IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v279y2020ics0306261920312575.html
   My bibliography  Save this article

Effects of ambient methanol on pollutants formation in dual-fuel spray combustion at varying ambient temperatures: A large-eddy simulation

Author

Listed:
  • Xu, Shijie
  • Zhong, Shenghui
  • Pang, Kar Mun
  • Yu, Senbin
  • Jangi, Mehdi
  • Bai, Xue-song

Abstract

Large-eddy simulation with a finite-rate chemistry model is carried out to investigate the formation of soot and nitrogen oxides (NOx) in the dual-fuel spray combustion. Liquid n-heptane is injected into a constant volume chamber, filled with a premixed methanol–air mixture with an equivalence ratio (ϕm) of 0.3. Three dual-fuel cases are simulated under initial temperatures of 900, 950 and 1000 K. Three single-fuel cases, with the same configurations, but with pure air being used as ambient gas composition are also simulated and used as baselines for comparison purposes. The paper aims to identify the main mechanisms of soot and NOx reduction in dual-fuel spray combustion under conditions relevant to internal combustion engines. The numerical model is validated using the Engine Combustion Network n-heptane fuel experimental data. It is found that soot emission has a strong non-linear dependence on ambient temperature in dual-fuel combustion. At high temperatures, soot emission is enhanced whereas at lower temperatures, it is suppressed. For the presently studied cases, the results show that the enhanced mixing is the primary reason for soot reduction in the 900 and 950 K cases, whereas the onset auto-ignition in ambient methanol/air mixture, which leads to a shortened lift-off length of the n-heptane spray flame and reduced ambient oxygen concentration, is the mechanism behind the enhanced soot emission in the 1000 K case. The methanol dilution effects of oxygen concentration and heat capacity on ignition delay time and the maximum flame temperature are minor in the current dual-fuel configurations. Regarding NOx emission in dual-fuel combustion, it is found that the effect of methanol on NOx formation also depends on the ambient temperatures. The NOx formation rate in the dual-fuel case is lower than that of the single-fuel case at 900 K. However, an opposite trend of NOx formation rate is observed in the 1000 K cases. The main reason for the increased NOx emission is the larger high temperature region resulted from the interaction of the spray flame and the ambient mixture ignition.

