Sherwood Meridian Series Manual page 61

OMNI-Test Laboratories, Inc.
– Average gas flow rate in dilution tunnel, dscf/hr
Q
sd
ASTM E2515 equation (3)
=
Q 3600
sd
Where:
3600 =
B
=
ws
A =
T
=
std
P
=
s
T
=
s
P
=
std
Sample calculation:
Q = 3600 x (1 - 0.02) x
sd
Q = 8469.6 dscf/hr
sd
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Control No. P-SFDK-0002, Effective date: 5/06/2016
 −  
1 ( B ) v A
ws s
Conversion from seconds to hours (ASTM method uses 60 to convert in minutes)
Water vapor in gas stream, proportion by volume; assume 2%
Cross sectional area of dilution tunnel, ft
Standard absolute temperature, 528 °R
Absolute average gas static pressure in diltuion tunnel, = P
Absolute average gas temperature in the dilution tunnel, °R; (°R = °F + 460)
Standard absolute pressure, 29.92 in Hg
12.83 x 0.196
T P
 
std s
T P
s std
2
528
x
93.6 + 460
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File - Run 1, Tab - Example Calculations
+ P , in Hg
bar g
-0.18
29.9 +
13.6
x
29.92