Fire Development Modelling of Engineered Wood (Pyroboard)
In fire safety of buildings and fire investigation, mathematical modelling is increasingly used as an alternative or in addition to physical fire tests. The relevance of modelling outputs is affected by the relevance of input data. The aim of the project is to obtain validated data for the thermal degradation and combustion applicable in CFD fire simulations and focuses on a group of engineered wood board materials that surround us in all types of buildings and contribute to fire development.
Project runs since July 2019 in cooperation of the University Centre of Energy Efficient Buildings, the Technical Institute of Fire Protection and the University of Chemical Technology. The experimental part is complex: materials are investigated from microscopic and small scales, where the material elemental composition and material characteristics at normal and elevated temperatures are determined, to large-scale tests in a furniture calorimeter. Large-scale tests will be used mainly for the material characteristics optimization and validation. As a result, a methodology will be developed to describe how the material should be put in model so that results of thermal decomposition model correspond to reality as much as possible.
Although the strength of the project lies mainly in the complex scope, multiple optimizations of values and subsequent validation by fire tests of various scales, the data from partial outputs are also valuable. For less detailed CFD analyses, validated data such as heat release rate, mass loss rate or combustion products composition of large furniture assemblies, which are performed at UCEEB, are worldwide desired.
This project is supported by the Ministry of the Interior of the Czech Republic programme IMPAKT 1 – Strategic support
of Czech safety research development 2019–2025.