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A methodology for regulating fuel stratification and improving fuel economy of GCI mode via double main-injection strategy

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Abstract

Gasoline compression ignition (GCI) combustion faces problems such as high maximum pressure rise rate (MPRR) and combustion deterioration at high loads. This paper aims to improve the engine performance of the GCI mode by regulating concentration stratification and promoting fuel-gas mixing by utilizing the double main-injection (DMI) strategy. Two direct injectors simultaneously injected gasoline with an octane number of 82.7 to investigate the energy ratio between the two main-injection and exhaust gas recirculation (EGR) on combustion and emissions. High-load experiments were conducted using the DMI strategy and compared with the single main-injection (SMI) strategy and conventional diesel combustion. The results indicate that the DMI strategy have a great potential to reduce the MPRR and improve the fuel economy of the GCI mode. At a 10 bar indicated mean effective pressure, increasing the main-injection-2 ratio (Rm−2) shortens the injection duration and increases the mean mixing time. Optimized Rm−2 could moderate the trade-off between the MPRR and the indicated specific fuel consumption with both reductions. An appropriate EGR should be adopted considering combustion and emissions. The DMI strategy achieves a highly efficient and stable combustion at high loads, with an indicated thermal efficiency (ITE) greater than 48%, CO and THC emissions at low levels, and MPRR within a reasonable range. Compared with the SMI strategy, the maximum improvement of the ITE is 1.5%, and the maximum reduction of MPRR is 1.5 bar/°CA.

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References

  1. Zhao T, Ren Z, Yang K, et al. Combustion and emissions of RP-3 jet fuel and diesel fuel in a single-cylinder diesel engine. Frontiers in Energy, 2021, online, https://doi.org/10.1007/s11708-021-0787-3

  2. Xia C, Zhao T, Fang J, et al. Experimental study of stratified lean burn characteristics on a dual injection gasoline engine. Frontiers in Energy, 2022, online, https://doi.org/10.1007/s11708-021-0812-6

  3. Kalghatgi G T, Ångström H E. Advantages of fuels with high resistance to auto-ignition in late-injection, low-temperature, compression ignition combustion. SAE Technical Papers: 2006-01-3385, 2006

  4. Dec J E. Advanced compression-ignition engines-understanding the in-cylinder processes. Proceedings of the Combustion Institute, 2009, 32(2): 2727–2742

    Article  Google Scholar 

  5. Zhang P, Xu G, Li Y, et al. Collaborative optimization of fuel composition and operating parameters of gasoline compression ignition (GCI) engine in a wide load range. Fuel, 2022, 310: 122366

    Article  Google Scholar 

  6. Wang H, Zhu H, Ma T, et al. Numerical investigation on low octane gasoline-like fuel compression ignition combustion at high load. Fuel, 2020, 270: 117532

    Article  Google Scholar 

  7. Hanson R, Splitter D, Reitz R. Operating a heavy-duty direct-injection compression-ignition engine with gasoline for low emissions. SAE Technical Paper: 2009-01-1442, 2009

  8. Kim K, Kim D, Jung Y, et al. Spray and combustion characteristics of gasoline and diesel in a direct injection compression ignition engine. Fuel, 2013, 109: 616–626

    Article  Google Scholar 

  9. Ciatti S, Subramanian S N. An experimental investigation of low-octane gasoline in diesel engines. Journal of Engineering for Gas Turbines and Power, 2011, 133(9): 092802

    Article  Google Scholar 

  10. Kalghatgi G T, Kumara Gurubaran R, Davenport A, et al. Some advantages and challenges of running a Euro IV, V6 diesel engine on a gasoline fuel. Fuel, 2013, 108: 197–207

    Article  Google Scholar 

  11. Sellnau M, Foster M, Moore W, et al. Pathway to 50% brake thermal efficiency using gasoline direct injection compression ignition. SAE International Journal of Advances and Current Practices in Mobility, 2019, 1(4): 1581–1603

