A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ignition and Flame Spread in Wood-Based Composites
This thesis investigates the ignition and flame spread behaviour of engineered wood-based materials, focusing on Medium-Density Fibreboard (MDF), Particleboard, Oriented Strand Board (OSB), and Plywood. Thermal properties, such as thermal conductivity and specific heat capacity, were analysed using Transient Plane Source (TPS) measurements. A new technique has been introduced for measuring thermal inertia as a surface property, enabling its determination through a single measurement. This method addresses the limitations of traditional approaches, which involve separate measurements of thermal conductivity, density, and specific heat capacity, often leading to compounded uncertainties. By consolidating the measurement process, the new method reduces uncertainty levels, and this improvement is particularly beneficial for applications involving ignition and flame spread. Fire behaviour was assessed through small- and medium-scale tests, including Cone Calorimeter, Single Burning Item (SBI), and Intermediate-scale façade fire tests. Results showed variations in ignition times, heat release rates (HRR), and flame spread across different materials and heat flux levels. Plywood, for example, exhibited earlier ignition and faster flame spread compared to other materials. Additionally, the study compared several classical empirical ignition models against experimental data. While the models corresponded well to the experimental data at higher heat flux levels (35 and 50 kW/m²), discrepancies were noted at lower heat flux level (20 kW/m²), indicating that factors beyond thermal inertia have a stronger influence on ignition under certain conditions. Overall, this research contributes a more practical method for measuring thermal inertia and detailed insights into the fire behaviour of wood-based materials.
Ignition and Flame Spread in Wood-Based Composites
This thesis investigates the ignition and flame spread behaviour of engineered wood-based materials, focusing on Medium-Density Fibreboard (MDF), Particleboard, Oriented Strand Board (OSB), and Plywood. Thermal properties, such as thermal conductivity and specific heat capacity, were analysed using Transient Plane Source (TPS) measurements. A new technique has been introduced for measuring thermal inertia as a surface property, enabling its determination through a single measurement. This method addresses the limitations of traditional approaches, which involve separate measurements of thermal conductivity, density, and specific heat capacity, often leading to compounded uncertainties. By consolidating the measurement process, the new method reduces uncertainty levels, and this improvement is particularly beneficial for applications involving ignition and flame spread. Fire behaviour was assessed through small- and medium-scale tests, including Cone Calorimeter, Single Burning Item (SBI), and Intermediate-scale façade fire tests. Results showed variations in ignition times, heat release rates (HRR), and flame spread across different materials and heat flux levels. Plywood, for example, exhibited earlier ignition and faster flame spread compared to other materials. Additionally, the study compared several classical empirical ignition models against experimental data. While the models corresponded well to the experimental data at higher heat flux levels (35 and 50 kW/m²), discrepancies were noted at lower heat flux level (20 kW/m²), indicating that factors beyond thermal inertia have a stronger influence on ignition under certain conditions. Overall, this research contributes a more practical method for measuring thermal inertia and detailed insights into the fire behaviour of wood-based materials.
Ignition and Flame Spread in Wood-Based Composites
Shettihalli Anand Reddy, Vikas (author)
2025-01-01
Theses
Electronic Resource
English
DDC:
624
Low flame spread wood based board products
TIBKAT | 1977
| British Library Conference Proceedings | 2007
Relation of opposed flow (creeping) flame spread with extinction/ignition
British Library Online Contents | 2004