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HCCI of wet ethanol on dedicated cylinder of a diesel engine using exhaust heat recovery
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 03, 2018 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Low cost ethanol with high levels of hydrations is a fuel that can be easily produced and that offers the potential to replace fossil fuels and contribute to reduce greenhouse gas emissions. However, it shows several ignition challenges depending on the hydration level, ambient temperature compression ratio and other engine-specific aspects. Advanced combustion concepts such as homogeneous charge compression ignition (HCCI) have shown to be very tolerant to the water content in the fuel due to their non-flame propagating nature. Moreover, HCCI tends to increase engine efficiency while reducing oxides of nitrogen (NOx) emissions. In this sense, the present research demonstrates the operation of a 3-cylinder power generator engine in which two cylinders operate on conventional diesel combustion (CDC) and provide recycled exhaust gas (EGR) for the last cylinder running on wet ethanol HCCI combustion. At low engine loads the cylinders operating on CDC provide high oxygen content EGR for the dedicated HCCI cylinder. At high engine loads insufficient air could be provided by the EGR from CDC and ambient air was bypassed to the HCCI cylinder. Stable HCCI operation was achieved from idle to 5 bar IMEP under different combinations of air/fuel ratio, EGR rate and ethanol-water blends. HCCI combustion could be obtained at low loads due to the heat rejection form CDC and the high stock compression ratio of 16.6:1. This compression ratio, however, provided a narrow range of operation under HCCI due to excessive rate of pressure rise. This was improved with the reduction of compression ratio to 14:1. Heat release and emission analysis were performed, and all acquired data was compared to previous results obtained with spark ignition combustion in the same dedicated cylinder of the engine. Efficiency values exceeding those of the original diesel engine were achieved while reducing NOx emissions.
- Mario Martins - Federal University of Santa Maria
- Augusto Perin - Federal University of Santa Maria
- Geovane Prante - Federal University of Santa Maria
- Douglas Pinto - Federal University of Santa Maria
- Macklini Dalla Nora - Federal University of Santa Maria
- Paulo R. M. Machado - Federal University of Santa Maria
CitationMartins, M., Perin, A., Prante, G., Pinto, D. et al., "HCCI of wet ethanol on dedicated cylinder of a diesel engine using exhaust heat recovery," SAE Technical Paper 2018-36-0191, 2018, https://doi.org/10.4271/2018-36-0191.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- D. Reay, C. Sabine, P. Smith, and G. Hymus, “Climate change 2007: spring-time for sinks.,” Nature, vol. 446, no. 7137, pp. 727-8, Apr. 2007.
- A. Bhagatwala, J. H. Chen, and T. Lu, “Direct numerical simulations of HCCI/SACI with ethanol,” Combust. Flame, vol. 161, no. 7, pp. 1826-1841, 2014.
- H. Xie, Z. Wei, B. He, and H. Zhao, “Comparison of HCCI Combustion Respectively Fueled with Gasoline, Ethanol and Methanol through the Trapped Residual Gas Strategy,” 2006, vol. 2006, no. 724.
- M. Zheng, X. Han, U. Asad, and J. Wang, “Investigation of butanol-fuelled HCCI combustion on a high efficiency diesel engine,” Energy Convers. Manag., vol. 98, pp. 215-224, Jul. 2015.
- S. Saxena, D. Vuilleumier, D. Kozarac, M. Krieck, R. Dibble, and S. Aceves, “Optimal operating conditions for wet ethanol in a HCCI engine using exhaust gas heat recovery,” Appl. Energy, vol. 116, pp. 269-277, Mar. 2014.
- J. H. Mack, D. Schuler, R. H. Butt, and R. W. Dibble, “Experimental investigation of butanol isomer combustion in Homogeneous Charge Compression Ignition (HCCI) engines,” Appl. Energy, vol. 165, pp. 612-626, Mar. 2016.
- R. K. Maurya and A. K. Agarwal, “Experimental study of combustion and emission characteristics of ethanol fuelled port injected homogeneous charge compression ignition (HCCI) combustion engine,” Appl. Energy, vol. 88, no. 4, pp. 1169-1180, Apr. 2011.
- M. Ghazikhani, M. R. Kalateh, Y. K. Toroghi, and M. Dehnavi, “An Experimental Study on the Effect of EGR and Engine Speed on CO and HC Emissions of Dual Fuel HCCI Engine,” vol. 3, no. 4, pp. 357-362, 2009.
- M. E. S. Martins, I. Fischer, A. N. Aronis, F. V. Lewisky, and D. Golke, “Conversion of a diesel engine to operate with HCCI of wet ethanol in one of the cylinders,” in ABMC Internation Congress of Mechanical Engineering, 2015, no. January 2005.
- M. Shahbakhti and C. R. Koch, “Thermo-kinetic combustion modeling of an HCCI engine to analyze ignition timing for control applications,” Spring Tech. Meet. Combust. Institute/Canadian Sect., pp. 1-7, 2007.
- T. Turányi and A. S. Tomlin, Analysis of Kinetic Reaction Mechanisms. 2014.
- B. He, H. Xie, Y. Zhang, J. Qin, and H. Zhao, “An Experimental Study on HCCI Combustion in a Four-Stroke Gasoline Engine with Reduced Valve Lift Operations,” 2005, no. 724.
- M. Martins, “Investigation of Performance and Characteristics of a Multi-Cylinder Gasoline Engine with Controlled Auto-Ignition Combustion in Naturally Aspirated and Boosted Operation,” no. August, p. 138, 2007.
- J. H. Mack, S. M. Aceves, and R. W. Dibble, “Demonstrating direct use of wet ethanol in a homogeneous charge compression ignition (HCCI) engine,” Energy, vol. 34, no. 6, pp. 782-787, Jun. 2009.
- M. Sjöberg and J. E. Dec, “Effects of EGR and its constituents on HCCI autoignition of ethanol,” Proc. Combust. Inst., vol. 33, no. 2, pp. 3031-3038, Jan. 2011.
- M. Nishi, M. Kanehara, and N. Iida, “Assessment for innovative combustion on HCCI engine by controlling EGR ratio and engine speed,” Appl. Therm. Eng., vol. 99, pp. 42-60, 2016.
- Y. Putrasari, N. Jamsran, and O. Lim, “An investigation on the DME HCCI autoignition under EGR and boosted operation,” Fuel, vol. 200, pp. 447-457, 2017.
- M. Martins, I. Fischer, F. Gusberti, R. Sari, and M. D. Nora, “HCCI of Wet Ethanol on a Dedicated Cylinder of a Diesel Engine,” in SAE Technical Papers, 2017, vol. 2017-March, no. March.
- M. Martins and H. Zhao, “4-Stroke Multi-Cylinder Gasoline Engine with Controlled Auto-Ignition (CAI) Combustion: a comparison between Naturally Aspirated and Turbocharged Operation,” in SAE Technical Paper, 2008, no. October.
- O. Welling and N. Collings, “UEGO Based Measurement of EGR Rate and Residual Gas Fraction,” in SAE Technical Papers, 2011.
- K. Hegarty, P. Dickinson, D. Cieslar, and N. Collings, “Fast O 2 Measurement using Modified UEGO Sensors in the Intake and Exhaust of a Diesel Engine,” in SAE Technical Papers, 2013, vol. 2.
- P. B. Dickinson, K. Hegarty, N. Collings, and T. Ramsander, “Application of Fast Oxygen Sensors for Investigations into Air-Path Dynamics and EGR Distribution in a Diesel Engine,” in SAE Technical Papers, 2014, vol. 1.
- J. B. Heywood, Internal Combustion Engine Fundementals, vol. 21. 1988.