Suggested Citation

  • Xu, Shijie & Zhong, Shenghui & Pang, Kar Mun & Yu, Senbin & Jangi, Mehdi & Bai, Xue-song, 2020. "Effects of ambient methanol on pollutants formation in dual-fuel spray combustion at varying ambient temperatures: A large-eddy simulation," Applied Energy, Elsevier, vol. 279(C).
    • Handle: RePEc:eee:appene:v:279:y:2020:i:c:s0306261920312575
    DOI: 10.1016/j.apenergy.2020.115774
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261920312575
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2020.115774?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Han, Guopeng & Yao, Anren & Yao, Chunde & Wu, Taoyang & Wang, Bin & Wei, Hongyuan, 2017. "Mechanism analysis on controllable methanol quick combustion," Applied Energy, Elsevier, vol. 206(C), pages 558-567.
    2. da Costa, Roberto Berlini Rodrigues & Valle, Ramón Molina & Hernández, Juan J. & Malaquias, Augusto César Teixeira & Coronado, Christian J.R. & Pujatti, Fabrício José Pacheco, 2020. "Experimental investigation on the potential of biogas/ethanol dual-fuel spark-ignition engine for power generation: Combustion, performance and pollutant emission analysis," Applied Energy, Elsevier, vol. 261(C).
    3. Liu, Haifeng & Ma, Guixiang & Hu, Bin & Zheng, Zunqing & Yao, Mingfa, 2018. "Effects of port injection of hydrous ethanol on combustion and emission characteristics in dual-fuel reactivity controlled compression ignition (RCCI) mode," Energy, Elsevier, vol. 145(C), pages 592-602.
    4. Xu, Leilei & Bai, Xue-Song & Li, Changle & Tunestål, Per & Tunér, Martin & Lu, Xingcai, 2019. "Combustion characteristics of gasoline DICI engine in the transition from HCCI to PPC: Experiment and numerical analysis," Energy, Elsevier, vol. 185(C), pages 922-937.
    5. Lounici, Mohand Said & Loubar, Khaled & Tarabet, Lyes & Balistrou, Mourad & Niculescu, Dan-Catalin & Tazerout, Mohand, 2014. "Towards improvement of natural gas-diesel dual fuel mode: An experimental investigation on performance and exhaust emissions," Energy, Elsevier, vol. 64(C), pages 200-211.
    6. Gong, Cheng & Jangi, Mehdi & Bai, Xue-Song, 2014. "Large eddy simulation of n-Dodecane spray combustion in a high pressure combustion vessel," Applied Energy, Elsevier, vol. 136(C), pages 373-381.
    7. Kan, Xiang & Wei, Liping & Li, Xian & Li, Han & Zhou, Dezhi & Yang, Wenming & Wang, Chi-Hwa, 2020. "Effects of the three dual-fuel strategies on performance and emissions of a biodiesel engine," Applied Energy, Elsevier, vol. 262(C).
    8. Liu, Haifeng & Wang, Xin & Zheng, Zunqing & Gu, Jingbo & Wang, Hu & Yao, Mingfa, 2014. "Experimental and simulation investigation of the combustion characteristics and emissions using n-butanol/biodiesel dual-fuel injection on a diesel engine," Energy, Elsevier, vol. 74(C), pages 741-752.
    9. Xu, Leilei & Bai, Xue-Song & Jia, Ming & Qian, Yong & Qiao, Xinqi & Lu, Xingcai, 2018. "Experimental and modeling study of liquid fuel injection and combustion in diesel engines with a common rail injection system," Applied Energy, Elsevier, vol. 230(C), pages 287-304.
    10. Liu, Jie & Yang, Fuyuan & Wang, Hewu & Ouyang, Minggao & Hao, Shougang, 2013. "Effects of pilot fuel quantity on the emissions characteristics of a CNG/diesel dual fuel engine with optimized pilot injection timing," Applied Energy, Elsevier, vol. 110(C), pages 201-206.
