Travis Industries Medium Flush Wood Hybrid Fyre Insert Manual page 179

OMNI-Test Laboratories, Inc.
– Average gas flow rate in dilution tunnel, dscf/hr
Q
sd
ASTM E2515 equation (3)
=
Q 3600
sd
Where:
3600 = Conversion from seconds to hours (ASTM method uses 60 to convert in minutes)
B
= Water vapor in gas stream, proportion by volume; assume 2%
ws
Cross sectional area of dilution tunnel, ft
A =
Standard absolute temperature, 528 °R
T
=
std
P Absolute average gas static pressure in dilution tunnel, = P
=
s
Absolute average gas temperature in the dilution tunnel, °R; (°R = °F + 460)
T
=
s(avg)
P
= Standard absolute pressure, 29.92 in Hg
std
Sample calculation:
Q = 3600 x (1 - 0.02) x
sd
Q = 9781.7 dscf/hr
sd
Control No. P-SSAR-0003
T
 −   
std
1 ( B ) v A
ws s
T
s ( avg
14.91 x 0.196 x
P

s
P
) std
2
+ P
bar g
-0.21
30 +
528 13.6
x
29.92
98.8 + 460
179 of 236
, in Hg
Run 2-Low_10-min