A Model for Pyrolysis and Oxidation of Two Common Structural Timbers

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

34 Lataukset (Pure)

Abstrakti

The reduced cross section method for the calculation of timber structures’ fire resistance is based on empirical and numerical assessment of charring propagation. The current work aims to construct a model for the pyrolysis and oxidation of spruce and pine woods to allow coupled simulations of cross section reduction and burning rate in fire models. A pyrolysis model for these woods is formulated based on thermogravimetric analysis (TGA), and supported by heat of pyrolysis and heat of combustion measurements by differential scanning calorimetry (DSC) and microscale combustion calorimetry (MCC), respectively. The results from small scale measurements (TGA, DSC and MCC) are consistent with each other. Therefore, heat of pyrolysis and heat of combustion was determined for the wood primary components by fitting a simulation into these experimental results. As a future work, cone calorimeter experiments are performed to optimize material properties and validate the model, and necessity of introducing an oxidation model is examined.
AlkuperäiskieliEnglanti
OtsikkoProceedings of the I Forum Wood Building Baltic, 2019
ToimittajatTargo Kalamees, Alar Just, Meeli Semjonov, Anu Teder, Merili Deemant
JulkaisupaikkaTallinn
KustantajaTallinn University of Technology
Sivumäärä8
ISBN (painettu)978-9949-83-398-6
TilaJulkaistu - 1 maaliskuuta 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaForum Wood Building Baltic - Tallinn, Viro
Kesto: 27 helmikuuta 20191 maaliskuuta 2019

Conference

ConferenceForum Wood Building Baltic
MaaViro
KaupunkiTallinn
Ajanjakso27/02/201901/03/2019

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