بررسی تاثیر استفاده از سامانه بازخورانی گازهای خروجی و سوخت بیودیزل بر پارامترهای احتراقی، دوده و آلاینده NOx یک موتور اشتعال تراکمی

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشگاه تربیت مدرس

2 استاد، مکانیک بیوسیستم، دانشگاه تربیت مدرس، تهران

چکیده

در این تحقیق، تاثیر استفاده از یک سامانه EGR بر پارامترهای احتراقی و آلاینده­های NOx و دوده در یک موتور با سوخت بیودیزل بررسی شد. بدین منظور، از یک موتور اشتعال تراکمی تحقیقاتی، دو نوع سوخت دیزل خالص و مخلوط دیزل و بیودیزل (B20)، سه نسبت EGR (0، 10 و 25 درصد) و سه بار 7، 14 و Nm 21 استفاده شد. سوخت مورد استفاده سوخت بیودیزل حاصل از روغن پسماند بود. نتایج حاصل از تحقیق نشان داد که افزودن سوخت بیودیزل به سوخت دیزل به میزان کمی موجب افزایش فشار بیشینه درون سیلندر شد. بیشترین افزایش فشار بیشینه، به­دلیل استفاده از سوخت بیودیزل برابر با 97/1 درصد بود. با افزایش نسبت EGR، فشار بیشینه درون سیلندر کاهش یافت. مقدار تاخیر در اشتعال برای سوخت B20 کمتر از سوخت دیزل خالص بود. بیشترین مقدار کاهش تاخیر در اشتعال برابر با 3/7 درصد بود. با افزایش نسبت EGR دمای بیشینه درون سیلندر کاهش یافت. به­طورکلی، افزایش نسبت EGR موجب کاهش مقدار بیشینه نرخ آزادسازی گرما شد. با افزایش نسبت EGR مقدار آلاینده  خروجی موتور برای هر دو نوع سوخت استفاده­شده کاهش یافت.

