IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v215y2021ipas036054422032168x.html
   My bibliography  Save this article

Effects of micro-combustor geometry and size on the heat transfer and combustion characteristics of premixed hydrogen/air flames

Author

Listed:
  • Rahbari, Alireza
  • Homayoonfar, Sajad
  • Valizadeh, Esmaeil
  • Aligoodarz, Mohammad Reza
  • Toghraie, Davood

Abstract

major challenge in the development of micro-combustors is flame instabilities—resulting in a non-uniform wall temperature distribution and lower combustion efficiency. To overcome these issues, this research investigates the combustion characteristics of premixed hydrogen/air mixture in a micro-combustor with a cavity, bluff body, rib with bluff body and rib configurations. A detailed chemical reaction mechanism is also developed which consists of 13 species and 19 reactions. The obtained results are validated with published experimental findings. Having the model validated, a parametric study has been conducted to examine the effect of thermal conductivity coefficient, equivalent ratio, aspect ratio and geometrical configurations on heat transfer and combustion characteristics of hydrogen/air flames. It is demonstrated that increasing the thermal conductivity coefficient improves the preheating of the fresh mixture at upstream. However, this causes more heat loss from the outer walls to the surroundings. Moreover, increasing the equivalence ratio of a mixture reduces the negative effects arising from the heat losses on combustion stability. At higher inlet velocities, the location of a maximum temperature shifts towards downstream, which reduces the flame and average wall temperature. Among these configurations, a micro-combustor with bluff body is a more promising option to improve the flame stability and combustion efficiency.

Suggested Citation

  • Rahbari, Alireza & Homayoonfar, Sajad & Valizadeh, Esmaeil & Aligoodarz, Mohammad Reza & Toghraie, Davood, 2021. "Effects of micro-combustor geometry and size on the heat transfer and combustion characteristics of premixed hydrogen/air flames," Energy, Elsevier, vol. 215(PA).
    • Handle: RePEc:eee:energy:v:215:y:2021:i:pa:s036054422032168x
    DOI: 10.1016/j.energy.2020.119061
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054422032168X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2020.119061?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. Chou, S.K. & Yang, W.M. & Chua, K.J. & Li, J. & Zhang, K.L., 2011. "Development of micro power generators - A review," Applied Energy, Elsevier, vol. 88(1), pages 1-16, January.
    2. Xiao Yang & Zhihong He & Lei Zhao & Shikui Dong & Heping Tan, 2019. "Effect of Channel Diameter on the Combustion and Thermal Behavior of a Hydrogen/Air Premixed Flame in a Swirl Micro-Combustor," Energies, MDPI, vol. 12(20), pages 1-16, October.
    3. Jozaalizadeh, Toomaj & Toghraie, Davood, 2019. "Numerical investigation behavior of reacting flow for flameless oxidation technology of MILD combustion: Effect of fluctuating temperature of inlet co-flow," Energy, Elsevier, vol. 178(C), pages 530-537.
    4. Zuo, Wei & E, Jiaqiang & Liu, Haili & Peng, Qingguo & Zhao, Xiaohuan & Zhang, Zhiqing, 2016. "Numerical investigations on an improved micro-cylindrical combustor with rectangular rib for enhancing heat transfer," Applied Energy, Elsevier, vol. 184(C), pages 77-87.
    5. Wan, Jianlong & Fan, Aiwu & Yao, Hong & Liu, Wei, 2016. "Experimental investigation and numerical analysis on the blow-off limits of premixed CH4/air flames in a mesoscale bluff-body combustor," Energy, Elsevier, vol. 113(C), pages 193-203.
    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. Zong, Chao & Ji, Chenzhen & Cheng, Jiaying & Zhu, Tong & Guo, Desan & Li, Chengqin & Duan, Fei, 2022. "Toward off-design loads: Investigations on combustion and emissions characteristics of a micro gas turbine combustor by external combustion-air adjustments," Energy, Elsevier, vol. 253(C).
    2. Zuo, Wei & Zhang, Yuntian & Li, Qingqing & Li, Jing & He, Zhu, 2021. "Numerical investigations on hydrogen-fueled micro-cylindrical combustors with cavity for micro-thermophotovoltaic applications," Energy, Elsevier, vol. 223(C).
    3. Xie, Bo & Peng, Qingguo & E, Jiaqiang & Tu, Yaojie & Wei, Jia & Tang, Shihao & Song, Yangyang & Fu, Guang, 2022. "Effects of CO addition and multi-factors optimization on hydrogen/air combustion characteristics and thermal performance based on grey relational analysis," Energy, Elsevier, vol. 255(C).
    4. Tan, Yan & E, Jiaqiang & Chen, Jingwei & Liao, Gaoliang & Zhang, Feng & Li, Jintao, 2022. "Investigation on combustion characteristics and thermal performance of a three rearward-step structure micro combustor fueled by premixed hydrogen/air," Renewable Energy, Elsevier, vol. 186(C), pages 486-504.
    5. Ni, Siliang & Zhao, Dan & Sellier, Mathieu & Li, Junwei & Chen, Xinjian & Li, Xinyan & Cao, Feng & Li, Weixuan, 2021. "Thermal performances and emitter efficiency improvement studies on premixed micro-combustors with different geometric shapes for thermophotovoltaics applications," Energy, Elsevier, vol. 226(C).
    6. He, Ziqiang & Yan, Yunfei & Zhao, Ting & Zhang, Zhien & Mikulčić, Hrvoje, 2022. "Parametric study of inserting internal spiral fins on the micro combustor performance for thermophotovoltaic systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    7. Gao, Wei & Yan, Yunfei & Shen, Kaiming & Huang, Lujing & Zhao, Ting & Gao, Bo, 2022. "Combustion characteristic of premixed H2/air in the micro cavity combustor with guide vanes," Energy, Elsevier, vol. 239(PA).
    8. Xie, Bo & Peng, Qingguo & Yang, Wenming & Li, Shaobo & E, Jiaqiang & Li, Zhenwei & Tao, Meng & Zhang, Ansi, 2022. "Effect of pins and exit-step on thermal performance and energy efficiency of hydrogen-fueled combustion for micro-thermophotovoltaic," Energy, Elsevier, vol. 239(PD).

