This content is not included in your SAE MOBILUS subscription, or you are not logged in.
An Experimental Investigation of In-Cylinder Flow Motion Effect on Dual-Fuel Premixed Compression Ignition Characteristics
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2020 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The combustion process using two fuels with different reactivity, known as dual-fuel combustion or RCCI is mainly studied to reduce emissions while maintaining thermal efficiency compared to the conventional diesel combustion. Many studies have proven that dual-fuel combustion has a positive prospect in future combustion to achieve ultra-low engine-out emissions with high indicated thermal efficiency. However, a limitation on high-load expansion due to the higher maximum in-cylinder pressure rise rate (mPRR) is a main problem. Thus, it is important to establish the operating strategy and study the effect of in-cylinder flow motion with dual-fuel combustion to achieve a low mPRR and emissions while maintaining high-efficiency.
In this research, the characteristics of gasoline-diesel dual-fuel combustion on different hardware were studied to verify the effect of the in-cylinder flow motion on dual-fuel combustion. To see such an effect, different head types (swirl and tumble) were used with different combustion chamber shapes (conventional vs bathtub).
The higher thermal efficiency with swirl motion on low load combustion was shown with stable combustion due to the faster combustion occurred by air-fuel mixing of diesel fuel by swirl effect. However, under the high load condition, the fast combustion at the first stage of the combustion process by swirl motion causes high pressure rise rate, which could not be fully controlled by EGR rate. High EGR rate makes poor combustion by rich combustion under high load condition due to the limitation of intake pressure. On the other hand, tumble motion gives slow combustion rate in the first stage of the combustion (MFB 05-50), and contributes on second stage of the combustion (MFB 50-90) to be faster which are mostly gasoline fuel. The higher tumble motion increases the latter combustion speed and results in faster overall burn duration. With higher tumble motion, thermal efficiency can be improved with potential of expanding higher load condition.
- Sanghyun Chu - Seoul National University
- Hyungjin Shin - Seoul National University
- Kihong Kim - Seoul National University
- Sunyoung Moon - Seoul National University
- Kyoungdoug Min - Seoul National University
- Hyunsung Jung - Hyundai Motor Group
- Hyounghyoun Kim - Hyundai Motor Group
- Yohan Chi - Hyundai Motor Group
CitationChu, S., Shin, H., Kim, K., Moon, S. et al., "An Experimental Investigation of In-Cylinder Flow Motion Effect on Dual-Fuel Premixed Compression Ignition Characteristics," SAE Technical Paper 2020-01-0306, 2020, https://doi.org/10.4271/2020-01-0306.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
|[Unnamed Dataset 3]|
|[Unnamed Dataset 4]|
|[Unnamed Dataset 5]|
|[Unnamed Dataset 6]|
|[Unnamed Dataset 7]|
- Neely, G.D., Sasaki, S., and Leet, J.A.J.S. t., “Experimental Investigation of PCCI-DI Combustion on Emissions in a Light-Duty Diesel Engine,” 197-207, 2004.
- Hardy, W.L. and Reitz, R.D. “A Study of the Effects of High EGR, High Equivalence Ratio, and Mixing Time on Emissions Levels in a Heavy-Duty Diesel Engine for PCCI Combustion.” SAE Technical Paper 2006-01-0026, 2006, https://doi.org/10.4271/2006-01-0026.
- Yu, Y., Su, W., and Huang, H. , “Study of Fuel Distribution on Diesel PCCI Combustion by Development of a New Characteristic-Time Combustion Model,” SAE Int. J. Fuels Lubr. 1(1):957-969, 2008, doi:https://doi.org/10.4271/2008-01-1605.
- Splitter, D., Kokjohn, S., Rein, K., Hanson, R. et al. , “An Optical Investigation of Ignition Processes in Fuel Reactivity Controlled PCCI Combustion,” 3(1):142-162, 2010.
- Chu, S., Lee, J., Cha, J., Choi, H. et al. , “An Experimental Investigation of Injection and Operating Strategies on Diesel Single Cylinder Engine under JP-8 and Dual-Fuel PCCI Combustion,” SAE Technical Paper 2015-01-0844, 2015, https://doi.org/10.4271/2015-01-0844.
- Kokjohn, S., Hanson, R., Splitter, D., Kaddatz, J. et al. , “Fuel Reactivity Controlled Compression Ignition (RCCI) Combustion in Light-and Heavy-Duty Engines,” 4(1):360-374, 2011.
