IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i13p4749-d850857.html
   My bibliography  Save this article

DNS Study of Spherically Expanding Premixed Turbulent Ammonia-Hydrogen Flame Kernels, Effect of Equivalence Ratio and Hydrogen Content

Author

Listed:
  • Nithin Mukundakumar

    (Power and Flow, Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands)

  • Rob Bastiaans

    (Power and Flow, Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
    Eindhoven Institute for Renewable Energy Systems (EIRES), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands)

Abstract

In this study, 3D premixed turbulent ammonia-hydrogen flames in air were studied using DNS. Mixtures with 75%, 50% and 25% ammonia (by mole fraction in the fuel mixture) and equivalence ratios of 0.8, 1.0 and 1.2 were studied. The studies were conducted in a decaying turbulence field with an initial Karlovitz number of 10. The flame structure and the influence of ammonia and the equivalence ratio were first studied. It was observed that the increase in equivalence ratio smoothened out the small scale wrinkles while leading to strongly curved leading edges. Increasing the amount of hydrogen in the fuel mixtures also led to increasingly distorted flames. These effects are attributed to local increases in the equivalence ratio due to the preferential diffusion effects of hydrogen. The effects of curvature on the flame chemistry were studied by looking at fuel consumption rates and key reactions. It was observed that the highly mobile H 2 and H species were responsible for differential rates of fuel consumption in the positively curved and negatively curved regions of the flame. The indication of a critical amount of hydrogen in the fuel mixture was observed, after which the trends of reactions involving H radical reactions were flipped with respect to the sign of the curvature. This also has implications on NO formation. Finally, the spatial profiles of heat release and temperature for 50% hydrogen were studied, which showed that the flame brush of the lean case increases in width and that the flame propagation is slow for stoichiometric and rich cases attributed to suppression of flame chemistry due to preferential diffusion effects.

Suggested Citation

  • Nithin Mukundakumar & Rob Bastiaans, 2022. "DNS Study of Spherically Expanding Premixed Turbulent Ammonia-Hydrogen Flame Kernels, Effect of Equivalence Ratio and Hydrogen Content," Energies, MDPI, vol. 15(13), pages 1-16, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4749-:d:850857
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/13/4749/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/13/4749/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Xiao, Hua & Valera-Medina, Agustin & Bowen, Philip J, 2017. "Study on premixed combustion characteristics of co-firing ammonia/methane fuels," Energy, Elsevier, vol. 140(P1), pages 125-135.
    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. Alexander I. Balitskii & Vitaly V. Dmytryk & Lyubomir M. Ivaskevich & Olexiy A. Balitskii & Alyona V. Glushko & Lev B. Medovar & Karol F. Abramek & Ganna P. Stovpchenko & Jacek J. Eliasz & Marcin A. K, 2022. "Improvement of the Mechanical Characteristics, Hydrogen Crack Resistance and Durability of Turbine Rotor Steels Welded Joints," Energies, MDPI, vol. 15(16), pages 1-23, August.

    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. Cai, Tao & Zhao, Dan & Chan, Siew Hwa & Shahsavari, Mohammad, 2022. "Tailoring reduced mechanisms for predicting flame propagation and ignition characteristics in ammonia and ammonia/hydrogen mixtures," Energy, Elsevier, vol. 260(C).
    2. Wei, Wenwen & Li, Gesheng & Zhang, Zunhua & Long, Yanxiang & Zhang, Hanyuyang & Huang, Yong & Zhou, Mengni & Wei, Yi, 2023. "Effects of ammonia addition on the performance and emissions for a spark-ignition marine natural gas engine," Energy, Elsevier, vol. 272(C).
    3. Joanna Jójka & Rafał Ślefarski, 2021. "Emission Characteristics for Swirl Methane–Air Premixed Flames with Ammonia Addition," Energies, MDPI, vol. 14(3), pages 1-19, January.
    4. Muhammad Aziz & Agung Tri Wijayanta & Asep Bayu Dani Nandiyanto, 2020. "Ammonia as Effective Hydrogen Storage: A Review on Production, Storage and Utilization," Energies, MDPI, vol. 13(12), pages 1-25, June.
    5. Wang, Siqi & Chong, Cheng Tung & Xie, Tian & Józsa, Viktor & Ng, Jo-Han, 2023. "Ammonia/methane dual-fuel injection and Co-firing strategy in a swirl flame combustor for pollutant emissions control," Energy, Elsevier, vol. 281(C).
    6. Park, Yeseul & Choi, Minsung & Choi, Gyungmin, 2023. "Thermodynamic performance study of large-scale industrial gas turbine with methane/ammonia/hydrogen blended fuels," Energy, Elsevier, vol. 282(C).
    7. Sharma, Debojit & Lee, Bok Jik & Dash, Sukanta Kumar & Reddy, V. Mahendra, 2023. "Experimental and numerical investigation on ultra-high intensity premixed LPG- air combustion in a novel porous stack burner," Energy, Elsevier, vol. 272(C).
    8. Skabelund, Brent B. & Stechel, Ellen B. & Milcarek, Ryan J., 2023. "Thermodynamic analysis of a gas turbine utilizing ternary CH4/H2/NH3 fuel blends," Energy, Elsevier, vol. 282(C).
    9. Hookyung Lee & Min-Jung Lee, 2021. "Recent Advances in Ammonia Combustion Technology in Thermal Power Generation System for Carbon Emission Reduction," Energies, MDPI, vol. 14(18), pages 1-29, September.
    10. Li, Youping & Zhang, Yiran & Zhan, Reggie & Huang, Zhen & Lin, He, 2020. "Effects of ammonia addition on PAH formation in laminar premixed ethylene flames based on laser-induced fluorescence measurement," Energy, Elsevier, vol. 213(C).
    11. Wu, Fang-Hsien & Chen, Guan-Bang, 2020. "Numerical study of hydrogen peroxide enhancement of ammonia premixed flames," Energy, Elsevier, vol. 209(C).
    12. Chai, Wai Siong & Bao, Yulei & Jin, Pengfei & Tang, Guang & Zhou, Lei, 2021. "A review on ammonia, ammonia-hydrogen and ammonia-methane fuels," Renewable and Sustainable Energy Reviews, Elsevier, vol. 147(C).
    13. Li, Jun & Huang, Hongyu & Deng, Lisheng & He, Zhaohong & Osaka, Yugo & Kobayashi, Noriyuki, 2019. "Effect of hydrogen addition on combustion and heat release characteristics of ammonia flame," Energy, Elsevier, vol. 175(C), pages 604-617.
    14. Chen, Chen & Liu, Dong, 2023. "Review of effects of zero-carbon fuel ammonia addition on soot formation in combustion," Renewable and Sustainable Energy Reviews, Elsevier, vol. 185(C).
    15. Liu, Shibo & Zou, Chun & Song, Yu & Cheng, Sizhe & Lin, Qianjin, 2019. "Experimental and numerical study of laminar flame speeds of CH4/NH3 mixtures under oxy-fuel combustion," Energy, Elsevier, vol. 175(C), pages 250-258.
    16. Zhai, Yifan & Wang, Shuofeng & Wang, Zhe & Zhang, Tianyue & Ji, Changwei, 2023. "Experimental and numerical study on laminar combustion characteristics of by-product hydrogen coke oven gas," Energy, Elsevier, vol. 278(C).

    More about this item

    Keywords

    combustion; ammonia; diffusion;
    All these keywords.

    Statistics

    Access and download statistics

    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:gam:jeners:v:15:y:2022:i:13:p:4749-:d:850857. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.