    Article  Google Scholar 

  12. Pan J, Li X, Yin Z, et al. Effects of intake conditions and octane sensitivity on GCI combustion at early injection timings. Fuel, 2021, 298(5): 120803

    Article  Google Scholar 

  13. An Y, Raman V, Tang Q, et al. Combustion stability study of partially premixed combustion with low-octane fuel at low engine load conditions. Applied Energy, 2019, 235: 56–67

    Article  Google Scholar 

  14. Torelli R, Pei Y, Zhang Y, et al. Effect of fuel temperature on the performance of a heavy-duty diesel injector operating with gasoline. SAE Technical Paper: 2021-01-0547, 2021

  15. Liu H, Mao B, Liu J, et al. Pilot injection strategy management of gasoline compression ignition (GCI) combustion in a multi-cylinder diesel engine. Fuel, 2018, 221: 116–127

    Article  Google Scholar 

  16. Leermakers C A J, Bakker P C, Nijssen B C W, et al. Low octane fuel composition effects on the load range capability of partially premixed combustion. Fuel, 2014, 135: 210–222

    Article  Google Scholar 

  17. Bobi S, Kashif M, Laoonual Y. Combustion and emission control strategies for partially-premixed charge compression ignition engines: a review. Fuel, 2022, 310: 122272

    Article  Google Scholar 

  18. Jiang C X, Li Z L, Qian Y, et al. Towards low emissions and high thermal efficiency of gasoline compression ignition engine under high loads by modulating the fuel reactivity and injection strategy. Science China. Technological Sciences, 2020, 63(1): 96–104

    Article  Google Scholar 

  19. Xia J, Zhang Q, He Z, et al. Experimental study on diesel’s twin injection and spray impingement characteristics under marine engine’s conditions. Fuel, 2021, 302: 121133

    Article  Google Scholar 

  20. Avulapati M M, Rayavarapu Venkata R. Experimental studies on air-assisted impinging jet atomization. International Journal of Multiphase Flow, 2013, 57: 88–101

    Article  Google Scholar 

  21. Noce T, de Morais Hanriot S, Sales L C M, et al. Energy conversion factor for gasoline engines in real-world driving emission cycle. Automotive Innovation, 2020, 3(2): 169–180

    Article  Google Scholar 

  22. Li Z, Xia J, Jiang C, et al. Experimental study on wide load operation of gasoline compression ignition engine: real distillate gasoline versus primary reference fuel. Fuel, 2020, 277: 118211

    Article  Google Scholar 

  23. Kalghatgi G, Hildingsson L, Johansson B. Low NOx and low smoke operation of a diesel engine using gasolinelike fuels. Journal of Engineering for Gas Turbines and Power, 2010, 132(9): 092803

    Article  Google Scholar 

  24. Hao H, Liu F, Liu Z, et al. Compression ignition of low-octane gasoline: life cycle energy consumption and greenhouse gas emissions. Applied Energy, 2016, 181: 391–398

    Article  Google Scholar 

  25. Liu J, Wang H, Zheng Z, et al. Improvement of high load performance in gasoline compression ignition engine with PODE and multiple-injection strategy. Fuel, 2018, 234: 1459–1468

    Article  Google Scholar 

  26. Zeraati-Rezaei S, Al-Qahtani Y, Xu H. Investigation of hot-EGR and low pressure injection strategy for a dieseline fuelled PCI engine. Fuel, 2017, 207: 165–178

    Article  Google Scholar 

  27. Manente V, Johansson B, Tunestal P. Characterization of partially premixed combustion with ethanol: EGR sweeps, low and maximum loads. Journal of Engineering for Gas Turbines and Power, 2010, 132(8): 082802

    Article  Google Scholar 

  28. Zhang Y, Wu H, Mi S, et al. Application of methanol and optimization of mixture design over the full operating map in an intelligent charge compression ignition (ICCI) engine. Fuel Processing Technology, 2022, 234: 107345

