Kidde Fire Protection 400 Series, Design, Installation, Operation, And Maintenance Manual

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System Design
06-237518-001 3-9 July 2018
3-9 IG-541 TOTAL FLOODING CONCENTRATION FACTOR TABLES
Table 3-8. IG-541 Total Flooding Quantity
Temperature
t
°C
Specific
Vapour
Volume
S
IG-541 mass required per unit volume of protected space, m/V (kg/m3)
Design Concentration (volume %)
m3/kg 34% 38% 42% 46% 50% 54% 58% 62%
-25 0.5982 0.695 0.799 0.911 1.030 1.159 1.298 1.450 1.617
-20 0.6102 0.681 0.783 0.893 1.010 1.136 1.273 1.422 1.586
-15 0.6221 0.668 0.768 0.876 0.990 1.114 1.248 1.394 1.555
-10 0.6341 0.655 0.754 0.859 0.972 1.093 1.225 1.368 1.526
-5 0.6460 0.643 0.740 0.843 0.954 1.073 1.202 1.343 1.498
0 0.6580 0.631 0.727 0.828 0.936 1.053 1.180 1.318 1.471
5 0.6699 0.620 0.714 0.813 0.920 1.035 1.159 1.295 1.444
10 0.6819 0.609 0.701 0.799 0.904 1.017 1.139 1.272 1.419
15 0.6938 0.599 0.689 0.785 0.888 0.999 1.119 1.250 1.395
20 0.7058 0.589 0.677 0.772 0.873 0.982 1.100 1.229 1.371
25 0.7177 0.579 0.666 0.759 0.859 0.966 1.082 1.209 1.348
30 0.7297 0.569 0.655 0.747 0.844 0.950 1.064 1.189 1.326
35 0.7416 0.560 0.645 0.734 0.831 0.935 1.047 1.170 1.305
40 0.7536 0.551 0.634 0.723 0.818 0.920 1.030 1.151 1.284
45 0.7655 0.543 0.624 0.712 0.805 0.905 1.014 1.133 1.264
50 0.7775 0.534 0.615 0.701 0.793 0.892 0.999 1.116 1.244
55 0.7894 0.526 0.606 0.690 0.781 0.878 0.984 1.099 1.226
60 0.8014 0.518 0.597 0.680 0.769 0.865 0.969 1.082 1.207
m =(V/s)·ln(100/(100-C)), agent mass, kg
FF = m/V=(1/s)·ln(100/(100-C)), mass flooding factor, kg/m
3
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-541: a = 0.65799 kg/m
3
IG-541: b = 0.00239 kg/m
3
-°C
t = temperature, ° C