IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v255y2022ics0360544222015146.html
   My bibliography  Save this article

Influence of wall thermal conditions on the ignition, flame structure, and temperature behaviors in air-fuel, oxygen-enhanced, and oxy-fuel combustion under the MILD and high-temperature regimes

Author

Listed:
  • Fordoei, Esmaeil Ebrahimi
  • Boyaghchi, Fateme Ahmadi

Abstract

In this work, variations of wall thermal conditions and oxidant compositions are considered to investigate the temperature distribution, ignition process, and flame structure under MILD and high-temperature combustion (HTC) regimes. Studies are performed by the computational fluid dynamics (CFD) approach with OpenFOAM open-source code. Also, kinetic calculations by well-stirred-reactor (WSR) is used to quantitatively describe results. Results show that by the transition from HTC to the MILD regime, Tmax and Tave have intense (more than 15%) and uniform (less than 3%) drops, respectively. This indicates that moving from HTC to the MILD regime can be considered as an effective way to maintain the thermal conditions while reducing the emission of pollutants. The MILD regime is formed at Tw = 1500 K and Tw = 1700 K under air-fuel and oxy-fuel combustion, respectively, indicating that oxy-fuel MILD combustion is associated with fewer heat losses. Enhancement of heat loss creates an intense variation of reaction pathways under the MILD regime, while it is constant for HTC regime. Higher heat loss leads to diminishing the role of reactions O + H2O ⇌ 2OH and O2+CH2OH ⇌ HO2+CH2O on the ignition delay time (IDT) under insulation reactor and increases the contribution of reactions H + OH + M ⇌ H2O + M and O + CH3 ⇌ H + CH2O.