    Article  Google Scholar 

  29. Zou X, Liu W, Lin Z, et al. An experimental investigation of the effects of fuel injection strategy on the efficiency and emissions of a heavy-duty engine at high load with gasoline compression ignition. Fuel, 2018, 220: 437–445

    Article  Google Scholar 

  30. Coratella C, Parry L, Li Y, et al. Experimental investigation of the rail pressure fluctuations correlated with fuel properties and injection settings. Automotive Innovation, 2021, 4(2): 215–226

    Article  Google Scholar 

  31. Tang Q, Liu H, Li M, et al. Optical study of spray-wall impingement impact on early-injection gasoline partially premixed combustion at low engine load. Applied Energy, 2017, 185: 708–719

    Article  Google Scholar 

  32. Li N, Sioutas C, Cho A, et al. Ultrafine particulate pollutants induce oxidative stress and mitochondrial damage. Environmental Health Perspectives, 2003, 111(4): 455–460

    Article  Google Scholar 

  33. Liu H, Ma S, Zhang Z, et al. Study of the control strategies on soot reduction under early-injection conditions on a diesel engine. Fuel, 2015, 139: 472–481

    Article  Google Scholar 

  34. Tuner M, Johansson T, Aulin H, et al. Multi cylinder partially premixed combustion performance using commercial light-duty engine hardware. SAE Technical Paper: 2014-01-2680, 2014

  35. Shen M, Tuner M, Johansson B, et al. Effects of EGR and intake pressure on PPC of conventional diesel, gasoline and ethanol in a heavy duty diesel engine. SAE Technical Paper: 2013-01-2702, 2013

  36. He T, Chen Z, Zhu L, et al. The influence of alcohol additives and EGR on the combustion and emission characteristics of diesel engine under high-load condition. Applied Thermal Engineering, 2018, 140: 363–372

    Article  Google Scholar 

  37. Jiang C, Huang G, Liu G, et al. Optimizing gasoline compression ignition engine performance and emissions: combined effects of exhaust gas recirculation and fuel octane number. Applied Thermal Engineering, 2019, 153: 669–677

    Article  Google Scholar 

  38. Wei H, Liu F, Pan J, et al. Experimental study on the effect of pre-ignition heat release on GCI engine combustion. Fuel, 2020, 262: 116562

    Article  Google Scholar 

  39. Wei H, Yu J, Zhou L. Improvement of engine performance with high compression ratio based on knock suppression using Miller cycle with boost pressure and split injection. Frontiers in Energy, 2019, 13(4): 691–706

    Article  Google Scholar 

  40. Mao B, Liu H, Zheng Z, et al. Influence of fuel properties on multi-cylinder PPC operation over a wide range of EGR and operating conditions. Fuel, 2018, 215: 352–362

    Article  Google Scholar 

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Acknowledgment

This work was supported by the National Key R&D Program of China (Grant No. 2022YFE0100100).

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Authors and Affiliations

  1. Key Laboratory for Power Machinery and Engineering of the Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240, China

    Haoqing Wu, Yaoyuan Zhang, Shijie Mi, Wenbin Zhao, Zhuoyao He, Yong Qian & Xingcai Lu

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  1. Haoqing Wu
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  2. Yaoyuan Zhang
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  3. Shijie Mi
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  4. Wenbin Zhao
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  5. Zhuoyao He
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  6. Yong Qian
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  7. Xingcai Lu
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Correspondence to Yong Qian.

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Wu, H., Zhang, Y., Mi, S. et al. A methodology for regulating fuel stratification and improving fuel economy of GCI mode via double main-injection strategy. Front. Energy 17, 678–691 (2023). https://doi.org/10.1007/s11708-022-0859-z

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  • DOI: https://doi.org/10.1007/s11708-022-0859-z

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