Kidde IG-55 - Page 90

System Design
April 2020 3-8 06-237619-001
Table 3-5. IG-100 SI Units Total Flooding Quantity
Temperature
t
°C
Specific
Vapor
Volume
S
IG-100 mass required per unit volume of protected space, m/V (kg/m3)
Design Concentration (volume %)
m3/kg 34% 36% 38% 42% 46% 50% 54% 58%
-25 0.7265 0.572 0.614 0.658 0.750 0.848 0.954 1.069 1.194
-20 0.7411 0.561 0.602 0.645 0.735 0.831 0.935 1.048 1.171
-15 0.7558 0.550 0.591 0.633 0.721 0.815 0.917 1.027 1.148
-10 0.7704 0.539 0.579 0.621 0.707 0.800 0.900 1.008 1.126
-5 0.7851 0.529 0.568 0.609 0.694 0.785 0.883 0.989 1.105
0 0.7997 0.520 0.558 0.598 0.681 0.771 0.867 0.971 1.085
5 0.8144 0.510 0.548 0.587 0.669 0.757 0.851 0.954 1.065
10 0.8290 0.501 0.538 0.577 0.657 0.743 0.836 0.937 1.046
15 0.8437 0.493 0.529 0.567 0.646 0.730 0.822 0.920 1.028
20 0.8583 0.484 0.520 0.557 0.635 0.718 0.808 0.905 1.011
25 0.8730 0.476 0.511 0.548 0.624 0.706 0.794 0.890 0.994
30 0.8876 0.468 0.503 0.539 0.614 0.694 0.781 0.875 0.977
35 0.9023 0.461 0.495 0.530 0.604 0.683 0.768 0.861 0.961
40 0.9169 0.453 0.487 0.521 0.594 0.672 0.756 0.847 0.946
45 0.9316 0.446 0.479 0.513 0.585 0.661 0.744 0.834 0.931
50 0.9462 0.439 0.472 0.505 0.576 0.651 0.733 0.821 0.917
55 0.9609 0.432 0.464 0.498 0.567 0.641 0.721 0.808 0.903
60 0.9755 0.426 0.457 0.490 0.558 0.632 0.711 0.796 0.889
m =(V/s)·ln(100/(100-C)), agent mass, kg
W = m/V=(1/s)·ln(100/(100-C)), mass flooding factor, kg/m3
C = agent concentration, vol %
V = volume, m
3
s = a + b*t, specific volume of agent, m
3
/kg, where a and b are agent-specific constants
IG-100: a = 0.7997 kg/m
3
IG-100: b = 0.00293 kg/m
3
-°C
t = temperature, °C