Pelpro PP130-B - Page 63

OMNI-Test Laboratories, Inc.
Q
sd
– Average gas flow rate in dilution tunnel, dscf/hr
ASTM E2515 equation (3)
Where:
3600 = Conversion from seconds to hours (ASTM method uses 60 to convert in minutes)
B
ws
=
Water vapor in gas stream, proportion by volume; assume 2%
A =
Cross sectional area of dilution tunnel, ft
2
T
std
=
Standard absolute temperature, 528 °R
P
s
=
Absolute average gas static pressure in diltuion tunnel, = P
bar
+ P
g
, in Hg
T
s
=
Absolute average gas temperature in the dilution tunnel, °R; (°R = °F + 460)
P
std
= Standard absolute pressure, 29.92 in Hg
Sample calculation: -0.20
13.6
81.7 + 460
Q
sd
=
##### dscf/hr
29.92
14.73
x
0.196
30.5
+
Q
sd
=
3600 x (1 - 0.02) x
x
528
x
std
s
s
std
swssd
P
P
T
T
AvBQ  )1(3600
Control No. P-SFDK-0002, Effective date: 5/06/2016 File - 135PS040E PP70 Run 1, Tab - Example Calculations
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