IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v258y2022ics0360544222017789.html
   My bibliography  Save this article

A numerical investigation on the formation of NO2 and N2O in laminar counterflow methane/n-heptane dual fuel flames

Author

Listed:
  • Xi, Jianfei
  • Yang, Guoqing
  • Guo, Hongsheng
  • Gu, Zhongzhu

Abstract

To understand the fundamental mechanisms of nitrogen dioxide (NO2) and nitrous oxide (N2O) formation in natural gas-diesel dual fuel combustion, a numerical study on NO2 and N2O formation in laminar counterflow methane (CH4)/n-heptane (n-C7H16) dual fuel flames is conducted. The results indicate that NO2 accounts for a small part of total NOx formation. The NO2 emission index first increases and then decreases with increasing CH4 addition and increases monotonically with increasing flame strain rate. The NO2 emission indices by different reactions are identified and analyzed. It is revealed that a small amount of CH4 addition increases the NO2 emission index because of increased HO2 generation while a larger amount of CH4 addition decreases the NO2 emission index due to the reduced NO production. Besides, it is concluded that decreasing flame temperature is beneficial to the formation of NO2, which explains the monotonic increase of NO2 emission index with increasing flame strain rate. Little N2O is formed in CH4/n-C7H16 dual fuel flames compared to NO and NO2. The N2O emission index decreases with increasing CH4 addition and flame strain rate. However, the relatively change of N2O emission index is quite small compared to that of NO2 emission index.

Suggested Citation

  • Xi, Jianfei & Yang, Guoqing & Guo, Hongsheng & Gu, Zhongzhu, 2022. "A numerical investigation on the formation of NO2 and N2O in laminar counterflow methane/n-heptane dual fuel flames," Energy, Elsevier, vol. 258(C).
    • Handle: RePEc:eee:energy:v:258:y:2022:i:c:s0360544222017789
    DOI: 10.1016/j.energy.2022.124875
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544222017789
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2022.124875?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. Yousefi, Amin & Guo, Hongsheng & Birouk, Madjid & Liko, Brian, 2019. "On greenhouse gas emissions and thermal efficiency of natural gas/diesel dual-fuel engine at low load conditions: Coupled effect of injector rail pressure and split injection," Applied Energy, Elsevier, vol. 242(C), pages 216-231.
    2. 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.
    3. Sabnis, Prithviraj & Aggarwal, Suresh K., 2018. "A numerical study of NOx and soot emissions in methane/n-heptane triple flames," Renewable Energy, Elsevier, vol. 126(C), pages 844-854.
    4. Carlucci, A.P. & de Risi, A. & Laforgia, D. & Naccarato, F., 2008. "Experimental investigation and combustion analysis of a direct injection dual-fuel diesel–natural gas engine," Energy, Elsevier, vol. 33(2), pages 256-263.
    Full references (including those not matched with items on IDEAS)