Suggested Citation

  • Fordoei, Esmaeil Ebrahimi & Boyaghchi, Fateme Ahmadi, 2022. "Influence of wall thermal conditions on the ignition, flame structure, and temperature behaviors in air-fuel, oxygen-enhanced, and oxy-fuel combustion under the MILD and high-temperature regimes," Energy, Elsevier, vol. 255(C).
    • Handle: RePEc:eee:energy:v:255:y:2022:i:c:s0360544222015146
    DOI: 10.1016/j.energy.2022.124611
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544222015146
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2022.124611?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. Sharma, Saurabh & Singh, Paramvir & Gupta, Ashish & Chowdhury, Arindrajit & Khandelwal, Bhupendra & Kumar, Sudarshan, 2020. "Distributed combustion mode in a can-type gas turbine combustor – A numerical and experimental study," Applied Energy, Elsevier, vol. 277(C).
    2. Cheong, Kin-Pang & Wang, Guochang & Wang, Bo & Zhu, Rong & Ren, Wei & Mi, Jianchun, 2019. "Stability and emission characteristics of nonpremixed MILD combustion from a parallel-jet burner in a cylindrical furnace," Energy, Elsevier, vol. 170(C), pages 1181-1190.
    3. 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.
    4. Chen, Sheng & Liu, Hao & Zheng, Chuguang, 2017. "Methane combustion in MILD oxyfuel regime: Influences of dilution atmosphere in co-flow configuration," Energy, Elsevier, vol. 121(C), pages 159-175.
    5. Tian, Ye & Zhou, Xiong & Ji, Xuanyu & Bai, Jisong & Yuan, Liang, 2019. "Applying moderate or intense low-oxygen dilution combustion to a co-axial-jet I-shaped recuperative radiant tube for further performance enhancement," Energy, Elsevier, vol. 171(C), pages 149-160.
    6. Cheong, Kin-Pang & Wang, Guochang & Si, Jicang & Mi, Jianchun, 2021. "Nonpremixed MILD combustion in a laboratory-scale cylindrical furnace: Occurrence and identification," Energy, Elsevier, vol. 216(C).
    7. Yepes, Hernando A. & Obando, Julián E. & Amell, Andrés A., 2022. "The effect of syngas addition on flameless natural gas combustion in a regenerative furnace," Energy, Elsevier, vol. 252(C).
    8. Mr. David Coady & Ian W.H. Parry & Nghia-Piotr Le & Baoping Shang, 2019. "Global Fossil Fuel Subsidies Remain Large: An Update Based on Country-Level Estimates," IMF Working Papers 2019/089, International Monetary Fund.
    9. Fordoei, E. Ebrahimi & Mazaheri, Kiumars & Mohammadpour, Amirreza, 2021. "Numerical study on the heat transfer characteristics, flame structure, and pollutants emission in the MILD methane-air, oxygen-enriched and oxy-methane combustion," Energy, Elsevier, vol. 218(C).
    10. Mardani, A. & Fazlollahi Ghomshi, A., 2016. "Numerical study of oxy-fuel MILD (moderate or intense low-oxygen dilution combustion) combustion for CH4–H2 fuel," Energy, Elsevier, vol. 99(C), pages 136-151.
    11. I. A. Grant Wilson & Iain Staffell, 2018. "Rapid fuel switching from coal to natural gas through effective carbon pricing," Nature Energy, Nature, vol. 3(5), pages 365-372, May.
    12. Tu, Yaojie & Xu, Mingchen & Zhou, Dezhi & Wang, Qingxiang & Yang, Wenming & Liu, Hao, 2019. "CFD and kinetic modelling study of methane MILD combustion in O2/N2, O2/CO2 and O2/H2O atmospheres," Applied Energy, Elsevier, vol. 240(C), pages 1003-1013.
    13. Wang, G. & Si, J. & Xu, M. & Mi, J., 2019. "MILD combustion versus conventional bluff-body flame of a premixed CH4/air jet in hot coflow," Energy, Elsevier, vol. 187(C).
    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. Shaker, Ahmad & Fordoei, E. Ebrahimi & Boyaghchi, Fateme Ahmadi, 2023. "Study of NO emission from CH4-air, oxygen-enriched, and oxy-CH4 combustion under HTC and MILD regimes: Impact of wall thermal condition in different oxidant temperature and dilution level," Energy, Elsevier, vol. 277(C).
    2. Hu, Fan & Xiong, Biao & Liu, Xuhui & Huang, Xiaohong & Li, Yu & Liu, Zhaohui, 2023. "Optimized TGA-based experimental method for studying intrinsic kinetics of coal char oxidation under moderate or intense low-oxygen dilution oxy-fuel conditions," Energy, Elsevier, vol. 265(C).
    3. Mohammadpour, Mohammadreza & Ashjaee, Mehdi & Houshfar, Ehsan, 2022. "Thermal performance and heat transfer characteristics analyses of oxy-biogas combustion in a swirl stabilized boiler under various oxidizing environments," Energy, Elsevier, vol. 261(PA).

