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Full-scale suppression tests and Computational Fluid Dynamics (CFD) simulations were carried out to investigate the effect of Water-based Fixed Fire Fighting Systems (WFFFS) on the effectiveness of longitudinal ventilation systems in resisting smoke backlayering in tunnels. Test results show that WFFFS enables longitudinal ventilation systems to resist smoke backlayering with a lower velocity than...
Carleton University’s experimental atrium and tunnel facilities share a fan chamber and three large exhaust fans. Using oxygen consumption calorimetry, the Heat Release Rates (HRR) of fires in either of these facilities can be calculated. This paper focuses on the design of the instrumentation in the fan chamber, which was carried out using the Fire Dynamics Simulator (FDS) and manual velocity measurements...
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