Portable Smoke Stopper for Firefighting


00

Smoke Spread in Buildings

Parameters for this Calcuations:

The movie shows the smoke spread in realtime.

Time [sec.]

Observation:

4-10

Smoke is created in the fire area, rises up and spreads at the ceiling of the  room

10-20

Smoke spreads into the stairway and through the open window in the fire area

20-30

Smoke spreads through the open window
(the calculation only shows the smoke up to a distance of 1 m to the builing wall)

30-50

Smoke spreads into the stairway.
Because the stairway is closed at the top there will be no clear air flow through the stairway. Smoke will accumulate close to the entrance of the fire area. By bouyancy the smoke will also spread up the stairway.

50-90

Heavy smoke can be recognised in front of the fire area.

120

The stairway will fill up totally with smoke.

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