Download presentation
Presentation is loading. Please wait.
Published byEllen Lyons Modified over 6 years ago
1
Numerical modeling of water spray suppression of conveyor belt fires in a large-scale tunnel
Liming Yuan, Alex C. Smith Process Safety and Environmental Protection Volume 95, Pages (May 2015) DOI: /j.psep Copyright © Terms and Conditions
2
Fig. 1 NIOSH Fire suppression facility.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
3
Fig. 2 Setup of conveyor belt and ignition gas burners.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
4
Fig. 3 Physical model of simulated tunnel and conveyor belt.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
5
Fig. 4 Comparison of heat release rates between test and simulation.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
6
Fig. 5 Comparison of surface temperatures between test and simulation.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
7
Fig. 6 Activation times for the first sprinkler at different locations. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
8
Fig. 7 Heat release rates for different sprinkler locations.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
9
Fig. 8 The maximum heat release rates before sprinkler activation for different. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
10
Fig. 9 Belt surface temperatures 5m from belt leading edge for different sprinkler locations. sprinkler locations. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
11
Fig. 10 Belt surface temperatures 7m from belt leading edge for different sprinkler locations. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
12
Fig. 11 Downstream smoke temperatures 15cm below roof for different sprinkler locations. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
13
Fig. 12 Radiation heat loss for different sprinkler locations.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
14
Fig. 13 Heat release rates for different water flow rates.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
15
Fig. 14 Belt surface temperatures for different water flow rates: 5m from belt leading edge. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
16
Fig. 15 Belt surface temperatures for different water flow rates: 7m from belt leading edge. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
17
Fig. 16 Downstream smoke temperatures 15cm below roof for different water flow rates. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
18
Fig. 17 Heat release rates for different activation temperatures.
Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
19
Fig. 18 Belt surface temperatures 5m from belt leading edge for different activation temperatures. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
20
Fig. 19 Belt surface temperatures 7m from belt leading edge for different activation temperatures. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
21
Fig. 20 Downstream smoke temperatures 15cm below roof for different activation temperatures. Process Safety and Environmental Protection , DOI: ( /j.psep ) Copyright © Terms and Conditions
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.