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Influence of the degree of coal metamorphism on characteristics and conditions of ignition of coal-water fuel drops

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Thermophysics and Aeromechanics Aims and scope

Abstract

The results of theoretical studies of the processes of ignition of water-coal fuel droplets based on brown coal, semi-anthracite, anthracite, long-flame and fat coal under the conditions corresponding to the combustion spaces of typical modern boilers are presented. The influence of the degree of metamorphism (structural-molecular transformation of organic matter of coal) and concentration of the organic component of the base fuel (coal) on the conditions of ignition of water-coal fuel particles is analyzed. It is determined that the type and grade of coal have a significant impact on the dynamics of fuel ignition. It was shown that in the case of ignition of coal-water fuel made of mineral coal, the ignition of particles based on semi-anthracite and anthracite is the fastest (by 20%), and ignition of coal-water fuels of fat coal is the slowest. The latter is explained by the lower heat capacity and thermal effect of pyrolysis of this fuel, as well as the relatively high heat conductivity of anthracite coal as compared to fat coal. It has been determined that drops of coal-water fuel made of brown coal ignite substantially (2 times) faster than drops prepared from coal of coal-water particles. This is due to the high content of volatiles in the composition of brown coal.

Comparative analysis of the main characteristics of the process: ignition delay times (tign) obtained by mathematical modeling and experiments showed a satisfactory agreement between the theoretical and experimental values of tign.

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References

  1. J.P. Longwell, E.S. Rubin, and J. Wilson, Coal: energy for the future, Prog. in Energy and Combust. Sci., 1995, Vol. 21, No. 4, P. 269–360.

    Article  Google Scholar 

  2. D. Zheng and M. Shi, Multiple environmental policies and pollution haven hypothesis: evidence from China's polluting industries, J. Cleaner Produc., 2017, Vol. 141, P. 295–304.

    Article  Google Scholar 

  3. A. Wang and B. Lin, Assessing CO2 emissions in China’s commercial sector: determinants and reduction strategies, J. Cleaner Product., 2017, Vol. 164, P. 1542–1552.

    Article  Google Scholar 

  4. V.V. Salomatov, The state and prospects of coal and nuclear power generation (review), Thermophysics and Aeromechanics, 2009, Vol. 16, No. 4, P. 501–513.

    Article  ADS  Google Scholar 

  5. A. Orlov, Distributional effects of higher natural gas prices in Russia, Energy Policy, 2017, Vol. 109, P. 590–600.

    Article  Google Scholar 

  6. X. Dong, G. Pi, Zh.W. Ma, and C. Dong, The reform of the natural gas industry in the PR of China, Renewable and Sustainable Energy Reviews, 2017, Vol. 73, P. 582–593.

    Article  Google Scholar 

  7. F.A. Campos, N.F. Silva, M.G. Pereir, and M.A.V. Freitas, A review of Brazilian natural gas industry: challenges and strategies, Renewable and Sustainable Energy Reviews, 2017, Vol. 75, P. 1207–1216.

    Article  Google Scholar 

  8. A. Kijo-Kleczkowska, Combustion of coal–water suspensions, Fuel, 2011, Vol. 90, Iss. 2, P. 865–877.

    Article  Google Scholar 

  9. W. Gajewski, A. Kijo-Kleczkowska, and J. Leszczyn, Analysis of cyclic combustion of solid fuels, Fuel, 2009, Vol. 88, P. 221–234.

    Article  Google Scholar 

  10. R.H. Essenhigh, K.M. Mahendra, and D.W. Shaw, Ignition of coal particles: a review, Combust. Flame, 1989, Vol. 77, No. 1, P. 3–30.

    Article  Google Scholar 

  11. M. Muto, K. Yuasa, and R. Kurose, Numerical simulation of ignition in pulverized coal combustion with detailed chemical reaction mechanism, Fuel, 2017, V. 190, P. 136–144.

    Article  Google Scholar 

  12. Z. Huang, C. Qin, and J. Gao, Theoretical analysis on CWM drop combustion history, Proc. 8th Int. Symp. Coal Slurry Fuels Preparation and Utilization, USA, Orlando, Part 1, 1986, P. 343–358.

    Google Scholar 

  13. K.J. Matthews and A.R. Jones, The effect of coal composition on coal-water slurry combustion and ash deposition characteristics, Proc. 8th Int. Symp. Coal Slurry Fuels Preparation and Utilization, USA, Orlando, Part 1, 1986, P. 388–407.

