Hfc-227Ea Total Flooding Concentration Factors (W/V), Metric - Kidde Fire Systems ECS Manual

Design and Installation
Table 4-5. HFC-227ea Total Flooding Concentration Factors (W/V), Metric
Specific
a
Temp
Vapor
t
Volume
C d
(°C) 3
(m /kg)
s
0 0.1268
5 0.1294
10 0.1320
15 0.1347
20 0.1373
25 0.1399
30 0.1425
35 0.1450
40 0.1476
45 0.1502
50 0.1527
55 0.1553
60 0.1578
65 0.1604
70 0.1629
75 0.1654
80 0.1679
85 0.1704
90 0.1730
a The minimum design temperature in the flooded space.
b W V  [agent weight requirements (kg/m
to produce indicated concentration at the temperature specified.
 V s      
W = c 100 c
c [temperature (°C)] = The design temperature in the hazard area.
t
d [specific volume (m 3 /kg)] = Specific volume of superheated HFC-227ea vapor can be approximated by the formula:
s
s = 0.1269 + 0.0005t
e [concentration (%)] = Volumetric concentration of HFC-227ea in air at the temperature indicated.
C
October 2014
Weight Requirements of Hazard Volume,
Design Concentrations (% by Volume)
6.25 6.70 7
0.5258 0.5659 0.5936
0.5152 0.5550 0.5816
0.5051 0.5444 0.5700
0.4949 0.5343 0.5589
0.4856 0.5246 0.5483
0.4765 0.5151 0.5382
0.4678 0.5061 0.5284
0.4598 0.4973 0.5190
0.4517 0.4888 0.5099
0.4439 0.4807 0.5012
0.4366 0.4728 0.4929
0.4293 0.4651 0.4847
0.4225 0.4577 0.4770
0.4156 0.4505 0.4694
0.4092 0.4436 0.4621
0.4031 0.4368 0.4550
0.3971 0.4303 0.4482
0.3912 0.4239 0.4416
0.3854 0.4178 0.4351
3 )] = Kilograms of agent required per cubic meter of protected volume
 
–
where = temperature (°C)
t
8 9 10
0.6858 0.7800 0.8763
0.6719 0.7642 0.8586
0.6585 0.7490 0.8414
0.6457 0.7344 0.8251
0.6335 0.7205 0.8094
0.6217 0.7071 0.7944
0.6104 0.6943 0.7800
0.5996 0.6819 0.7661
0.5891 0.6701 0.7528
0.5790 0.6586 0.7399
0.5694 0.6476 0.7276
0.5600 0.6369 0.7156
0.5510 0.6267 0.7041
0.5412 0.6167 0.6929
0.5338 0.6072 0.6821
0.5257 0.5979 0.6717
0.5178 0.5890 0.6617
0.5102 0.5803 0.6519
0.5027 0.5717 0.6423
4-6
3 b
W V  (kg/m )
e
11 12 13
0.9748 1.0755 1.1785
0.9550 1.0537 1.1546
0.9360 1.0327 1.1316
0.9178 1.0126 1.1096
0.9004 0.9934 1.0886
0.8837 0.9750 1.0684
0.8676 0.9573 1.0490
0.8522 0.9402 1.0303
0.8374 0.9230 1.0124
0.8230 0.9000 0.9950
0.8093 0.8929 0.9784
0.7960 0.8782 0.9623
0.7821 0.8410 0.9469
0.7707 0.8504 0.9318
0.7588 0.8371 0.9173
0.7471 0.8243 0.9033
0.7360 0.8120 0.8898
0.7251 0.800 0.8767
0.7145 0.7883 0.8638
14 15
1.2839 1.3918
1.2579 1.3636
1.2328 1.3364
1.2089 1.3105
1.1859 1.2856
1.1640 1.2618
1.1428 1.2388
1.1224 1.2168
1.1029 1.1956
1.0840 1.1751
1.0660 1.1555
1.0484 1.1365
1.0316 1.1183
1.0152 1.1005
0.9994 1.0834
0.9841 1.0668
0.9694 1.0509
0.9551 1.0354
0.9411 1.0202
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