    11. Sahoo, B.B. & Sahoo, N. & Saha, U.K., 2009. "Effect of engine parameters and type of gaseous fuel on the performance of dual-fuel gas diesel engines--A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(6-7), pages 1151-1184, August.
    12. Imran, S. & Emberson, D.R. & Diez, A. & Wen, D.S. & Crookes, R.J. & Korakianitis, T., 2014. "Natural gas fueled compression ignition engine performance and emissions maps with diesel and RME pilot fuels," Applied Energy, Elsevier, vol. 124(C), pages 354-365.
    13. Zhou, D.Z. & Yang, W.M. & An, H. & Li, J., 2015. "Application of CFD-chemical kinetics approach in detecting RCCI engine knocking fuelled with biodiesel/methanol," Applied Energy, Elsevier, vol. 145(C), pages 255-264.
    14. Ma, Shuaiying & Zheng, Zunqing & Liu, Haifeng & Zhang, Quanchang & Yao, Mingfa, 2013. "Experimental investigation of the effects of diesel injection strategy on gasoline/diesel dual-fuel combustion," Applied Energy, Elsevier, vol. 109(C), pages 202-212.
    15. Ma, Baodong & Yao, Anren & Yao, Chunde & Wu, Taoyang & Wang, Bin & Gao, Jian & Chen, Chao, 2020. "Exergy loss analysis on diesel methanol dual fuel engine under different operating parameters," Applied Energy, Elsevier, vol. 261(C).
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Liu, Xinlei & Wang, Hu & Zheng, Zunqing & Yao, Mingfa, 2021. "Development of a reduced primary reference fuel-PODE3-methanol-ethanol-n-butanol mechanism for dual-fuel engine simulations," Energy, Elsevier, vol. 235(C).
    2. Xu, Leilei & Treacy, Mark & Zhang, Yan & Aziz, Amir & Tuner, Martin & Bai, Xue-Song, 2022. "Comparison of efficiency and emission characteristics in a direct-injection compression ignition engine fuelled with iso-octane and methanol under low temperature combustion conditions," Applied Energy, Elsevier, vol. 312(C).
    3. Zandie, Mohammad & Ng, Hoon Kiat & Gan, Suyin & Muhamad Said, Mohd Farid & Cheng, Xinwei, 2022. "A comprehensive CFD study of the spray combustion, soot formation and emissions of ternary mixtures of diesel, biodiesel and gasoline under compression ignition engine-relevant conditions," Energy, Elsevier, vol. 260(C).
    4. Agarwal, Avinash Kumar & Kumar, Vikram & Ankur Kalwar, Ashutosh Jena, 2022. "Fuel injection strategy optimisation and experimental performance and emissions evaluation of diesel displacement by port fuel injected methanol in a retrofitted mid-size genset engine prototype," Energy, Elsevier, vol. 248(C).
    5. Xu, Leilei & Bai, Xue-Song & Li, Yaopeng & Treacy, Mark & Li, Changle & Tunestål, Per & Tunér, Martin & Lu, Xingcai, 2020. "Effect of piston bowl geometry and compression ratio on in-cylinder combustion and engine performance in a gasoline direct-injection compression ignition engine under different injection conditions," Applied Energy, Elsevier, vol. 280(C).
    6. Zhong, Shenghui & Xu, Shijie & Bai, Xue-Song & Peng, Zhijun & Zhang, Fan, 2021. "Large eddy simulation of n-heptane/syngas pilot ignition spray combustion: Ignition process, liftoff evolution and pollutant emissions," Energy, Elsevier, vol. 233(C).

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Barik, Debabrata & Murugan, S. & Sivaram, N.M. & Baburaj, E. & Shanmuga Sundaram, P., 2017. "Experimental investigation on the behavior of a direct injection diesel engine fueled with Karanja methyl ester-biogas dual fuel at different injection timings," Energy, Elsevier, vol. 118(C), pages 127-138.
    2. Ahmad, Zeeshan & Kaario, Ossi & Qiang, Cheng & Vuorinen, Ville & Larmi, Martti, 2019. "A parametric investigation of diesel/methane dual-fuel combustion progression/stages in a heavy-duty optical engine," Applied Energy, Elsevier, vol. 251(C), pages 1-1.
    3. Zhong, Shenghui & Xu, Shijie & Bai, Xue-Song & Peng, Zhijun & Zhang, Fan, 2021. "Large eddy simulation of n-heptane/syngas pilot ignition spray combustion: Ignition process, liftoff evolution and pollutant emissions," Energy, Elsevier, vol. 233(C).
    4. Hernández, J.J. & Lapuerta, M. & Barba, J., 2015. "Effect of partial replacement of diesel or biodiesel with gas from biomass gasification in a diesel engine," Energy, Elsevier, vol. 89(C), pages 148-157.
    5. Liu, Junheng & Wu, Pengcheng & Ji, Qian & Sun, Ping & Wang, Pan & Meng, Zhongwei & Ma, Hongjie, 2022. "Experimental study on effects of pilot injection strategy on combustion and emission characteristics of diesel/methanol dual-fuel engine under low load," Energy, Elsevier, vol. 247(C).
    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.
    7. Pan, Suozhu & Cai, Kai & Cai, Min & Du, Chenbo & Li, Xin & Han, Weiqiang & Wang, Xin & Liu, Daming & Wei, Jiangjun & Fang, Jia & Bao, Xiuchao, 2021. "Experimental study on the cyclic variations of ethanol/diesel reactivity controlled compression ignition (RCCI) combustion in a heavy-duty diesel engine," Energy, Elsevier, vol. 237(C).
    8. Lounici, M.S. & Benbellil, M.A. & Loubar, K. & Niculescu, D.C. & Tazerout, M., 2017. "Knock characterization and development of a new knock indicator for dual-fuel engines," Energy, Elsevier, vol. 141(C), pages 2351-2361.
    9. Meng, Xiangyu & Zhou, Yihui & Yang, Tianhao & Long, Wuqiang & Bi, Mingshu & Tian, Jiangping & Lee, Chia-Fon F., 2020. "An experimental investigation of a dual-fuel engine by using bio-fuel as the additive," Renewable Energy, Elsevier, vol. 147(P1), pages 2238-2249.
    10. Guerry, E. Scott & Raihan, Mostafa S. & Srinivasan, Kalyan K. & Krishnan, Sundar R. & Sohail, Aamir, 2016. "Injection timing effects on partially premixed diesel–methane dual fuel low temperature combustion," Applied Energy, Elsevier, vol. 162(C), pages 99-113.
    11. Raza, Mohsin & Wang, Hu & Yao, Mingfa, 2019. "Numerical investigation of reactivity controlled compression ignition (RCCI) using different multi-component surrogate combinations of diesel and gasoline," Applied Energy, Elsevier, vol. 242(C), pages 462-479.
    12. Li, Menghan & Wu, Hanming & Zhang, Tiechen & Shen, Boxiong & Zhang, Qiang & Li, Zhenguo, 2020. "A comprehensive review of pilot ignited high pressure direct injection natural gas engines: Factors affecting combustion, emissions and performance," Renewable and Sustainable Energy Reviews, Elsevier, vol. 119(C).
    13. Benbellil, Messaoud Abdelalli & Lounici, Mohand Said & Loubar, Khaled & Tazerout, Mohand, 2022. "Investigation of natural gas enrichment with high hydrogen participation in dual fuel diesel engine," Energy, Elsevier, vol. 243(C).
    14. Yousefi, Amin & Birouk, Madjid, 2017. "Investigation of natural gas energy fraction and injection timing on the performance and emissions of a dual-fuel engine with pre-combustion chamber under low engine load," Applied Energy, Elsevier, vol. 189(C), pages 492-505.
    15. Liu, Xinlei & Wang, Hu & Wang, Xiaofeng & Zheng, Zunqing & Yao, Mingfa, 2017. "Experimental and modelling investigations of the diesel surrogate fuels in direct injection compression ignition combustion," Applied Energy, Elsevier, vol. 189(C), pages 187-200.
    16. Cho, Jungkeun & Park, Sangjun & Song, Soonho, 2019. "The effects of the air-fuel ratio on a stationary diesel engine under dual-fuel conditions and multi-objective optimization," Energy, Elsevier, vol. 187(C).
    17. Li, Weifeng & Liu, Zhongchang & Wang, Zhongshu, 2016. "Experimental and theoretical analysis of the combustion process at low loads of a diesel natural gas dual-fuel engine," Energy, Elsevier, vol. 94(C), pages 728-741.
    18. Xu, Leilei & Bai, Xue-Song & Li, Yaopeng & Treacy, Mark & Li, Changle & Tunestål, Per & Tunér, Martin & Lu, Xingcai, 2020. "Effect of piston bowl geometry and compression ratio on in-cylinder combustion and engine performance in a gasoline direct-injection compression ignition engine under different injection conditions," Applied Energy, Elsevier, vol. 280(C).
    19. Mendiburu, Andrés Z. & Lauermann, Carlos H. & Hayashi, Thamy C. & Mariños, Diego J. & Rodrigues da Costa, Roberto Berlini & Coronado, Christian J.R. & Roberts, Justo J. & de Carvalho, João A., 2022. "Ethanol as a renewable biofuel: Combustion characteristics and application in engines," Energy, Elsevier, vol. 257(C).
    20. Roberta De Robbio & Maria Cristina Cameretti & Ezio Mancaruso & Raffaele Tuccillo & Bianca Maria Vaglieco, 2021. "CFD Study and Experimental Validation of a Dual Fuel Engine: Effect of Engine Speed," Energies, MDPI, vol. 14(14), pages 1-24, July.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:appene:v:279:y:2020:i:c:s0306261920312575. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.