Abstract
In this work we created a numerical model of the ISO 13785-2 test setup for testing the fire behaviour of building facade systems, and used the model to simulate the thermal environment on the facade. The model, created using Fire Dynamics Simulator -software, was first validated using the experimental data by Yoshioka et al.(2012). Next, the sensitivity of the facade heat fluxes on the geometrical and model parameters was studied, revealing for instance that the size of the combustion chamber window will influence the thermal exposure high above the window. Finally, the model was used to estimate the thickness of non-combustible insulation layer that is needed to protect combustible materials from melting or decomposition. © Owned by the authors, published by EDP Sciences, 2016 Language: en
Highlights
The development of test standards and fire safety classification basis for building façade products is currently an active topic of research and standardization activities in Europe and globally
In this work we created a numerical model of the ISO 13785-2 test setup for testing the fire behaviour of building façade systems, and used the model to simulate the thermal environment on the façade
While the full-scale tests with alternative details cannot be avoided, many of the phenomena can be studied using Computational Fluid Dynamics simulations
Summary
The development of test standards and fire safety classification basis for building façade products is currently an active topic of research and standardization activities in Europe and globally. The development of such standards requires investigation of the test characteristics, sensitivities of the produced fire exposure to the geometrical and environmental parameters, and the suitability of the test for the range of intended products. The goal of this work was to prepare a validated model for the ISO 13785-2 test setup and use the model to investigate the sensitivity of the fire exposure at the façade to the physical and numerical parameters. This research did not explore the hazards related to real fires, such as the fire spreading to the apartments above the fire or to adjacent buildings
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