    Google Scholar 

  14. V.V. Salomatov, S.V. Syrodoy, and N.Y. Gutareva, Modelling of heat and mass transfer to solve the problem of particle ignition water-coal fuel, IOP Conf. Series: Materials Science and Engng, 2014, Vol. 66, P. 012040–1–012040–6.

    Article  Google Scholar 

  15. V.V. Salomatov and I.V. Kravchenko, Theoretical investigation of combustion of a drop of coal-water fuel, Part I, Heating stage, Gorenie i Plazmokhimiya, 2007, Vol. 5, No. 3, P. 178–188.

    Google Scholar 

  16. G.V. Kuznetsov, V.V. Salomatov, and S.V. Syrodoy, Numerical simulation of ignition of particles of a coal–water fuel, Combustion, Explosion and Shock Waves, 2015, Vol. 51, No. 4, P. 409–415.

    Article  Google Scholar 

  17. G.V. Kuznetsov, V.V. Salomatov, and S.V. Syrodoy, The influence of heat transfer conditions on the parameters characterizing the ignition of coal-water fuel particles, Thermal Engineering, 2015, No. 10, P. 703–707.

    Google Scholar 

  18. S.V. Syrodoy, G.V. Kuznetsov, and V.V. Salomatov, Effect of the shape of particles on the characteristics of the ignition of coal-water fuel, Solid Fuel Chemistry, 2015, V. 49, No. 6, P. 365–371.

    Article  Google Scholar 

  19. V.V. Salomatov, S.V. Syrodoy, and N.Yu. Gutareva, Concentration organic components in the hydrocarbon fuel particles conditions and characteristic of ignition, EPJ Web of Conferences, 2014, Vol. 76, P. 01018–1–01018-?.

    Article  Google Scholar 

  20. S.V. Syrodoy, G.V. Kuznetsov, A.V. Zhakharevich, N.Yu. Gutareva, and V.V. Salomatov, The influence of the structure heterogeneity on the characteristics and conditions of the coal-water fuel particles ignition in high temperature environment, Combust. and Flame, 2017, Vol. 80, P. 196–206.

    Article  Google Scholar 

  21. D.A. Frank-Kamenetskiy, Diffusion and Heat Transfer in Chemical Kinetics, AS USSR, Moscow, 1947.

    Google Scholar 

  22. D.B. Spalding, Some Fundamentals of Combustion, Butterworths, London, 1955.

    Google Scholar 

  23. Y.A. Kook, W.B. Seung, and E.C. Chang, Investigation of a coal-water slurry droplet exposed to hot gas stream, Combust. Sci. Technol., 2007, Vol. 97, No. 4, P. 429–448.

    Google Scholar 

  24. H. Hertz, On the evaporation of liquids, especially mercury, in vacuo, Annals of Physics, 1982, Vol. 17, No. 177, P.12.

    Google Scholar 

  25. V.I. Babiy, Coal-Dust Combustion and Calculation of Coal-Dust Flame, Energoatomizdat, Moscow, 1986.

    Google Scholar 

  26. A.A. Agroskin and V.B. Gleibman, Thermal Physics of Solid Fuel, Nedra, Moscow, 1980.

    Google Scholar 

  27. B.V. Kantorovich, Fundamentals of the Theory of Solid Fuel Combustion and Gasification, AS USSR, Moscow, 1958.

    Google Scholar 

  28. V.G. Lipovich, Chemistry and Processing of Coal, Khimiya, Moscow, 1988.

    Google Scholar 

  29. A.A. Khashchenko, O.V. Vecher, and E.I. Diskaeva, Study of temperature dependence of the rate of liquid evaporation from the free surface and rate of liquid boiling on a solid heating surface, Bull. Altai State University, 2016, Vol. 89, No. 1, P. 84–87.

    Google Scholar 

  30. G.N. Abramovich, Theory of Turbulent Jets, Fizmatgiz, Moscow, 1960.

    Google Scholar 

  31. Kh. Enkhjargal and V.V. Salomatov, Mathematical modeling of the heat treatment and combustion of a coal particle. V. Burn-up stage, J. Engng Phys. and Thermophys., 2011, Vol. 84, No. 4, P. 836–841.