کلیدواژه‌ها

موضوعات


  1. S. M. Palash, M. A. Kalam, H. H. Masjuki, B. M. Masum, I. M. Rizwanul Fattah and M. Mofijur, “Impacts of biodiesel combustion on NOx emissions and their reduction approaches,” Renewable and Sustainable Energy Reviews, 23, 2013, pp. 473-490.
  2. M. Mofijur, H. H. Masjuki, M. A. Kalam, A. E. Atabani, M. Shahabuddin, S. M. Palash and et al., “Effect of biodiesel from various feedstocks on combustion characteristics, engine durability and materials compatibility: A review,” Renewable and Sustainable Energy Reviews, 28, 2013, pp. 441-455.
  3. S. I. Raptotasios, N. F. Sakellaridis, R. G. Papagiannakis and D. T. Hountalas, “Application of a multi-zone combustion model to investigate the NOx reduction potential of two-stroke marine diesel engines using EGR,” Applied Energy, 157, 2015, pp.814-823.
  4. M. Zheng, G. T. Reader and J. G. Hawley, “Diesel engine exhaust gas recirculation-a review on advanced and novel concepts,” Energy Conversion and Management, 45, 2004, pp. 883-900.
  5. D. Pierpont, D. Montgomery and R. D. Reitz, “Reducing particulate and NOx using multiple injections and EGR in a DI diesel,” SAE Technical Paper 950217, 1995.
  6. C. Arcoumanis, C. Bae, R. Crookes and E. Kinoshita, ‘The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review,” Fuel, 87, 2008, pp. 1014-1030.
  7. R. C. Yu and S. M. Shahed, “Effects of injection timing and exhaust gas recirculation on emissions from a DI diesel engine,” SAE Prepr 811234, 1981.
  8. Y. L. Qi, L. C. Dong, H. Liu, P. V. Puzinauskas, and K. C. Midkiff, “Optimization of intake port design for SI engine,” International Journal of Automotive Technology, 13, 2012, pp. 861-872, pp. 291-296.
  9. H. Feng, Z. Zheng, M. Yao, G. Cheng, M. Wang and X. Wang, “Effects of exhaust gas recirculation on low temperature combustion using wide distillation range diesel,” Energy, 51, 2013, pp. 291-296.
  10. P. Soltani, H. Haji agha alizadeh, H. Poorvousooghi Gargari and H. Faridi, “Evaluate the effect of biodiesel and EGR system on diesel engine emissions,” Journal of Engine Research, 42, 2016, pp. 23-32..
  11. S. Ohigashi, H. Kuroda, Y. Nakajima, Y. Hayashi and K. Sugihara, “Heat capacity changes predict nitrogen oxides reduction by exhaust gas recirculation,” SAE Technical Paper 710010, 1971.
  12. J. B. Heywood, Internal Combustion Engine Fundamentals, Mcgraw-hill, New York, 1988.
  13. C. S. Lee, S. W. Park and S. I. Kwon, “An experimental study on the atomization and combustion characteristics of biodiesel-blended fuels,” Energy & Fuels, 19, 2005, pp. 2201-2208.
  14. P. K. Sahoo and L. M. Das, “Combustion analysis of Jatropha, Karanja and Polanga based biodiesel as fuel in a diesel engine,” Fuel, 88, 2009, pp. 994-999.
  15. D. H. Qi, H. Chen, L. M. Geng and Y. Z. Bian, “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.
  16. X. Lu, J. Ma, L. Ji and Z. Huang, “Simultaneous reduction of NOx emission and smoke opacity of biodiesel-fueled engines by port injection of ethanol,” Fuel, 87, 2008, pp. 1289-1296.
  17. M. Lapuerta, O. Armas and J. Rodriguezfernandez, “Effect of biodiesel fuels on diesel engine emissions,” Progress in Energy and Combustion Science, 34, 2008, pp. 198-223.
  18. M. Bennett, J. Volckens, R. Stanglmaier, A. P. McNichol, W. D. Ellenson and C. W. Lewis, “Biodiesel effects on particulate radiocarbon (14C) emissions from a diesel engine,” Journal of Aerosol Science, 39, 2008, pp. 667-678.
  19. A. Senatore, M. Cardone, V. Rocco and M. V. Prati, “A comparative analysis of combustion process in DI diesel engine fueled with biodiesel and diesel fuel,” SAE Technical Paper 0148-7191, 2000.
  20. M. Canakci and J. H. Van Gerpen, “Comparison of engine performance and emissions for petroleum diesel fuel, yellow grease biodiesel and soybean oil biodiesel,” Transactions of the ASAE, 46, 2003, pp. 937-944.
  21. A. Monyem and J. H. Van Gerpen, “The effect of biodiesel oxidation on engine performance and emissions,” Biomass and Bioenergy, 20, 2001, pp. 317-325.
  22. G. L. N. Rao, S. Sampath and K. Rajagopal, “Experimental studies on the combustion and emission characteristics of a diesel engine fuelled with used cooking oil methyl ester and its diesel blends,” International Journal Engineering and Applied Sciences, 4, 2008, pp. 64-70.
  23. A. N. Ozsezen and M. Canakci, “The emission analysis of an IDI diesel engine fueled with methyl ester of waste frying palm oil and its blends,” Biomass and Bioenergy, 34, 2010, pp. 1870-1878.
  24. A. N. Ozsezen, M. Canakci, A. Turkcan and C. Sayin, “Performance and combustion characteristics of a DI diesel engine fueled with waste palm oil and canola oil methyl esters,” Fuel, 88, 2009, pp. 629-636.
  25. A. Dhar and A. K. Agarwal, “Performance, emissions and combustion characteristics of Karanja biodiesel in a transportation engine,” Fuel, 119, 2014, pp. 70-80.
  26. A. Ibrahim, “Performance and combustion characteristics of a diesel engine fuelled by butanol-biodiesel-diesel blends,” Applied Thermal Engineering, 103, 2016, pp. 651-659.
  27. D. Qi, M. Leick, Y. Liu and C. f. F. Lee, “Effect of EGR and injection timing on combustion and emission characteristics of split injection strategy DI-diesel engine fueled with biodiesel,” Fuel, 90, 2011, pp. 1884-1891.
  28. L. Zhu, C. S. Cheung, W. G. Zhang and Z. Huang, “Combustion, performance and emission characteristics of a DI diesel engine fueled with ethanol–biodiesel blends,” Fuel, 90, 2011, pp. 1743-1750.
  29. O. Özener, L. Yüksek, A. T. Ergenç and M. Özkan, “Effects of soybean biodiesel on a DI diesel engine performance, emission and combustion characteristics,” Fuel, 115, 2014, pp. 875-883.
  30. M. ElAdawy, A. Ibrahim and M. ElKassaby, “An experimental evaluation of using waste cooking oil biodiesel in a diesel engine,” Energy Technology, 1, 2013, pp. 726-734.
  31. V. Pradeep and R. P. Sharma, “Use of HOT EGR for NOx control in a compression ignition engine fuelled with bio-diesel from Jatropha oil,” Renewable Energy, 32, 2007, pp. 1136-1154.
  32. A. Abu-Jrai, J. Rodríguez-Fernández, A. Tsolakis, A. Megaritis, K. Theinnoi, R. F. Cracknell and et al., “Performance, combustion and emissions of a diesel engine operated with reformed EGR. Comparison of diesel and GTL fuelling,” Fuel, 88, 2009, pp. 1031-1041.
  33. E. Buyukkaya, “Effects of biodiesel on a DI diesel engine performance, emission and combustion characteristics,” Fuel, 89, 2010, pp. 3099-3105.
  34. Z. Wang, L. Li, J. Wang, and R. D. Reitz, “Effect of biodiesel saturation on soot formation in diesel engines,” Fuel, 175, 2016, pp. 240-248.
  35. A. I. Khuri and S. Mukhopadhyay, “Response surface methodology,” Wiley Interdisciplinary Reviews, Computational Statistics, 2, No. 2, 2010, pp. 128-149.
  36. Ö. Can, E. Öztürk, H. Solmaz, F. Aksoy, C. Çinar, and H. S. Yücesu, “Combined effects of soybean biodiesel fuel addition and EGR application on the combustion and exhaust emissions in a diesel engine,” Applied Thermal Engineering, 95, 2016, pp. 115-124.