    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. Yang, Xiao & Yang, Wenming & Dong, Shikui & Tan, Heping, 2020. "Flame stability analysis of premixed hydrogen/air mixtures in a swirl micro-combustor," Energy, Elsevier, vol. 209(C).
    2. Zuo, Wei & E, Jiaqiang & Hu, Wenyu & Jin, Yu & Han, Dandan, 2017. "Numerical investigations on combustion characteristics of H2/air premixed combustion in a micro elliptical tube combustor," Energy, Elsevier, vol. 126(C), pages 1-12.
    3. Zuo, Wei & E, Jiaqiang & Peng, Qingguo & Zhao, Xiaohuan & Zhang, Zhiqing, 2017. "Numerical investigations on a comparison between counterflow and coflow double-channel micro combustors for micro-thermophotovoltaic system," Energy, Elsevier, vol. 122(C), pages 408-419.
    4. Aravind, B. & Khandelwal, Bhupendra & Ramakrishna, P.A. & Kumar, Sudarshan, 2020. "Towards the development of a high power density, high efficiency, micro power generator," Applied Energy, Elsevier, vol. 261(C).
    5. Tang, Aikun & Cai, Tao & Deng, Jiang & Zhao, Dan & Huang, Qiuhan & Zhou, Chen, 2019. "Experimental study on flame structure transitions of premixed propane/air in micro-scale planar combustors," Energy, Elsevier, vol. 179(C), pages 558-570.
    6. Zuo, Wei & Zhang, Yuntian & Li, Qingqing & Li, Jing & He, Zhu, 2021. "Numerical investigations on hydrogen-fueled micro-cylindrical combustors with cavity for micro-thermophotovoltaic applications," Energy, Elsevier, vol. 223(C).
    7. E, Jiaqiang & Luo, Bo & Han, Dandan & Chen, Jingwei & Liao, Gaoliang & Zhang, Feng & Ding, Jiangjun, 2022. "A comprehensive review on performance improvement of micro energy mechanical system: Heat transfer, micro combustion and energy conversion," Energy, Elsevier, vol. 239(PE).
    8. Aravind, B. & Hiranandani, Karan & Kumar, Sudarshan, 2020. "Development of an ultra-high capacity hydrocarbon fuel based micro thermoelectric power generator," Energy, Elsevier, vol. 206(C).
    9. Zuo, Wei & Li, Jing & Zhang, Yuntian & Li, Qingqing & He, Zhu, 2020. "Effects of multi-factors on comprehensive performance of a hydrogen-fueled micro-cylindrical combustor by combining grey relational analysis and analysis of variance," Energy, Elsevier, vol. 199(C).
    10. He, Ziqiang & Yan, Yunfei & Zhao, Ting & Zhang, Zhien & Mikulčić, Hrvoje, 2022. "Parametric study of inserting internal spiral fins on the micro combustor performance for thermophotovoltaic systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    11. Xiao Yang & Zhihong He & Lei Zhao & Shikui Dong & Heping Tan, 2019. "Effect of Channel Diameter on the Combustion and Thermal Behavior of a Hydrogen/Air Premixed Flame in a Swirl Micro-Combustor," Energies, MDPI, vol. 12(20), pages 1-16, October.
