Page 41 - UL_Report On_Part 1

31 IITGN-UL/Façade 32 IITGN-UL/Façade

(b) Fire load setup, Ventilation conditions and Ignition Fire Load Floor area of the compartment was Sr. Average unit Total Weight Calorific Value Fire Load (MJ)

23.04m2 (Compartment size 6m x No Item Material Quantity Weight (kg) (kg) (MJ/kg)
3.84m). Fire load energy density
Fire scenarios were developed using real office furniture (sofa sets, reception desks, curtains, carpets, etc.) in accordance with the National Building Code of India. (FLED) at ground level for this 1 Crib Pine Wood 1 90 .17 90.17 19.1 1722.25
Cotton curtains covering the entire façade face were placed at all three floor levels. compartment was 201 MJ/m2 (11.5
Fire load was also provided in form of standard wooden cribs. 3-A fire rating was used for determining the size of wood crib. 144 pine wood members of trade kg wood equivalent) 2 Office table Wood 1 36 36 17.6 633.6

size and length of 38mm x 38mm x 735 mm arranged in 18 layers of 8 members placed at right angles to one another are used for the required wood-crib On first floor level, fire load (wood and steel)
construction. The individual wood members in each layer are to be evenly spaced in forming a square determined by the specified length of the wood members. comprised of an uncovered wooden 3 Chair Wood 1 5.5 5.5 17.6 96.8
Design FLED as per NBC is 25 kg wood equivalent. crib, a wooden cupboard and a Upholstery 1.5 0 35.2 0
Ground floor fire load comprised of an office table with three chairs, seating bench, three cotton mattress and a wooden crib covered with cotton cloth and a study table with a chair. Standard 4 Cupboard Wood 1 25 25 17.6 440
tray containing petrol placed beneath the crib. Table 1 shows fire load calculations for ground floor level. Combined inventory and weighing method has been wooden crib for 3-A fire rating 5 Mattress Cotton 2 22 44 15.8 695.2
used to determine fire load within the compartment. All four tests have different fire loads at various levels ranging from maximum 35 kg wood equivalent to similar to ground floor was used at 6 Curtains (Pair) Cotton 1 5 5 15.8 79
minimum 1.6 kg wood equivalent. first floor level. Table 2 shows
calculation of fire load for Total 3666.85
Sr. Average unit Total Weight Calorific Value Fire Load compartment 1 at first floor level.
No Item Material Quantity Weight (kg) (kg) (MJ/kg) (MJ) Table 2: Fire load calculation at first floor level for Test 1

1 Dining Chair Wood 7 21 17.6 369.6
Upholstery
(Polyurethane) 3 3 9 35.2 316.8 Sr. Average unit Total Weight Calorific Value Fire Load (MJ) FLED at first floor level was 160

No Item Material Quantity Weight(kg) (kg) (MJ/kg) MJ/m2 (9.5 kg wood equivalent)
2 Table Wood 1 25 25 17.6 440 Second floor level was furnished
1 Bookcase Wood 1 40 40 17.6 704 with a wooden cupboard as fire
Mattress
3 Cotton 3 22 66 15.8 1042.8 load. No wooden crib was placed at
(single bed) 2 Curtains (Pair) Cotton 1 5 5 15.8 79 second floor level. Table 3 provides
Curtains, Bed sheet, details of fire load at the second
4 Cotton 1 8 8 15.8 126.4
Shawl Total 783 floor level of compartment 1.
5 Crib Pine Wood 1 90.17 90.17 90.1 1722.25
Table 3: Fire load calculation at second floor level for Test 1
6 Bench Wood 1 33 33 17.6 580.8
Tray filled with FLED at second floor level was 27 MJ/m2 (1.6 kg wood equivalent). It is to be noted that the design FLED prescribed by the
7 Gasoline 1 0.708 0.708 45.8 32.4264
Gasoline NBC for office occupancies is 25 kg wood equivalent.
total 4631.07

Table 1: Fire load calculation at ground floor level for Test 1