01865nab a2200217 4500 20260520001111.0 260224s2015 xxu ing Inglés Limit-Based Fire Hazard Model for Evaluating Tunnel Life Safety mayo 2015 14/09/2015 ; 14/09/2015 29 p. ; 585-614 Transcripción del resúmen realizada por el autor: Despite the simple one-dimensional symmetry of a tunnel with a longitudinal ventilation flow, risk analysis often comprises resource intensive and complex calculations. The purpose of this article is to present a simple yet precise limit-based model for assessing the possibility for a safe tunnel evacuation. To estimate the model uncertainty, fire dynamics calculations were compared to experimental data. The calculations performed well compared to experimental test data, showing an average difference between 5 and 40% in predicting the time available for evacuation, when criteria for visibility, air temperature, CO, CO2 and O2 concentration and heat flux were calculated. For steadily growing fires, visibility showed a low sensitivity to variability in input parameters with a relative difference at 9% compared to experimental data. Due to several factors it was not possible to estimate the accuracy of HCN calculations. Visualizing the hazards in a time–distance diagram revealed visibility to be the key indicator for calculating ASET for a broad set of plausible input parameters. This resulted in a simple expression for calculating ASET and consequently a simple condition for evaluating life safety. 3 Fire Technology 51 ARTICULO Gehandler, J. 54795 Eymann, L. 54796 Regeffe, M. 54797 189173 189173 0 0 0 0 256992 BAAB BAAB 2026-03-06 200061405 0 200061405 2026-03-06 00:19:23 2026-03-06 ARTICULO