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Abstract
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.
Original language | English |
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Title of host publication | Proceedings of the I Forum Wood Building Baltic, 2019 |
Editors | Targo Kalamees, Alar Just, Meeli Semjonov, Anu Teder, Merili Deemant |
Place of Publication | Tallinn |
Publisher | Tallinna Tehnikaülikool |
Number of pages | 8 |
ISBN (Print) | 978-9949-83-398-6 |
Publication status | Published - 1 Mar 2019 |
MoE publication type | A4 Article in a conference publication |
Event | Forum Wood Building Baltic - Tallinn, Estonia Duration: 27 Feb 2019 → 1 Mar 2019 |
Conference
Conference | Forum Wood Building Baltic |
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Country/Territory | Estonia |
City | Tallinn |
Period | 27/02/2019 → 01/03/2019 |
Keywords
- Charring
- Pine wood
- Pyrolysis modelling
- Spruce wood
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Dive into the research topics of 'A Model for Pyrolysis and Oxidation of Two Common Structural Timbers'. Together they form a unique fingerprint.Projects
- 1 Finished
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Fire-safe materials by pyrolysis modelling
Hostikka, S., Adibaskoro, T., Cummings, E., Makowska, M., Naji Nassajfar, M. & Rinta-Paavola, A.
01/09/2016 → 31/12/2020
Project: Academy of Finland: Other research funding