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Numerical study of characteristics on NO formation in methane MILD combustion with simultaneously hot and diluted oxidant and fuel (HDO/HDF)

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  • He, Yizhuo
  • Zou, Chun
  • Song, Yu
  • Liu, Yang
  • Zheng, Chuguang

Abstract

Recently, MILD combustion without preheated air was achieved using a parallel jet burner, in which the fuel and air streams can entrain the hot exhaust gas simultaneously before their mixing. In this manuscript, the mechanisms of the effect of the entrainment ratio on NO formation in the MILD combustion without preheated air were critically focused on using OPPDIF with simultaneously diluted and preheated oxidant and fuel (HDO/HDF), in addition the effects of the inlet temperature and equivalence ratio are discussed. The variations of the NO production index at (1) Tin = 1300 K with the range of Kv from 1 to 8 (2) φ = 1 with the range of Tin from 1000 K to 1300 K (3) Tin = 1300 K with the range of φ from 0.4 to 1.6 were numerically investigated. The results indicate that the NO emission decreases sharply when Kv increases from 1 to 3. This is attributed to the decrease in the NO production rate of N + OH <=> NO + H, the reduction of HNO to NO and the conversion of NO to NO2. When the entrainment ratio increases from 1 to 8, the pyrolysis zone is depressed and the reaction zone is broadened, resulting in an increase in OH consumption. Therefore, N + OH <=> NO + H and HNO + OH <=> NO + H2O sharply decrease in the production of NO. The mutual conversion between NO2 and NO is significantly enhanced in the MILD combustion mode without the preheated air. Consequently, NO2 + H <=> NO + OH makes the largest contribution to NO formation in the reaction region of the MILD combustion. The contribution of N + O2 <=> NO + O in NO formation increases because CH + N2 <=> HCN + N plays an increasingly important role in NO formation. Moreover, both of the inlet temperature and equivalence ratio enhance the NO formation, CH + N2 <=> HCN + N are responsible for this effects.

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  • He, Yizhuo & Zou, Chun & Song, Yu & Liu, Yang & Zheng, Chuguang, 2016. "Numerical study of characteristics on NO formation in methane MILD combustion with simultaneously hot and diluted oxidant and fuel (HDO/HDF)," Energy, Elsevier, vol. 112(C), pages 1024-1035.
    • Handle: RePEc:eee:energy:v:112:y:2016:i:c:p:1024-1035
    DOI: 10.1016/j.energy.2016.07.020
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    References listed on IDEAS

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    1. Gao, Xuan & Duan, Fei & Lim, Seng Chuan & Yip, Mee Sin, 2013. "NOx formation in hydrogen–methane turbulent diffusion flame under the moderate or intense low-oxygen dilution conditions," Energy, Elsevier, vol. 59(C), pages 559-569.
    2. Wang, Feifei & Li, Pengfei & Mei, Zhenfeng & Zhang, Jianpeng & Mi, Jianchun, 2014. "Combustion of CH4/O2/N2 in a well stirred reactor," Energy, Elsevier, vol. 72(C), pages 242-253.
    3. Zhang, Chi & Hu, Ge & Liao, Shiyong & Cheng, Qian & Xiang, Chenxuan & Yuan, Chun, 2016. "Comparative study on the effects of nitrogen and carbon dioxide on methane/air flames," Energy, Elsevier, vol. 106(C), pages 431-442.
    4. Lille, Simon & Blasiak, Wlodzimierz & Jewartowski, Marcin, 2005. "Experimental study of the fuel jet combustion in high temperature and low oxygen content exhaust gases," Energy, Elsevier, vol. 30(2), pages 373-384.
    5. Arghode, Vaibhav K. & Gupta, Ashwani K., 2010. "Effect of flow field for colorless distributed combustion (CDC) for gas turbine combustion," Applied Energy, Elsevier, vol. 87(5), pages 1631-1640, May.
    6. Yang, Weihong & Blasiak, Wlodzimierz, 2005. "Numerical study of fuel temperature influence on single gas jet combustion in highly preheated and oxygen deficient air," Energy, Elsevier, vol. 30(2), pages 385-398.
    7. Yu, Byeonghun & Kum, Sung-Min & Lee, Chang-Eon & Lee, Seungro, 2013. "Effects of exhaust gas recirculation on the thermal efficiency and combustion characteristics for premixed combustion system," Energy, Elsevier, vol. 49(C), pages 375-383.
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    8. Hu, Fan & Li, Pengfei & Cheng, Pengfei & Shi, Guodong & Gao, Yan & Liu, Yaowei & Ding, Cuijiao & Yang, Chao & Liu, Zhaohui, 2023. "Comparative study on homogeneous NO-reburning in flameless and swirl flame combustion," Energy, Elsevier, vol. 283(C).
    9. Wang, Qiangxiang & Xie, Mengqian & Tu, Yaojie & Liu, Hao & Li, Weijie, 2022. "Numerical study of fuel-NO formation and reduction in a reversed flow MILD combustion furnace firing ammonia-doped methane," Energy, Elsevier, vol. 252(C).

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