THERMAL SCIENCE

International Scientific Journal

Liu Liu

,

Yu-Shi Wen

,

Dan Wang

,

Hong Yang

,

Xiao-Gan Dai

,

Chang-Gen Feng

,

Qiang Gan

,

Yang Zhou

A NEW HIGH-IRRADIATION IGNITION TEST AND DIAGNOSIS METHOD OF SOLID COMBUSTIBLES

ABSTRACT
This study proposes a new high-irradiation ignition test method for studying the py-rolysis and ignition of solid combustibles under extreme scenarios (> 0.1 MW/m2). The irradiation system that generates a 10 cm octagonal spot of dynamic irradia-tion with a peak flux of 1.25 MW/m2 and 95% uniformity, and a chamber with well-controlled ambient conditions and advanced diagnostics coupled with a multi-physical parameter measurement system. A verification test was conducted on cor-rugated cardboard using the proposed test method, resulting in high-quality out-comes with lower coefficients of variation compared to previous test methods. This improved approach provides a better procedure for testing and understanding the ignition threshold of combustible materials and laying the foundation for the de-velopment of advanced models of material pyrolysis and ignition processes under high irradiation.
KEYWORDS
High heat flux, irradiation, pyrolysis, ignition, fire
PAPER SUBMITTED: 2023-01-16
PAPER REVISED: 2023-04-25
PAPER ACCEPTED: 2023-04-27
PUBLISHED ONLINE: 2023-05-13
DOI REFERENCE: https://doi.org/10.2298/TSCI230116095L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 6, PAGES [5103 - 5113]
REFERENCES
  1. Ma Y., et al., Effect of sample thickness on concurrent steady spread behavior of floor- and ceiling flames, Combust Flame, 233 (2021), pp. 111600. doi.org/10.1016/j.combustflame.2021.111600
  2. Lin S., et al., Piloted Ignition of Cylindrical Wildland Fuels Under Irradiation, Frontiers in Mechanical Engineering, 5 (2019), pp. doi.org/10.3389/fmech.2019.00054
  3. Tian Z., et al., Numerical Investigation of Early Fireball of Strong Explosion for Different Altitudes
  4. Glasstone S., et al. The effects of nuclear weapons, Department of Defense, Washington DC, USA, 1977
  5. Zhang Y. X., et al., Damage to aircraft composite structures caused by directed energy system: A literature review, Defence Technology, 17 (2021), 4, pp. 1269-1288. doi.org/10.1016/j.dt.2020.08.008
  6. White R. B., et al., Effect of aluminum on heat flux from a simulated rocket propellant flame, J Propul Power, 23 (2007), 6, pp. 1255-1262
  7. Cressault Y., et al., Properties of air-aluminum thermal plasmas, Journal of Physics D: Applied Physics, 45 (2012), 26, pp. 265202
  8. Svetsov V., et al., Thermal radiation from impact plumes, Meteorit Planet Sci, 54 (2019), 1, pp. 126-141. doi.org/10.1111/maps.13200
  9. Milosavljevic I., et al., Cellulose Thermal Decomposition Kinetics: Global Mass Loss Kinetics, Ind Eng Chem Res, 34 (1995), 4, pp. 1081-1091. doi.org/10.1021/ie00043a009
  10. Martin S., Diffusion-controlled ignition of cellulosic materials by intense radiant energy, Symposium on Combustion, 10 (1965), 1, pp. 877-896. doi.org/10.1016/S0082-0784(65)80232-6
  11. Lopatina G. G., et al., "Opticheskie Pechi" (Optical Furnaces), Izd. Metallurgiya, Moscow, 1969.
  12. Kashiwagi T., Experimental observation of radiative ignition mechanisms, Combust Flame, 34 (1979), pp. 231-244. doi.org/10.1016/0010-2180(79)90098-1
  13. Kashiwagi T., Effects of sample orientation on radiative ignition, Combust Flame, 44 (1982), 1, pp. 223-245. doi.org/10.1016/0010-2180(82)90075-X
  14. Nakamura Y., et al., Effects of sample orientation on nonpiloted ignition of thin poly(methyl methacrylate) sheet by a laser: 1. Theoretical prediction, Combust Flame, 141 (2005), 1, pp. 149-169. doi.org/10.1016/j.combustflame.2004.12.014
