FPI CI2700 Manual page 138

Catalytic wood-fired fireplace insert
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Run 2 Data.xlsm
Q
– Average gas flow rate in dilution tunnel, dscf/hr
sd
ASTM E2515 equation (3)
=
3600
Q
sd
Where:
3600
=
B
=
ws
A
=
T
=
std
P
=
s
T
=
s(avg)
P
=
std
Sample calculation:
Q
=
3600 x (1 - 0.02) x
sd
Q
=
sd
PFS-TECO
(
1
)
B
v
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 dilution tunnel, = P
Absolute average gas temperature in the dilution tunnel, °R; (°R = °F + 460)
Standard absolute pressure, 29.92 in Hg
16.18
x 0.1963
10995.2
dscf/hr
T
P
std
s
A
T
P
(
)
s
avg
std
2
528
x
78.6
+ 460
Page 10 of 17
+ P
, in Hg
bar
g
-0.22
29.95 +
13.6
x
29.92

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