    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. Shaker, Ahmad & Fordoei, E. Ebrahimi & Boyaghchi, Fateme Ahmadi, 2023. "Study of NO emission from CH4-air, oxygen-enriched, and oxy-CH4 combustion under HTC and MILD regimes: Impact of wall thermal condition in different oxidant temperature and dilution level," Energy, Elsevier, vol. 277(C).
    2. Cheong, Kin-Pang & Wang, Guochang & Si, Jicang & Mi, Jianchun, 2021. "Nonpremixed MILD combustion in a laboratory-scale cylindrical furnace: Occurrence and identification," Energy, Elsevier, vol. 216(C).
    3. Zhao, Zhenghong & Zhang, Zewu & Zha, Xiaojian & Gao, Ge & Li, Xiaoshan & Wu, Fan & Luo, Cong & Zhang, Liqi, 2023. "Internal association between combustion behavior and NOx emissions of pulverized coal MILD-oxy combustion affected by adding H2O," Energy, Elsevier, vol. 263(PD).
    4. Fordoei, E. Ebrahimi & Mazaheri, Kiumars & Mohammadpour, Amirreza, 2021. "Numerical study on the heat transfer characteristics, flame structure, and pollutants emission in the MILD methane-air, oxygen-enriched and oxy-methane combustion," Energy, Elsevier, vol. 218(C).
    5. Tian, Ye & Zhou, Xiong & Ji, Xuanyu & Bai, Jisong & Yuan, Liang, 2019. "Applying moderate or intense low-oxygen dilution combustion to a co-axial-jet I-shaped recuperative radiant tube for further performance enhancement," Energy, Elsevier, vol. 171(C), pages 149-160.
    6. 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.
    7. Hu, Fan & Li, Pengfei & Guo, Junjun & Liu, Zhaohui & Wang, Lin & Mi, Jianchun & Dally, Bassam & Zheng, Chuguang, 2018. "Global reaction mechanisms for MILD oxy-combustion of methane," Energy, Elsevier, vol. 147(C), pages 839-857.
    8. Sayadzadeh, Mohammad Esmaiel & Samani, Majid Riahi & Toghraie, Davood & Emami, Sobhan & Eftekhari, Seyed Ali, 2023. "Numerical study on pollutant emissions characteristics and chemical and physical exergy analysis in Mild combustion," Energy, Elsevier, vol. 278(PB).
    9. Hu, Fan & Li, Pengfei & Zhang, Tai & Zu, Daohua & Cheng, Pengfei & Liu, Yaowei & Mi, Jianchun & Liu, Zhaohui, 2022. "Experimental investigation on co-firing residual char and pulverized coal under MILD combustion using low-temperature preheating air," Energy, Elsevier, vol. 244(PA).
    10. Li, Zhiyi & Cuoci, Alberto & Sadiki, Amsini & Parente, Alessandro, 2017. "Comprehensive numerical study of the Adelaide Jet in Hot-Coflow burner by means of RANS and detailed chemistry," Energy, Elsevier, vol. 139(C), pages 555-570.
    11. Orati, Edson & Veríssimo, Anton S. & Rocha, Ana Maura A. & Costa, Fernando S. & Carvalho, João A., 2022. "Experimental investigation of flameless combustion of biodiesel," Energy, Elsevier, vol. 255(C).
    12. Kuang, Yucheng & He, Boshu & Wang, Chaojun & Tong, Wenxiao & He, Di, 2021. "Numerical analyses of MILD and conventional combustions with the Eddy Dissipation Concept (EDC)," Energy, Elsevier, vol. 237(C).
    13. Yepes, Hernando A. & Obando, Julián E. & Amell, Andrés A., 2022. "The effect of syngas addition on flameless natural gas combustion in a regenerative furnace," Energy, Elsevier, vol. 252(C).
    14. Khabbazian, Ghasem & Aminian, Javad & Khoshkhoo, Ramin Haghighi, 2022. "Experimental and numerical investigation of MILD combustion in a pilot-scale water heater," Energy, Elsevier, vol. 239(PA).
    15. Tu, Yaojie & Xu, Mingchen & Zhou, Dezhi & Wang, Qingxiang & Yang, Wenming & Liu, Hao, 2019. "CFD and kinetic modelling study of methane MILD combustion in O2/N2, O2/CO2 and O2/H2O atmospheres," Applied Energy, Elsevier, vol. 240(C), pages 1003-1013.
    16. Rohan Best & Paul J. Burke, 2020. "Energy mix persistence and the effect of carbon pricing," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 64(3), pages 555-574, July.
    17. Yue, Shen & Munir, Irfan Ullah & Hyder, Shabir & Nassani, Abdelmohsen A. & Qazi Abro, Muhammad Moinuddin & Zaman, Khalid, 2020. "Sustainable food production, forest biodiversity and mineral pricing: Interconnected global issues," Resources Policy, Elsevier, vol. 65(C).
    18. Malerba, Daniele, 2022. "Just transitions: A review of how to decarbonise energy systems while addressing poverty and inequality reduction," IDOS Discussion Papers 6/2022, German Institute of Development and Sustainability (IDOS).
    19. He, Yizhuo & Zou, Chun & Song, Yu & Luo, Jianghui & Jia, Huiqiao & Chen, Wuzhong & Zheng, Junmei & Zheng, Chuguang, 2017. "Comparison of the characteristics and mechanism of CO formation in O2/N2, O2/CO2 and O2/H2O atmospheres," Energy, Elsevier, vol. 141(C), pages 1429-1438.
    20. Argueyrolles, Robin & Delzeit, Ruth, 2022. "The interconnections between Fossil Fuel Subsidy Reforms and biofuels," Conference papers 333492, Purdue University, Center for Global Trade Analysis, Global Trade Analysis Project.

    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:255:y:2022:i:c:s0360544222015146. 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.