Fike Clean Agent System - Page 42

SECTION 2 – DESIGN
Page 4 of 39 Fike Clean Agent System w/ FM-200™ UL / ULC Ex4623
Revision Date: January, 2010 Manual P/N: 06-215 (Rev G) FM 3010715
Temp.
Specific
Vapor
Volume
Weight Requirements of Hazard Volume, W/V (lb/ft
3
)
b
(English Units)
T s HFC-227ea Design Concentration (% by Volume)
e
(
o
F)
c
(ft
3
/lb)
d
6 6.25 6.5 6.8 7 8 9 10 11 12
10 1.9264 0.0331
0.0346 0.0361 0.0379
0.0391 0.0451 0.0513 0.0577 0.0642 0.0708
20 1.9736 0.0323
0.0338 0.0352 0.0370
0.0381 0.0441 0.0501 0.0563 0.0626 0.0691
30 2.0210 0.0316
0.0330 0.0344 0.0361
0.0372 0.0430 0.0489 0.0550 0.0612 0.0675
40 2.0678 0.0309
0.0322 0.0336 0.0353
0.0364 0.0421 0.0478 0.0537 0.0598 0.0659
50 2.1146 0.0302
0.0315 0.0329 0.0345
0.0356 0.0411 0.0468 0.0525 0.0584 0.0645
60 2.1612 0.0295
0.0308 0.0322 0.0338
0.0348 0.0402 0.0458 0.0514 0.0572 0.0631
70 2.2075 0.0289
0.0302 0.0315 0.0331
0.0341 0.0394 0.0448 0.0503 0.0560 0.0618
80 2.2538 0.0283
0.0296 0.0308 0.0324
0.0334 0.0386 0.0439 0.0493 0.0548 0.0605
90 2.2994 0.0278
0.0290 0.0302 0.0317
0.0327 0.0378 0.0430 0.0483 0.0538 0.0593
100 2.3452 0.0272
0.0284 0.0296 0.0311
0.0321 0.0371 0.0422 0.0474 0.0527 0.0581
110 2.3912 0.0267
0.0279 0.0291 0.0305
0.0315 0.0364 0.0414 0.0465 0.0517 0.0570
120 2.4366 0.0262
0.0274 0.0285 0.0299
0.0309 0.0357 0.0406 0.0456 0.0507 0.0560
130 2.4820 0.0257
0.0269 0.0280 0.0294
0.0303 0.0350 0.0398 0.0448 0.0498 0.0549
140 2.5272 0.0253
0.0264 0.0275 0.0289
0.0298 0.0344 0.0391 0.0440 0.0489 0.0540
150 2.5727 0.0248
0.0259 0.0270 0.0284
0.0293 0.0338 0.0384 0.0432 0.0480 0.0530
160 2.6171 0.0244
0.0255 0.0266 0.0279
0.0288 0.0332 0.0378 0.0425 0.0472 0.0521
170 2.6624 0.0240
0.0250 0.0261 0.0274
0.0283 0.0327 0.0371 0.0417 0.0464 0.0512
180 2.7071 0.0236
0.0246 0.0257 0.0270
0.0278 0.0321 0.0365 0.0410 0.0457 0.0504
190 2.7518 0.0232
0.0242 0.0253 0.0265
0.0274 0.0316 0.0359 0.0404 0.0449 0.0496
200 2.7954 0.0228
0.0238 0.0249 0.0261
0.0269 0.0311 0.0354 0.0397 0.0442 0.0488
a
The manufacturer’s listing specifies the temperature range for operation.
b
W/V [agent weight requirements (lb/ft
3
)] = pounds of agent required per ft
3
of protected volume needed to
produce the indicated concentration at the temperature specified.
c
t [temperature (
o
F)] = the design temperature in the hazard area.
d
s [specific volume (ft
3
/lb)] = specific volume of superheated HFC-227ea vapor can be approximated by
the formula: s = 1.8850 + 0.0046(t)
e
C [concentration (%)] = volumetric concentration of HFC-227ea in air at the temperature indicated.