- Splitter, D., Hanson, R., Kokjohn, S., and Reitz, R.D. , “Reactivity Controlled Compression Ignition (RCCI) Heavy-Duty Engine Operation at Mid-and High-Loads with Conventional and Alternative Fuels,” SAE Technical Paper 2011-01-0363, 2011, https://doi.org/10.4271/2011-01-0363.
- Nieman, D.E., Dempsey, A.B., and Reitz, R.D. , “Heavy-Duty RCCI Operation Using Natural Gas and Diesel,” SAE International Journal of Engines 5(2):270-285, 2012.
- Benajes, J., Molina, S., García, A., Belarte, E. et al. , “An Investigation on RCCI Combustion in a Heavy Duty Diesel Engine Using In-Cylinder Blending of Diesel and Gasoline Fuels,” Applied Thermal Engineering 63(1):66-76, 2014, doi:10.1016/j.applthermaleng.2013.10.052.
- Curran, S., Hanson, R., Wagner, R., and Reitz, R.D. , “Efficiency and Emissions Mapping of RCCI in a Light-Duty Diesel Engine,” SAE Technical Paper 2013-01-0289, 2013, https://doi.org/10.4271/2013-01-0289.
- Lee, J., Chu, S., Cha, J., Choi, H. et al. , “Effect of the Diesel Injection Strategy on the Combustion and Emissions of Propane/Diesel Dual Fuel Premixed Charge Compression Ignition Engines,” Energy 93:1041-1052, 2015, doi:10.1016/j.energy.2015.09.032.
- Kang, J. “Combustion Optimization of Diesel and Propane Dual Fueled Engine,” Ms.D, Seoul National University, 2018.
- Kang, J., Chu, S., Lee, J., Kim, G. et al. , “Effect of Operating Parameters on Diesel/Propane Dual Fuel Premixed Compression Ignition in a Diesel Engine,” 19(1):27-35, 2018.
- Lee, J., Oh, H., and Bae, C. , “Combustion Process of JP-8 and Fossil Diesel Fuel in a Heavy Duty Diesel Engine Using Two-Color Thermometry,” Fuel 102:264-273, 2012, doi:10.1016/j.fuel.2012.07.029.
- Königsson, F. “On Combustion in the CNG-Diesel Dual Fuel Engine,” KTH Royal Institute of Technology, 2014.
- Splitter, D., Wissink, M., DelVescovo, D., and Reitz, R.J.S.I. J. o. E., “Improving the Understanding of Intake and Charge Effects for Increasing RCCI Engine Efficiency,” 7(2):913-27, 2014.
- Di Blasio, G., Belgiorno, G., and Beatrice, C. , “Effects on Performances, Emissions and Particle Size Distributions of a Dual Fuel (Methane-Diesel) Light-Duty Engine Varying the Compression Ratio,” Applied Energy 204:726-740, 2017, doi:10.1016/j.apenergy.2017.07.103.
- Karim, G. and Wierzba, I. , “Experimental and Analytical Studies of the Lean Operational Limits in Methane Fuelled Spark Ignition and Compression Ignition Engines,” SAE Technical Paper 891637, 1989, https://doi.org/10.4271/891637.
- Benajes, J., Pastor, J.V., García, A., and Boronat, V. , “A RCCI Operational Limits Assessment in a Medium Duty Compression Ignition Engine Using an Adapted Compression Ratio,” Energy Conversion and Management 126:497-508, 2016, doi:10.1016/j.enconman.2016.08.023.
- Lee, J. , “Experimental Study on the Characteristics of Dual-Fuel Combustion Modes and Extension of Dual-Fuel PCI Operating Range in a CI Engine,” Ph.D., Seoul National University, 2016.
- Lee, J., Chu, S., Min, K., Kim, M. et al. , “Classification of Diesel and Gasoline Dual-Fuel Combustion Modes by the Analysis of Heat Release Rate Shapes in a Compression Ignition Engine,” Fuel 209:587-597, 2017.
- Benajes, J., Pastor, J.V., García, A., and Monsalve-Serrano, J. , “The Potential of RCCI Concept to Meet EURO VI NOx Limitation and Ultra-Low Soot Emissions in a Heavy-Duty Engine over the Whole Engine Map,” Fuel 159:952-961, 2015, doi:10.1016/j.fuel.2015.07.064.
