Equivalent time of fire exposure calculator

Method of CTE DB-SI Anejo B (tables B.1 to B.6) and UNE-EN 1991-1-2 Annex F.

Structural section material

Thermal properties of the enclosure

Fire compartment area (m²)

Fire compartment height (m)

Vertical openings surface area (m²)

Horizontal oppenings surface area (m²)

Active fire protection measures

Automatic fire detection

Automatic fire alarm with fire brigade notification

Automatic extinguishing system

Evacuation height

Combustion materials

Combustion coefficient

Occupancy

Fire load density (MJ/m²)

Permanent fire load (MJ)

Corrected fire load density (MJ/m²)

1204.67 MJ/m²

Equivalent time

140.05 minutes

Calculation breakdown

Characteristic fire load density q_f,k	650.00 MJ/m²
Combustion coefficient m	0.80
Compartment size factor δ_q1	1.544
Occupancy activation factor δ_q2	1.00
Active measures factor δ_n	1.000
Evacuation height factor δ_c	1.50
Conversion factor k_b	0.070 min·m²/MJ
Ventilation factor w_f	1.661
Structural section factor k_c	1.000