Title: Comparison of Pyrolysis and Combustion Properties of Rigid and Plasticized Poly(vinyl chloride) // Proceedings of the Ninth International Seminar on Fire and Explosion Hazards. Vol. 2: 21-26 April 2019, Saint Petersburg, Russia
Creators: Swann J.; Ding Y.; Stoliarov S.
Organization: University of Maryland
Imprint: Saint Petersburg, 2019
Collection: Общая коллекция
Document type: Article, report
File type: PDF
Language: English
DOI: 10.18720/SPBPU/2/k19-50
Rights: Свободный доступ из сети Интернет (чтение, печать, копирование)

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A methodology to fully parameterize a comprehensive pyrolysis model is demonstrated on specimens of plasticized and rigid poly(vinyl chloride). Thermogravimetric analysis, differential scanning calorimetry and microscale combustion calorimetry were employed to characterize the kinetics and thermodynamics of thermal decomposition and heats of complete combustion of gaseous decomposition products. Controlled Atmosphere Pyrolysis Apparatus II gasification experiments were utilized to determine the thermal transport parameters within the undecomposed material and developing char layer. A recently expanded, fully verified and validated numerical framework, ThermaKin2Ds, was employed to simulate the axisymmetric gasification experiments and analyze all experimental results. The model was shown to reproduce the experimental results with a high degree of detail. Idealistic, one-dimensional simulations of burning of solid materials in the presence of external radiant heat flux, subsequently conducted using the fully parameterized comprehensive pyrolysis models, indicated that plasticized and rigid poly(vinyl chloride) have similar mass loss rate histories. However, significant differences become apparent when the mass loss rates of gaseous decomposition products are converted to heat release rate.

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