Numerical Study of a Pulverized Coal Combustion Process In an Industrial Entrained Flow Reactor

Authors

1 Assistant Professor, Mech. Eng., Dashtestan Branch, Islamic Azad University, Dashtestan, Iran

2 PH,D student in Mechanical Engineering-Dashtestan Islamic Azad University

Abstract

In this study, a three dimensional numerical simulation of an industrial entrained flow combustion reactor has been conducted. The governing equations and reactions are implemented and the operating parameters are considered according to the experimental works. The results obtained from the numerical simulation are validated by comparing with existing experimental data and similar published papers. Four different devolatilization models are investigated and the simulation results are compared to each other. The obtained results show that although the Kobayashi model has a higher calculation time, it provides more accurate results compare to the experimental results. The effect of increasing/decreasing of injected coal particle sizes are studied. The results show that increasing of the coal particle sizes from 55 to 120 μm has led to a decrease in the gas temperature inside the reactor. By reducing the average coal particle size from 55 to 30μm, the gas temperature close to the flame has increased from 1800 K to 1900 K.

Keywords

Main Subjects

References

[1] B. S. R. o. W. E. V (2022) Smil. Energy Transitions: Global and National Perspectives, Appendix A.
[2] B. reports. BP reports: The Energy Roadmap - Setting the Direction for 21st Century Energy, (2021) http://www.bp.com.
[3] E. P. Agencyp Bituminous And Subbituminous Coal Combustion, EPA, (2021) www.epa.gov.
[4] S. Shoeibi, M. Saemian, M. Khiadani, H. Kargarsharifabad, S. Ali Agha Mirjalily, Energy Convers. Manag., (2023), 276, 116504. DOI: https://doi.org/10.1016/j.enconman.2022.116504
[5] R. Dhivagar, S. Shoeibi, H. Kargarsharifabad, M. H. Ahmadi, M. Sharifpur, Energy Sci. Eng., (2022), 10 (8), 3154-3166.
[6] S. Khanmohammadi, K. Atashkari, R. Kouhikamali (2016) Int. J. Chem. Eng.
[7] م. برجی بداغی, ک. آتشکاری, ص. قربانی, ن. نریمان زاده,  (2017)مکانیک سازه ها و شاره ها , 7 (1), 113-133. DOI: 10.22044/jsfm.2017.940
[8] P. V. Danckwerts (1995) Chem. Eng. Sci., 50 (24), 3857-3866.
[9] Y. Li, L. Yan, B. Yang, W. Gao, M. R. Farahani (2018) Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 40 (5), 544-548.
[10] A Comparative Study of Euler-Euler and Euler-Lagrange Modelling of Wood Gasification in a Dense Fluidized Bed, Springer Berlin Heidelberg, Berlin, Heidelberg.
[11] T. M. Ismail, M. A. El-Salam, E. Monteiro, A. Rouboa (2016) Appl. Therm. Eng., 106, 1391-1402.
[12] E. Monteiro, T. M. Ismail, A. Ramos, M. A. El-Salam, P. Brito, A. Rouboa (2017) Appl. Therm. Eng, 123, 448-457.
[13] Y. C. Choi, X. Y. Li, T. J. Park, J. Kim, J. Lee, Fuel, (2001), 80 (15), 2193-2201.
[14] X. Ku, T. Li, T. Løvås (2014) Energy & Fuels, 28 (8), 5184-5196. DOI: 10.1021/ef5010557
[15] S. Park, H. Jeong, J. Hwang (2015) Energies, 8 (5), 4216-4236.
[16] H. J. Jeong, D. K. Seo, J. Hwang (2014) Appl. Energy, 123, 29-36. DOI: https://doi.org/10.1016/j.apenergy.2014.02.026
[17] ا. رحمتی, ب. آقائی, مجله مهندسی مکانیک, 2020, 29 (4), 11-16.
[18] Q. Wang, E. Wang, O. P. Chionoso (2022) Energy, 238, 121722.
[19] A. Hosseini, J. L. T. Hage, K. Meijer, E. Offerman, Y. Yang (2023) Processes, 11 (3), 839.
