VENTILATION & FIRE SAFETY

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Gervais Edwards
6 years ago
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1 VENTILATION & FIRE SAFETY

2 CONTENTS Company: ANALISIS-DSC Case Studies: Metro Station (Fire). Parking (Fire). Tunnel (Fire). Intermodal Facility (Ventilation) Contact

3 ANALISIS-DSC ANALISIS-DSC is The reference in the sectors Fluid dynamics and its interaction with structures in the Iberian Market. Our activity is based on: Design optimization Industrial processes optimization Energetic Eficiency Analysis Contingency Analysis (incidents/accidents) Equipment Damages Analysis Results reflected on: Costs reduction Quality improvement Increasing production Increasing profits

4 ANALISIS-DSC Aeronautical Naval Energy Civil Engineering Chemical Automotive Enviromental Turbomachinery Steel Defense Fire Safety

5 CASE STUDIES Metro station (Fire) Car park (Fire) Tunnel (Fire) Intermodal Facility (Ventilation system)

6 FIRE IN A METRO STATION Project developed for: TRAIN SMOKE STAIRS Metro Station: -Case study of fire in a wagon. - It is required staircases without smoke and under a limit temperature during certain time detailed. -Optimized design of the ventilation, forced impulsion/extraction, nozzles and grids.

7 Temperature Distribution FIRE IN A METRO STATION

8 FIRE IN A METRO STATION Pressure contour CO 2 concentration

9 FIRE IN A METRO STATION Velocity vectors showing its value and direction in a vertical plane.

10 FIRE IN A METRO STATION Opacity.

11 CAR PARK When there is a fire in a car park rarely affect to just one car. Due to the proximity between cars and depending on the fire, some of the closer ones start to burn up after a few minutes increasing 100% the thermal load. The design of the car park will be optimized adapting to the real fire situation.

12 CAR PARK Exit to the street Parked cars Cars, which could start to burn Car burning Ramps between plants Forced extraction grids Natural ventilation grids

13 CAR PARK Front view Side view

14 CAR PARK Fire modelled as a combustion reaction. Fuel + Oxygen CO 2 +H 2 0 Complete combustion because it is rich in O 2. Extraction smoke system activated to 6 renewals/hour. Natural ventilation: air intake by natural shot of the fire.

15 CAR PARK Temperatures after 2 minutes the fire started.

16 CAR PARK Velocities reached by the smoke after 2 minutes the fire started.

17 CAR PARK The smoke stays at the -2 level (underground level). Ocupying almost the whole floor.

18 CAR PARK After 7 minutes the temperatures increase gradually in the -2 level stratified. The -1 level is full of smoke. The smoke goes out through the parking entrance.

19 CAR PARK We observe the smoke with high CO 2 concentration distribution after 7 minutes thefirestarted.

20 FIRE IN THE NEXT CAR The temperature on the second car reaches the limit to start the fire because of the radiation. The second car burns up. Every car can start to burn up, the behavior of the fire determines which one burns.

21 FIRE IN TUNNEL Fire energy 30 MW (buses). Extraction system (longitudinal/cross sectional). Number of jets and capacity.

22 FIRE IN TUNNEL Smoke distribution with kg/m 3 concentration and temperatures distribution on tunnel.

23 FIRE IN TUNNEL The temperatures and temperature effects on the construction materials are obtained to verify their resistance.

24 FIRE IN TUNNEL Air Streamlines to verify the correct function of the jets.

25 FIRE IN TUNNEL Visibility, toxic elements concentration and evacuation study.

26 INTERMODAL FACILITY It is defined as a several levels installation, where different transport mean customers ( short distance train, long or short distance buses and metro) can move from one mean of transportation to another. Several levels with different acceses to the street or metro. The objective is to optimize the conditions at the passengers transit area.

27 TRANSPORT INTERCHANGER 2 levels Bus station with ramps. Extraction grids Impulsion grids (humid air)

28 TRANSPORT INTERCHANGER In this area the buses are assumed to be pseudotransient, so that it is possible to study the effect of the buses moving on the toxic distribution, temperature Stopped buses

29 TRANSPORT INTERCHANGER The objective is to maintain comfortable temperatures. It is taken into account the summer or winter season conditions.

30 TRANSPORT INTERCHANGER Toxic concentrations of CO and NOx.

31 TRANSPORT INTERCHANGER Relative humidity analysis for the customer comfort

32 CONCLUSIONS ANALISIS-DSC will reduce the production costs in Your company due to the optimization of the ventilation system developing technical reports or engineering projects. ANALISIS-DSC will help Your Sales Department as a marketing tool showing the results of Your proposal in a more attractive and impacting way. ANALISIS-DSC will help You to analyse and prevent accidents in Your installations developing contingency analysis reports or projects. ANALISIS-DSC will increase the benefits of Your company because of the improvement of the energetic efficiency.

33 CONTACT If You are interested in having a technical meeting or in knowing more about our services, do not hesitate to contact us. We will be looking forward to hearing from You at: Info@analisis-dsc.com ANALISIS-DSC C/ Nuestra Señora de la Luz, 21 local Izq Madrid (SPAIN)

Emergency Ventilation System Design - Preliminary Report Shishir Gupta

Emergency Ventilation System Design - Preliminary Report Shishir Gupta (shishir@mechartes.com), Abstract The existing stations and tunnels of Metro Railway, Kolkata are not equipped with effective emergency