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Numerical comparison of H2/air catalytic combustion characteristic of micro–combustors with a conventional, slotted or controllable slotted bluff body

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  • Yan, Yunfei
  • Liu, Ying
  • Li, Lixian
  • Cui, Yu
  • Zhang, Li
  • Yang, Zhongqing
  • Zhang, Zhien

Abstract

The flame instability and low combustion efficiency are still two vital problems to be solved in micro–combustion power field. In this work, the detailed chemical reaction mechanism of H2/O2 is used to numerical study the combustion characteristics of micro–combustors under three kinds of bluff body structures. The results show that a recirculation zone is formed in the conventional bluff body (CBB) micro–combustor, while two symmetric recirculation zones are formed in the slotted bluff body (SBB) micro–combustor and controllable slotted bluff body (CSBB) micro–combustor. Notably, the recirculation zones in the CSBB micro–combustor is significantly prolonged with the increase of controllable flow ratios. Meanwhile, the corresponding equivalence ratio reaching a maximum combustion efficiency is 0.8 in the CSBB micro–combustor, while the CBB and SBB micro–combustors reach the highest combustion efficiency at φ = 1.0. This means that the CSBB micro–combustor exhibits superior combustion performance in the fuel lean condition (φ = 0.8). Additionally, the adjustment of the controllable flow ratios can significantly affect the combustion efficiency of the CSBB micro–combustor. Moreover, the blow–off limits of CBB, SBB and CSBB micro–combustors achieve the maximum at φ = 1.0, which are about 540, 456 and 600 cm3/s, respectively. Thus, the proposed CSBB micro–combustor is of notable advantages compared with the other two micro–combustors in terms of combustion efficiency, temperature distribution, blow–off limit, and so on. Another interesting finding is that the CSBB micro–combustor with a gap width of 0.6 mm has better combustion performance. In conclusion, the controllable slotted bluff body is a good way to stabilize the flame in micro–combustors. This design offers us another way to design such kind of micro–combustors.

Suggested Citation

  • Yan, Yunfei & Liu, Ying & Li, Lixian & Cui, Yu & Zhang, Li & Yang, Zhongqing & Zhang, Zhien, 2019. "Numerical comparison of H2/air catalytic combustion characteristic of micro–combustors with a conventional, slotted or controllable slotted bluff body," Energy, Elsevier, vol. 189(C).
    • Handle: RePEc:eee:energy:v:189:y:2019:i:c:s0360544219319371
    DOI: 10.1016/j.energy.2019.116242
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    References listed on IDEAS

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    1. 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.
    2. Peng, Qingguo & E, Jiaqiang & Yang, W.M. & Xu, Hongpeng & Chen, Jingwei & Meng, Tian & Qiu, Runzhi, 2018. "Effects analysis on combustion and thermal performance enhancement of a nozzle-inlet micro tube fueled by the premixed hydrogen/air," Energy, Elsevier, vol. 160(C), pages 349-360.
    3. Baigmohammadi, Mohammadreza & Tabejamaat, Sadegh & Zarvandi, Jalal, 2015. "Numerical study of the behavior of methane-hydrogen/air pre-mixed flame in a micro reactor equipped with catalytic segmented bluff body," Energy, Elsevier, vol. 85(C), pages 117-144.
    4. Pan, J.F. & Wu, D. & Liu, Y.X. & Zhang, H.F. & Tang, A.K. & Xue, H., 2015. "Hydrogen/oxygen premixed combustion characteristics in micro porous media combustor," Applied Energy, Elsevier, vol. 160(C), pages 802-807.
    5. Yilmaz, Harun & Cam, Omer & Yilmaz, Ilker, 2017. "Effect of micro combustor geometry on combustion and emission behavior of premixed hydrogen/air flames," Energy, Elsevier, vol. 135(C), pages 585-597.
    6. Wierzbicki, Teresa A. & Lee, Ivan C. & Gupta, Ashwani K., 2014. "Combustion of propane with Pt and Rh catalysts in a meso-scale heat recirculating combustor," Applied Energy, Elsevier, vol. 130(C), pages 350-356.
    7. Fan, Aiwu & Zhang, He & Wan, Jianlong, 2017. "Numerical investigation on flame blow-off limit of a novel microscale Swiss-roll combustor with a bluff-body," Energy, Elsevier, vol. 123(C), pages 252-259.
    8. Alipoor, Alireza & Saidi, Mohammad Hassan, 2017. "Numerical study of hydrogen-air combustion characteristics in a novel micro-thermophotovoltaic power generator," Applied Energy, Elsevier, vol. 199(C), pages 382-399.
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    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 & 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).
    3. Sun, Bowen & Kang, Xin & Wang, Yu, 2020. "Numerical investigations on the methane-oxygen diffusion flame-street phenomena in a microchannel: Effects of wall temperatures, inflow rates and global equivalence ratios on flame behaviors and combu," Energy, Elsevier, vol. 207(C).
    4. 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).

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