[20] Z. Yuan, Z. Chen, L. Bian, X. Wu, B. Zhang, J. Li, Y. Qiao, Z. Li (2023) Energy, 275, 127418. DOI: https://doi.org/10.1016/j.energy.2023.127418
[21] ع. بهاری, ک. آتشکاری, ج. م. مهر, Modares Mechanical Engineering, (2018), 18 (6).
[22] J. Macphee, University of Canterbury Christchurch, New Zealand 2010.
[23] A. A. F. Peters, R. Weber (1997) CST  J , 122 (1-6), 131-182. DOI: 10.1080/00102209708935608
[24] U. S. D. o. Energy (2007) Energy Tips – Process Heating, U.S. Department of Energy.
[25] J. Liu, S. Chen, Z. Liu, K. Peng, N. Zhou, X. Huang, T. Zhang, C. Zheng (2012) Ind. Eng. Chem. Res, 51 (2), 691-703.
[26] Ansys-Fluent, Research Mechanical, Help System, ANSYS, Inc., Coupled Field Analysis Guide.
[27] M. Kumar, A. F. Ghoniem (2012) Energy & Fuels, 26 (1), 464-479. DOI: 10.1021/ef2008858
[28] C. T. Crowe, M. P. Sharma, D. E. Stock (1997) J. Fluids Eng., 99 (2), 325-332. DOI: 10.1115/1.3448756
[29] W.-H. Chen, C.-J. Chen, C.-I. Hung, C.-H. Shen, H.-W. Hsu (2013) Appl. Energy, 112, 421-430. DOI: https://doi.org/10.1016/j.apenergy.2013.01.034
[30] X. Lu, T. Wang, Fuel (2013), 108, 620-628. DOI: https://doi.org/10.1016/j.fuel.2013.02.024
[31] Z. Y. Feng, Z. Liu, X. Fang, F. H. Zhang, B. Z. Peng, Z. J. Gong (2016) Modeling of Cold Flow Field in an Entrained-Flow Gasifier with Single or Multiple Injectors.
[32] C. Yin, L. A. Rosendahl, S. K. Kær, Fuel (2011), 90 (7), 2519-2529. DOI: https://doi.org/10.1016/j.fuel.2011.03.023
[33] M. A. Yazdanpanah Jahromi, K. Atashkari, M. Kalteh (2019) Int. J. Energy Res.
[34] A. Vuokila;, O. Mattila;, R. L. Keiski;, E. Muurinen;(2016) International Flame Research Foundation, 1-16.
[35] A. Labbafan, H. Ghassemi (2016) Energy Convers. Manag., 2016, 112, 337-349. DOI: https://doi.org/10.1016/j.enconman.2016.01.040
[36] H. Watanabe, M. Otaka, Fuel (2006, 85 (12), 1935-1943. DOI: https://doi.org/10.1016/j.fuel.2006.02.002
[37] M. Vascellari, S. Schulze, P. Nikrityuk, D. Safronov, C. Hasse, Flow, Flow Turbul. Combust., 2014, 92 (1), 319-345. DOI: 10.1007/s10494-013-9467-7
[38] M. M. Baum, P. J. Street, Combust. Sci. Technol., 1971, 3 (5), 231-243. DOI: 10.1080/00102207108952290
[39] J. Khan, T. Wang, IJCCE, 2013, Vol.02No.03, 19. DOI: 10.4236/ijcce.2013.23005.
[40] K. K. Pillai, JIE, 1981, 54, 142-150.
[41] J. M. Jones, A. R. Lea-Langton, L. Ma, M. Pourkashanian, A. Williams (2014) Pollutants Generated by the Combustion of Solid Biomass Fuels, Springer.
[42] T. Fletcher, A. Kerstein, R. Pugmire, M. Solum, D. Grant (1992) A chemical percolation model for coal devolatilization: Milestone report, Sandia National Labs., Livermore, CA (United States).
[43] R. S. Jupudi, V. Zamansky, T. H. Fletcher, Energy & Fuels, 2009, 23 (6), 303067-63. DOI: 10.1021/ef9001346
[44] A. Silaen, T. Wang, Int. J. Heat Mass Transf.(2010), 53 (9), 2074-2091. DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2009.12.047
[45] M. Saha, A. Chinnici, B. B. Dally, P. R. Medwell, (2015) Energy & Fuels, 29 (11), 7650-7669. DOI: 10.1021/acs.energyfuels.5b01644
[46] H. Kobayashi, J. B. Howard, A. F. Sarofim, Symposium (International) on Combustion (1977), 16 (1), 411-425. DOI: https://doi.org/10.1016/S0082-0784(77)80341-X
[47] C. Chen, M. Horio, T. Kojima (2000) Chem. Eng. Sci., 55 (18), 3875-3883. DOI: https://doi.org/10.1016/S0009-2509(00)00031-2
Journal of Solid and Fluid Mechanics
Volume 14, Issue 1
March and April 2024
Pages 45-62

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