    12. Zuo, Wei & Li, Dexin & E, Jiaqiang & Xia, Yongfang & Li, Qingqing & Quan, Yifan & Zhang, Guangde, 2023. "Parametric study of cavity on the performance of a hydrogen-fueled micro planar combustor for thermophotovoltaic applications," Energy, Elsevier, vol. 263(PD).
    13. Aravind, B. & Khandelwal, Bhupendra & Kumar, Sudarshan, 2018. "Experimental investigations on a new high intensity dual microcombustor based thermoelectric micropower generator," Applied Energy, Elsevier, vol. 228(C), pages 1173-1181.
    14. Zhang, Zhiguo & Zhao, Dan & Ni, Siliang & Sun, Yuze & Wang, Bing & Chen, Yong & Li, Guoneng & Li, S., 2019. "Experimental characterizing combustion emissions and thermodynamic properties of a thermoacoustic swirl combustor," Applied Energy, Elsevier, vol. 235(C), pages 463-472.
    15. Peng, Qingguo & Xie, Bo & Yang, Wenming & Tang, Shihao & Li, Zhenwei & Zhou, Peng & Luo, Ningkang, 2021. "Effects of porosity and multilayers of porous medium on the hydrogen-fueled combustion and micro-thermophotovoltaic," Renewable Energy, Elsevier, vol. 174(C), pages 391-402.
    16. Tang, Aikun & Deng, Jiang & Cai, Tao & Xu, Yiming & Pan, Jianfeng, 2017. "Combustion characteristics of premixed propane/hydrogen/air in the micro-planar combustor with different channel-heights," Applied Energy, Elsevier, vol. 203(C), pages 635-642.
    17. Rashid Naseer & Huliang Dai & Abdessattar Abdelkefi & Lin Wang, 2019. "Comparative Study of Piezoelectric Vortex-Induced Vibration-Based Energy Harvesters with Multi-Stability Characteristics," Energies, MDPI, vol. 13(1), pages 1-24, December.
    18. Vinay Sankar & Sreejith Sudarsanan & Sudipto Mukhopadhyay & Prabhu Selvaraj & Aravind Balakrishnan & Ratna Kishore Velamati, 2023. "Towards the Development of Miniature Scale Liquid Fuel Combustors for Power Generation Application—A Review," Energies, MDPI, vol. 16(10), pages 1-41, May.
    19. Jiaqiang, E. & Zuo, Wei & Liu, Xueling & Peng, Qingguo & Deng, Yuanwang & Zhu, Hao, 2016. "Effects of inlet pressure on wall temperature and exergy efficiency of the micro-cylindrical combustor with a step," Applied Energy, Elsevier, vol. 175(C), pages 337-345.
    20. Aravind Muraleedharan & Jithin Edacheri Veetil & Akram Mohammad & Sudarshan Kumar & Ratna Kishore Velamati, 2021. "Effect of Burner Wall Material on Microjet Hydrogen Diffusion Flames near Extinction: A Numerical Study," Energies, MDPI, vol. 14(24), pages 1-24, December.

    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:215:y:2021:i:pa:s036054422032168x. 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.