  15. Gotoda H., et al., Effects of sample orientation on nonpiloted ignition of thin poly(methyl methacrylate) sheets by a laser: 2. Experimental results, Combust Flame, 145 (2006), 4, pp. 820-835. doi.org/10.1016/j.combustflame.2006.01.008
  16. Nakamura Y., et al., Irradiated ignition of solid materials in reduced pressure atmosphere with various oxygen concentrations - for fire safety in space habitats, Adv Space Res, 41 (2008), 5, pp. 777-782. doi.org/10.1016/j.asr.2007.03.027
  17. Wang S., et al., Smoldering ignition using a concentrated solar irradiation spot, Fire Safety J, 129 (2022), pp. 103549. doi.org/10.1016/j.firesaf.2022.103549
  18. Brown A. L., et al., Datasets for material ignition from high radiant flux, Fire Safety J, 120 (2021), pp. 103131
  19. Engerer J. D., et al., Pyrolysis Under Extreme Heat Flux Characterized by Mass Loss and Three-Dimensional Scans.,4th Thermal and Fluids Engineering Conference, Albuquerque,2019,
  20. Quintiere J. G., A theoretical basis for flammability properties, Fire and Materials: An International Journal, 30 (2006), 3, pp. 175-214
  21. McKinnon M. B., et al., Development of a pyrolysis model for corrugated cardboard, Combust Flame, 160 (2013), 11, pp. 2595-2607. doi.org/10.1016/j.combustflame.2013.06.001
  22. Madding R., Finding R-values of stud frame constructed houses with IR thermography, Proc. InfraMation, 2008 (2008), pp. 261-277
  23. Hurley M. J., et al., SFPE handbook of fire protection engineering: Springer. 2015
  24. Blasi C. D., et al., Numerical model of ignition processes of polymeric materials including gas-phase absorption of radiation, Combust Flame, 83 (1991), 3, pp. 333-344. doi.org/10.1016/0010-2180(91)90080-U
  25. Kasymov D., et al., Studying the effect of fire retardant coating on the fire hazard characteristics of wood using infrared thermography, EPJ Web of Conferences, 159 (2017), pp. 18. doi.org/10.1051/epjconf/201715900018
  26. Brown A., et al., Megafire Initiation from Extreme Incident Radiative Heat Flux., the Megafire Workshop, Albuquerque,2019,
  27. Kuznetsov V., et al., Ignition of various wood species by radiant energy, Combustion Explosion and Shock Waves - COMBUST EXPL SHOCK WAVES-ENGL, 47 (2011), pp. 65-69. doi.org/10.1134/S0010508211010096
  28. Brown A., et al., Diagnostics and Testing to Assess the Behavior of Organic Materials at High Heat Flux., The 2017 International Association of Fire Safety Science Symposium, Lund,2016
  29. Lai D. Experimental and Model Study on Pyrolysis and Ignition Temperature of PMMA under Wind Influence, PhD. thesis, University of Science and Technology of China, Hefei, China, 2021.
  30. Gong J., et al., Effect of moisture content on thermal decomposition and autoignition of wood under power-law thermal radiation, Appl Therm Eng, 179 (2020), pp. 115651
  31. Tewarson A., SFPE handbook of fire protection engineering, National Fire Protection Association, Quincy, MA, 2002
  32. Wang X., et al., Soot formation during biomass pyrolysis: Effects of temperature, water-leaching, and gas-phase residence time, J Anal Appl Pyrol, 134 (2018), pp. 484-494
  33. Li N., et al., Characteristics of aerosol formation and emissions during corn stalk pyrolysis, Energies, 13 (2020), 22, pp. 5924
  34. Kim W., et al., Characterization of spectral radiation intensities from standard test fires for fire detection, Nist Special Publication Sp, (2001), pp. 91-106
PDF VERSION [DOWNLOAD]
A new high-irradiation ignition test and diagnosis method of solid combustibles

2025 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence