Performance of a CI Engine Operating in Highly Premixed Late Injection and Low Temperature Combustion Mode to Achieve Cleaner Emission – A CFD Analysis
DOI:
https://doi.org/10.38032/scse.2025.1.4Keywords:
EGR, Forte, ITR, LTC, EmmissionAbstract
A comprehensive study on a single-cylinder four-stroke cycle Diesel engine that runs in HPLI and LTC modes to achieve a cleaner emission than existing normal diesel combustion has been carried out in this CFD analysis. The impact of HPLI and LTC mode on the engine's performance is also examined. Low Inlet Temperature and varying percentages of cooled EGR technology with Injection Timing Retardation were employed to accomplish HPLI and LTC mode. The program utilized for this investigation was ANSYS FORTE 19.2, which was developed by ANSYS. CHEMKIN, a very efficient and comprehensive pre-defined industry-standard chemical kinetics software, is included with this package. At 323K, 353K, 383K, and 413K, this analysis was carried out at various amounts of EGR ranging from 0% to 60%. The results reveal that as the EGR temperature rises, the heat release rate and ignition delay decrease. With an increase in EGR percentage from 0% to 60%, EINOx was lowered from 77.3 g/kg fuel to 1.99 g/kg fuel burned at 323K temperature. EINOx increased from 10.3 g/kgfuel to 14.7 g/kgfuel for 40% EGR with the increase in EGR Temperature. CO increased from 41.8 g/kgfuel to 385 g/kgfuel for 30% EGR with an increase in EGR Temperature. However, when considering UHC and CO emissions, it has been discovered that the percentage of EGR should not be increased further than 50% to reduce NOx emissions. That will also increase CO and UHC emissions. With a high proportion of EGR (40%) and a low temperature, the results were better.
Downloads
Downloads
References
[1] W. C. M. S. M. E, Emission and Combustion Characteristics of Different Fuel in A HCCI Engine, in Applied Mechanics and Materials, 2014, vol. 543-547, pp. 1139-1142.
[2] A. A. Hairuddin, A. P. Wandel, and T. Yusaf, An introduction to a homogeneous charge compression ignition engine, Journal of Mechanical Engineering and Sciences, vol. 7, no. 1, pp. 1042-1052, 2014. DOI: https://doi.org/10.15282/jmes.7.2014.3.0101
[3] A. W. Gray and T. W. Ryan, Homogeneous charge compression ignition (HCCI) of diesel fuel, SAE Technical Papers, no. 412, 1997.
[4] H. Akagawa et al., Approaches to solve problems of the premixed lean diesel combustion, SAE Technical Papers, no. 724, 1999. DOI: https://doi.org/10.4271/1999-01-0183
[5] S. Kimura, H. Ogawa, Y. Matsui, and y. Enomoto, An experimental analysis of low temperature and premixed combustion for simultaneous reduction of NOx and particulate emissions in direct injection diesel engines, International Journal of Engine Research, vol. 3, no. 4, pp. 249-259, 2002. DOI: https://doi.org/10.1243/146808702762230932
[6] Y. Mase, J. Kawashima, and T. Sato, Nissan' s New Multivalve DI Diesel Engine Series, no. 724, 2018.
[7] S. Kimura, O. Aoki, Y. Kitahara, and E. Aiyoshizawa, Ultra-clean combustion technology combining a low temperature and premixed combustion concept for meeting future emission standards, SAE Technical Papers, no. 724, 2001. DOI: https://doi.org/10.4271/2001-01-0200
[8] M. M. Hasan, M. M. Rahman, K. Kadirgama, and D. Ramasamy, Numerical study of engine parameters on combustion and performance characteristics in an n-heptane fueled HCCI engine, Applied Thermal Engineering, vol. 128, pp. 1464-1475, 2018. DOI: https://doi.org/10.1016/j.applthermaleng.2017.09.121
[9] J. E. Dec, Advanced compression-ignition engines - Understanding the in-cylinder processes, Proceedings of the Combustion Institute, vol. 32 II, no. 2, pp. 2727-2742, 2009. DOI: https://doi.org/10.1016/j.proci.2008.08.008
[10] P. C. Miles, D. Choi, and L. M. Pickett, The Influence of Charge Dilution and Injection Timing on Low temperature Diesel Sanghoon Kook and Choongsik Bae, no. 724, 2009.
[11] A. Paykani, A. H. Kakaee, P. Rahnama, and R. D. Reitz, Progress and recent trends in reactivity-controlled compression ignition engines, International Journal of Engine Research, vol. 17, no. 5, pp. 481-524, 2016. DOI: https://doi.org/10.1177/1468087415593013
[12] M. Yao, Z. Zheng, and H. Liu, Progress and recent trends in homogeneous charge compression ignition (HCCI) engines, Progress in Energy and Combustion Science, vol. 35, no. 5, pp.398-437, 2009. DOI: https://doi.org/10.1016/j.pecs.2009.05.001
[13] An Experimental Study on Premixed-Charge Compression Ignition Gasoline Engine, SAE Technical Papers, no. 412, 1996.
[14] S. Imtenan et al., Impact of low temperature combustion attaining strategies on diesel engine emissions for diesel and biodiesels: A review, Energy Conversion and Management, vol. 80, no. x, pp. 329-356, 2014. DOI: https://doi.org/10.1016/j.enconman.2014.01.020
[15] A. B. Dempsey, N. R. Walker, E. Gingrich, and R. D. Reitz, Comparison of low temperature combustion strategies for advanced compression ignition engines with a focus on controllability, Combustion Science and Technology, vol. 186, no. 2, pp. 210-241, 2014, DOI: https://doi.org/10.1080/00102202.2013.858137
Published
Conference Proceedings Volume
Section
License
Copyright (c) 2025 Md. Jahangir Alam, Kazi Mostafijur Rahman, Md. Jamiun Noor Shadman (Author)
This work is licensed under a Creative Commons Attribution 4.0 International License.
All the articles published by this journal are licensed under a Creative Commons Attribution 4.0 International License
