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Effects of n-butanol injection timing on mixture stratification, combustion and emission characteristics of n-butanol/diesel dual direct-injection engine

Author

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  • Xie, Manyao
  • Wang, Ying
  • Zhang, Da
  • Zhang, Kaibo
  • Bai, Yuanqi

Abstract

In this paper, based on the CFD simulations, the effects of injection timing of n-butanol (InjB) on mixture stratification were quantified by a novel Sample Line method. Then InjB's impacts on combustion, emission characteristics and energy and exergy balance of dual fuel direct injection (DFDI) engine fueled n-butanol/diesel were studied in-depth. It was found that, with an earlier InjB, the distribution of n-butanol was more homogenous and the reactivity of mixture was higher, resulting in better combustion process and higher indicated thermal efficiency (ITE). As InjB was retarded, the inhomogeneity of concentration distribution of n-butanol increased. The concentration of n-butanol at the squish region was decreased and more high concentration region of n-butanol appeared at the bottom of combustion chamber pit. In addition, the wall-wetting phenomenon increased, causing more incomplete combustion and lower ITE. Compared with InjB = 150°CA BTDC, when InjB = 300°CA BTDC, the energy loss and exergy loss due to incomplete combustion were reduced by 0.17 kW and 1.88 %, respectively. The ITE enhanced by about 3.5 %, the soot emission was reduced, and the NO emission was slightly increased. Therefore, it was suggested to adopt an earlier InjB under medium loads to achieve high efficiency and clean combustion.

Suggested Citation

  • Xie, Manyao & Wang, Ying & Zhang, Da & Zhang, Kaibo & Bai, Yuanqi, 2025. "Effects of n-butanol injection timing on mixture stratification, combustion and emission characteristics of n-butanol/diesel dual direct-injection engine," Energy, Elsevier, vol. 326(C).
    • Handle: RePEc:eee:energy:v:326:y:2025:i:c:s0360544225019358
    DOI: 10.1016/j.energy.2025.136293
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    References listed on IDEAS

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    1. Jain, Ayush & Singh, Akhilendra Pratap & Agarwal, Avinash Kumar, 2017. "Effect of fuel injection parameters on combustion stability and emissions of a mineral diesel fueled partially premixed charge compression ignition (PCCI) engine," Applied Energy, Elsevier, vol. 190(C), pages 658-669.
    2. Ding, Botao & Wang, Ying & Bai, Yuanqi & Xie, Manyao & Chen, Jinge, 2024. "Effects of PODE substitution rate and fuel injection timing on combustion, emission characteristic and energy balance in PODE-gasoline dual direct-injection engine," Energy, Elsevier, vol. 294(C).
    3. Zhao, Wenbin & Wu, Haoqing & Mi, Shijie & Zhang, Yaoyuan & He, Zhuoyao & Qian, Yong & Lu, Xingcai, 2023. "Experimental investigation of the control strategy of high load extension under iso-butanol/biodiesel dual-fuel intelligent charge compression ignition (ICCI) mode," Renewable and Sustainable Energy Reviews, Elsevier, vol. 172(C).
    4. Han, Xiaoye & Yang, Zhenyi & Wang, Meiping & Tjong, Jimi & Zheng, Ming, 2017. "Clean combustion of n-butanol as a next generation biofuel for diesel engines," Applied Energy, Elsevier, vol. 198(C), pages 347-359.
    5. Mikulski, Maciej & Bekdemir, Cemil, 2017. "Understanding the role of low reactivity fuel stratification in a dual fuel RCCI engine – A simulation study," Applied Energy, Elsevier, vol. 191(C), pages 689-708.
    6. Li, Jing & Yang, Wenming & Zhou, Dezhi, 2017. "Review on the management of RCCI engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 69(C), pages 65-79.
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