-13

DOI Reference

10.2298/TSCI120807023C

References

  1. Samart, C., Sreetongkittikul, P., Sookman, C., Heterogeneous Catalysis of Transesterification of Soybean Oil Using KI/Mesoporous Silica, Fuel Processing Technology, 90 (2009), pp. 922-925
  2. Joshi, H., Moser, B. R., Toler, J., Walker, T., Preparation and Fuel Properties of Mixtures of Soybean Oil Methyl and Ethyl Esters, Biomass and Bioenergy, 34 (2010), pp. 14-20
  3. Gokalp, B., Buyukkaya, E., Soyhan, H. S., Performance and Emissions of a Diesel Tractor Engine Fueled with Marine Diesel and Soybean Methyl Ester, Biomass and Bioenergy, 35 (2011), 3575-3583
  4. Basha, S. A., Gopal, K. R., Jebaraj, S., A Review on Biodiesel Production, Combustion, Emissions and Performance, Renewable and Sustainable Energy Reviews, 13 (2009), pp. 1628-1634
  5. Sun, J., Caton, J. A., Jacobs, T. J., Oxides of Nitrogen Emissions from Biodiesel-Fuelled Diesel Engines, Progress in Energy and Combustion Science, 36 (2010), pp. 677-695
  6. Xue, J., Grifta, T. E., Hansen, A.C., Effect of Biodiesel on Engine Performances and Emissions, Renewable and Sustainable Energy Reviews, 15 (2011), pp. 1098-1116
  7. Altun, Ş., Gür, M. A., Bitkisel Yağların Alternatif Yakıt Olarak Dizel Motorlarında Kullanılması, Journal of Agricultural Faculty of Harran University, 9 (2005), pp. 35-42 (in Turkish).
  8. Ali, Y., Eskridge, K. M., Hanna, M. A., Testing of Alternative Diesel Fuel from Tallow and Soybean Oil in Cummins N14-410 Diesel Engine, Bioresource Technology, 53 (1995), pp. 243-254
  9. Valente, O.S., Silva, M. J., Pasa, V. M. D., Belchior, C. R. P., Sodré, J. R., Fuel Consumption and Emissions from a Diesel Power Generator Fuelled with Castor Oil and Soybean Biodiesel, Fuel 89 (2010), pp. 3637-3642
  10. Çelikten, I., Koca, A., Arslan, M. A., Comparison of Performance and Emissions of Diesel Fuel, Rapeseed and Soybean Oil Methyl Esters Injected at Different Pressures, Renewable Energy, 35 (2010), pp. 814-820
  11. Qi, D. H., Geng, L. M., Chen, H., Bian, Y. Z. H., Liu, J., Ren, X. C. H., Combustion and Performance Evaluation of a Diesel Engine Fueled with Biodiesel Produced from Soybean Crude Oil, Renewable Energy, 34 (2009), pp. 2706-2713
  12. Canakci, M., Combustion Characteristics of a Turbocharged DI Compression Ignition Engine Fueled with Petroleum Diesel Fuels and Biodiesel, Bioresource Technology, 98 (2007), pp. 1167-1175
  13. Qi, D. H., Chen, H., Geng, L. M., Bian, Y. Z. H., Experimental Studies on the Combustion Characteristics and Performance of a Direct Injection Engine Fueled with Biodiesel/Diesel Blends, Energy Conversion and Management, 51 (2010), pp. 2985-2992
  14. Sayin, C., Gumus, M., Impact of Compression Ratio and Injection Parameters on the Performance and Emissions of a DI Diesel Engine Fueled with Biodiesel-Blended Diesel Fuel, Applied Thermal Engineering, 31 (2011), pp. 3182-3188
  15. Pereira, R. G., Oliveira, C. D., Oliveira, J. L., Oliveira, C. P., Fellows, C. E., Piamba, O. E., Exhaust Emissions and Electric Energy Generation in a Stationary Engine Using Blends of Diesel and Soybean Biodiesel, Renewable Energy, 32 (2007), pp. 2453-2460
  16. Schumacher, L. G., Borgelt, S. C., Fosseen, D., Goetz, W., Hires, W. G., Heavy-Duty Engine Exhaust Emission Tests Using Methyl Ester Soybean Oil/Diesel Fuel Blends, Bioresource Technology, 57, (1996), pp. 31-36
  17. Candeia, R. A., Silva, M. C. D., Carvalho, F. J. R., Brasilino, M. G. A., Bicudo, T. C., Santos, I. M. G., Souza, A. G., Influence of Soybean Biodiesel Content on Basic Properties of Biodiesel-Diesel Blends, Fuel, 88 (2009), pp. 738-743
  18. Puhan, S., Jegan, R., Balasubbramanian, K., Nagarajan, G., Effect of Injection Pressure on Performance, Emission and Combustion Characteristics of High Linolenic Linseed Oil Methyl Ester in a DI Diesel Engine, Renewable Energy, 34 (2009), pp. 1227-1233
  19. Kegl, B., Pehan, S., Influence of Biodiesel on Injection, Fuel Spray, and Engine Characteristics, Thermal Science, 12 (2008), 2, pp. 171-182
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