Abstract
A series of experiments on a black non-charring polymer in the low-pressure chamber is conducted under different external heat fluxes. The surface and bottom temperatures and the mass loss of the sample are measured. A parameter T p is introduced to describe the impact of pressure on the surface temperature. There is a loose layer of the char residue left with significant pyrolysis bubbles under the low heat flux, and the bubble size decreases with pressure. The parameter T p is found to exhibit a significant decline trend with increasing pressure, and the mass loss rate of the sample decreases apparently as the pressure increases. However, under a high heat flux, the char residue is denser, and the pyrolysis bubbles are not observed. The value of T p and the mass loss rate of the sample have no obvious relationship with pressure. The average pyrolysis rate is linearly proportional to pa.
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Original Russian Text © R. Zong, R. Kang, Y. Zhi, C. Liu.
Published in Fizika Goreniya i Vzryva, Vol. 54, No. 3, pp. 64–71, May–June, 2018.
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Zong, R., Kang, R., Zhi, Y. et al. Experimental Study on Pyrolysis of Black Non-Charring Polymers in the Reduced-Pressure Environment. Combust Explos Shock Waves 54, 309–315 (2018). https://doi.org/10.1134/S0010508218030073
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DOI: https://doi.org/10.1134/S0010508218030073