    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. 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).
    2. 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.
    3. Barik, Debabrata & Murugan, S., 2014. "Investigation on combustion performance and emission characteristics of a DI (direct injection) diesel engine fueled with biogas–diesel in dual fuel mode," Energy, Elsevier, vol. 72(C), pages 760-771.
    4. Park, Cheolwoong & Kim, Changgi & Lee, Sangho & Lee, Sunyoup & Lee, Janghee, 2019. "Comparative evaluation of performance and emissions of CNG engine for heavy-duty vehicles fueled with various caloric natural gases," Energy, Elsevier, vol. 174(C), pages 1-9.
    5. Lee, Chia-fon & Pang, Yuxin & Wu, Han & Nithyanandan, Karthik & Liu, Fushui, 2020. "An optical investigation of substitution rates on natural gas/diesel dual-fuel combustion in a diesel engine," Applied Energy, Elsevier, vol. 261(C).
    6. 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.
    7. Hegab, Abdelrahman & La Rocca, Antonino & Shayler, Paul, 2017. "Towards keeping diesel fuel supply and demand in balance: Dual-fuelling of diesel engines with natural gas," Renewable and Sustainable Energy Reviews, Elsevier, vol. 70(C), pages 666-697.
    8. Yang, Bo & Xi, Chengxun & Wei, Xing & Zeng, Ke & Lai, Ming-Chia, 2015. "Parametric investigation of natural gas port injection and diesel pilot injection on the combustion and emissions of a turbocharged common rail dual-fuel engine at low load," Applied Energy, Elsevier, vol. 143(C), pages 130-137.
    9. Chintala, V. & Subramanian, K.A., 2015. "Experimental investigations on effect of different compression ratios on enhancement of maximum hydrogen energy share in a compression ignition engine under dual-fuel mode," Energy, Elsevier, vol. 87(C), pages 448-462.
    10. Bodisco, Timothy & Brown, Richard J., 2013. "Inter-cycle variability of in-cylinder pressure parameters in an ethanol fumigated common rail diesel engine," Energy, Elsevier, vol. 52(C), pages 55-65.
    11. Kalam, M.A. & Masjuki, H.H., 2011. "An experimental investigation of high performance natural gas engine with direct injection," Energy, Elsevier, vol. 36(5), pages 3563-3571.
    12. Abu-Jrai, Ahmad M. & Al-Muhtaseb, Ala'a H. & Hasan, Ahmad O., 2017. "Combustion, performance, and selective catalytic reduction of NOx for a diesel engine operated with combined tri fuel (H2, CH4, and conventional diesel)," Energy, Elsevier, vol. 119(C), pages 901-910.
    13. Han, Zhiqiang & Li, Bolun & Tian, Wei & Xia, Qi & Leng, Songpeng, 2019. "Influence of coupling action of oxygenated fuel and gas circuit oxygen on hydrocarbons formation in diesel engine," Energy, Elsevier, vol. 173(C), pages 196-206.
    14. 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.
    15. Shu, Jun & Fu, Jianqin & Liu, Jingping & Ma, Yinjie & Wang, Shuqian & Deng, Banglin & Zeng, Dongjian, 2019. "Effects of injector spray angle on combustion and emissions characteristics of a natural gas (NG)-diesel dual fuel engine based on CFD coupled with reduced chemical kinetic model," Applied Energy, Elsevier, vol. 233, pages 182-195.
    16. Wei Tian & Yunlu Chu & Zhiqiang Han & Xiang Wang & Wenbin Yu & Xueshun Wu, 2019. "Experimental Study of the Effect of Intake Oxygen Concentration on Engine Combustion Process and Hydrocarbon Emissions with N-Butanol-Diesel Blended Fuel," Energies, MDPI, vol. 12(7), pages 1-17, April.
    17. Ramasamy, D. & Zainal, Z.A. & Kadirgama, K. & Walker-Gitano Briggs, Horizon, 2016. "Effect of dissimilar valve lift on a bi-fuel CNG engine operation," Energy, Elsevier, vol. 112(C), pages 509-519.
    18. Hairuddin, A. Aziz & Yusaf, Talal & Wandel, Andrew P., 2014. "A review of hydrogen and natural gas addition in diesel HCCI engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 32(C), pages 739-761.
    19. Hussein A. Mahmood & Nor Mariah. Adam & B. B. Sahari & S. U. Masuri, 2017. "New Design of a CNG-H 2 -AIR Mixer for Internal Combustion Engines: An Experimental and Numerical Study," Energies, MDPI, vol. 10(9), pages 1-27, September.
    20. Chintala, Venkateswarlu & Subramanian, K.A., 2017. "A comprehensive review on utilization of hydrogen in a compression ignition engine under dual fuel mode," Renewable and Sustainable Energy Reviews, Elsevier, vol. 70(C), pages 472-491.

    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:energy:v:258:y:2022:i:c:s0360544222017789. 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.journals.elsevier.com/energy .

    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.