- Benajes, J., García, A., Monsalve-Serrano, J., and Boronat, V. , “Achieving Clean and Efficient Engine Operation up to Full Load by Combining Optimized RCCI and Dual-Fuel Diesel-Gasoline Combustion Strategies,” Energy Conversion and Management 136:142-151, 2017, doi:10.1016/j.enconman.2017.01.010.
- Benajes, J., García, A., Monsalve-Serrano, J., and Villalta, D. , “Exploring the Limits of the Reactivity Controlled Compression Ignition Combustion Concept in a Light-Duty Diesel Engine and the Influence of the Direct-Injected Fuel Properties,” Energy Conversion and Management 157:277-287, 2018, doi:10.1016/j.enconman.2017.12.028.
- Nieman, D.E., Morris, A.P., Miwa, J.T., and Denton, B.D. , “Methods of Improving Combustion Efficiency in a High-Efficiency, Lean Burn Dual-Fuel Heavy-Duty Engine,” SAE Technical Paper 2019-01-0032, 2019, https://doi.org/10.4271/2019-01-0032.
- Nieman, D.E., Morris, A.P., Neely, G.D., Matheaus, A.C. et al. , “Utilizing Multiple Combustion Modes to Increase Efficiency and Achieve Full Load Dual-Fuel Operation in a Heavy-Duty Engine,” SAE Technical Paper 2019-01-1157, 2019, https://doi.org/10.4271/2019-01-1157.
- Lee, S. and Park, S. , “Optimization of the Piston Bowl Geometry and the Operating Conditions of a Gasoline-Diesel Dual-Fuel Engine Based on a Compression Ignition Engine,” Energy 121:433-448, 2017, doi:10.1016/j.energy.2017.01.026.
- Lee, S., Jeon, J., and Park, S. , “Optimization of Combustion Chamber Geometry and Operating Conditions for Compression Ignition Engine Fueled with Pre-Blended Gasoline-Diesel Fuel,” Energy Conversion and Management 126:638-648, 2016, doi:10.1016/j.enconman.2016.08.046.
- Li, J., Yang, W., and Zhou, D. , “Review on the Management of RCCI Engines,” Renewable and Sustainable Energy Reviews 69:65-79, 2017, doi:10.1016/j.rser.2016.11.159.
- Benajes, J., García, A., Pastor, J.M., and Monsalve-Serrano, J.J.E. , “Effects of Piston Bowl Geometry on Reactivity Controlled Compression Ignition Heat Transfer and Combustion Losses at Different Engine Loads,” 98:64-77, 2016.
- Carlucci, A.P., Laforgia, D., and Saracino, R. , “Effects of In-Cylinder Bulk Flow and Methane Supply Strategies on Charge Stratification, Combustion and Emissions of a Dual-Fuel DI Diesel Engine,” SAE Technical Paper 2009-01-0949, 2009, https://doi.org/10.4271/2009-01-0949.
- Carlucci, A.P., Laforgia, D., Saracino, R., and Toto, G. , “Study of Combustion Development in Methane-Diesel Dual Fuel Engines, Based on the Analysis of In-Cylinder Luminance,” SAE Technical Paper 2010-01-1297, 2010, https://doi.org/10.4271/2010-01-1297.
- Carlucci, A.P., Laforgia, D., Saracino, R., Toto, G.J.E.C. et al. , “Combustion and Emissions Control in Diesel-Methane Dual Fuel Engines: The Effects of Methane Supply Method Combined with Variable In-Cylinder Charge Bulk Motion,” 52(8-9):3004-3017, 2011.
- Porpatham, E., Ramesh, A., Nagalingam, B.J.E.C., and Management , “Effect of Swirl on the Performance and Combustion of a Biogas Fuelled Spark Ignition Engine,” 76:463-471, 2013.
- Rong, M., He, X., Liu, H., Shang, Y. et al. , “An Optical Investigation on the Combustion Characteristics of Gasoline-Diesel Dual-Fuel Applications,” SAE Technical Paper 2014-01-1310, 2014, https://doi.org/10.4271/2014-01-1310.
- Lee, J., Chu, S., Kang, J., Min, K. et al. , “The Classification of Gasoline/Diesel Dual-Fuel Combustion Based on the Heat Release Rate Shapes and Its Application in a Light-Duty Single-Cylinder Engine,” 20(1):69-79, 2019.
- Moon, S., Chu, S., Nam, T., and Min, K. , “A Study of Flow Characteristics on the Diesel-Gasoline Dual-Fuel Combustion by 3-D CFD,” SAE Technical Paper 2019-24-0117, 2019, https://doi.org/10.4271/2019-24-0117.