Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Computational modelling of enclosure fires with exposed timber surfaces
Master thesis in Fire Safety Engineering ; In an era where sustainable materials like timber are becoming more prevalent in building design and construction, it's crucial to understand and accurately model the behavior of structure fires involving these materials One of the challenges that fire engineers face is being able to predict how the progression of a room fire with exposed wood surfaces develops. This thesis therefore focuses on using computational fluid dynamics (CFD), specifically the Fire Dynamics Simulator (FDS) software, to model enclosure fires involving exposed Cross-Laminated Timber (CLT) surfaces. The existing body of research exploring the use of CFD software for modelling fires involving exposed timber surfaces is limited. Additionally, the accuracy of results from these studies varies widely. However, interest in this area of research is growing due to its potential in facilitating safe, economically viable, and aesthetically pleasing building solutions. An investigation of the subject is here presented, aiming to contribute to this emerging field and provide insight into existing knowledge, modelling methodology, and result analysis. FDS was used to model a previously conducted compartment fire experiment involving CLT, based on the work by Bartlett et al. [1]. The simulation incorporated a pyrolysis model provided by Rinta-Paavola & Hostikka [2] to model the release of combustible gases from the exposed timber. Accuracy validation of the FDS model became feasible by comparing the model results with the experimental data. This comparison also facilitated the identification of the model's limitations and provided a basis for subsequent discussions on potential enhancements in the model. The results from the simulation were inconclusive. The heat release rate (HRR) aligned with the experimental data at an acceptable level, but the temperature readings inside the CLT elements and compartment gas-phase temperature provided insufficient output. The mass loss rate (MLR) from the CLT showed a ...
Computational modelling of enclosure fires with exposed timber surfaces
Master thesis in Fire Safety Engineering ; In an era where sustainable materials like timber are becoming more prevalent in building design and construction, it's crucial to understand and accurately model the behavior of structure fires involving these materials One of the challenges that fire engineers face is being able to predict how the progression of a room fire with exposed wood surfaces develops. This thesis therefore focuses on using computational fluid dynamics (CFD), specifically the Fire Dynamics Simulator (FDS) software, to model enclosure fires involving exposed Cross-Laminated Timber (CLT) surfaces. The existing body of research exploring the use of CFD software for modelling fires involving exposed timber surfaces is limited. Additionally, the accuracy of results from these studies varies widely. However, interest in this area of research is growing due to its potential in facilitating safe, economically viable, and aesthetically pleasing building solutions. An investigation of the subject is here presented, aiming to contribute to this emerging field and provide insight into existing knowledge, modelling methodology, and result analysis. FDS was used to model a previously conducted compartment fire experiment involving CLT, based on the work by Bartlett et al. [1]. The simulation incorporated a pyrolysis model provided by Rinta-Paavola & Hostikka [2] to model the release of combustible gases from the exposed timber. Accuracy validation of the FDS model became feasible by comparing the model results with the experimental data. This comparison also facilitated the identification of the model's limitations and provided a basis for subsequent discussions on potential enhancements in the model. The results from the simulation were inconclusive. The heat release rate (HRR) aligned with the experimental data at an acceptable level, but the temperature readings inside the CLT elements and compartment gas-phase temperature provided insufficient output. The mass loss rate (MLR) from the CLT showed a ...
Computational modelling of enclosure fires with exposed timber surfaces
Granum, Martin Dragland (Autor:in)
01.01.2023
Hochschulschrift
Elektronische Ressource
Englisch
Auto-extinction of engineered timber: Application to compartment fires with exposed timber surfaces
| British Library Online Contents | 2017
Auto-extinction of engineered timber: Application to compartment fires with exposed timber surfaces
| British Library Online Contents | 2017
Auto-extinction of engineered timber: Application to compartment fires with exposed timber surfaces
| British Library Online Contents | 2017
NUMERICAL SIMULATION OF FIRES WITH EXPOSED TIMBER
| TIBKAT | 2023