    Google Scholar 

  32. V.I. Maksimov and T.A. Nagornova, Influence of heatsink from upper boundary on the industrial premises thermal conditions at gas infrared emitter operation, EPJ Web of Conferences, 2014, Vol. 76, P. 01006–1–01006-?.

    Article  Google Scholar 

  33. T.G. Shendrik, Y.V. Tamarkina, T.V. Khabarova, V.A. Kucherenko, N.V. Chesnokov, B.N. Kuznetsov, Formation of the pore structure of brown coal upon thermolysis with potassium hydroxide, Solid Fuel Chemistry, 2009, V. 43, No. 5, P. 309–313.

    Article  Google Scholar 

  34. A.A. Agroskin, Physical Properties of Coal, Metallurgizdat, Moscow, 1961.

    Google Scholar 

  35. Thermal Calculation of Boilers (Normative Method), 3rd. ed., NPO TsKTI, St. Petersburg, 1998.

  36. V.V. Pomerantsev, Fundamentals of Practical Theory of Combustion, Energoatomizdat, Leningrad, 1986.

    Google Scholar 

  37. V.M. Gremyachkin, D. Förtsch, U. Schnell, and K.R.G. Hein, A model of the combustion of a porous carbon particle in oxygen, Combust. and Flame, 2002, Vol. 130, No. 3, P. 161–170.

    Article  Google Scholar 

  38. J. Mantzaras, Catalytic combustion of syngas, Combust. Sci. and Technology, 2008, Vol. 180, P. 1137–1168.

    Article  Google Scholar 

  39. W.C. Jian, J. Wen, S. Lu, and J. Guo, Single-step chemistry model and transport coefficient model for hydrogen combustion, Sci. China. Tech. Sci., 2012, Vol. 55, P. 2163–2168.

    Article  Google Scholar 

  40. X. Zhang, T. Wang, J. Xu, S. Zheng, and X. Hou, Study on flame-vortex interaction in a spark ignition engine fueled with methane/carbon dioxide gas, J. Energ. Inst., 2018, Vol. 91, P. 133–144.

    Article  Google Scholar 

  41. P.J. Roache, Computational Fluid Dynamics, Hermosa Publishers, Albuquerque, 1976.

    MATH  Google Scholar 

  42. A.A. Samarskiy, Locally one-dimensional difference schemes on non-uniform grids, USSR Comp. Math. and Math. Phys., 1963, Vol. 3, No. 3, P. 431–466.

    MathSciNet  Google Scholar 

  43. D.A. Frank-Kamenetskiy, Temperature distribution in the reaction vessel and stationary theory of thermal explosion, Rus. J. Phys. Chem. A, 1939, Vol. 13, No. 6, P. 738–755.

    Google Scholar 

  44. A.A. Samarskiy and B.D. Moiseenko, Efficient pass-through scheme of calculation for the multi-dimensional Stefan problem, USSR Comp.Math. Phys., 1965, Vol 5, No. 5, P. 816–827.

    Google Scholar 

  45. D.A. Frank-Kamenetskiy, To the diffusion theory of heterogeneous reactions, Rus. J. Phys. Chem. A, 1939, Vol. 13, No. 6, P. 756–758.

    Google Scholar 

  46. O.M. Todes, Theory of thermal explosion. I. Thermal explosion of “zero”-order reaction, Rus. J. Phys. Chem. A, 1939, Vol. 13, No. 7, P. 868–879.

    Google Scholar 

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Authors and Affiliations

  1. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia

    V. V. Salomatov

  2. National Research Tomsk Polytechnic University, Tomsk, Russia

    G. V. Kuznetsov & S. V. Syrodoy

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  1. V. V. Salomatov
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  2. G. V. Kuznetsov
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  3. S. V. Syrodoy
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Correspondence to V. V. Salomatov.

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The study was carried out in the framework of the program of improving the competitiveness of the National Research Tomsk Polytechnic University among the world leading scientific and educational centers (Project VIU-ISHE- 300/2018).

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Salomatov, V.V., Kuznetsov, G.V. & Syrodoy, S.V. Influence of the degree of coal metamorphism on characteristics and conditions of ignition of coal-water fuel drops. Thermophys. Aeromech. 25, 773–788 (2018). https://doi.org/10.1134/S0869864318050141

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  • DOI: https://doi.org/10.1134/S0869864318050141

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