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24-284 Run 1 Data.xlsm
PR - Proportional Rate Variation
ASTM E2515 equation (16)
Where:
θ
= Total sampling time, min
θ
= Length of recording interval, min
i
V
= Volume of gas sample measured by the dry gas meter during the "ith"
mi
time interval, dcf
V
= Volume of gas sample as measured by dry gas meter, dcf
m
V
= Average gas velocity in the dilution tunnel during the "ith" time interval, ft/sec
si
V
= Average gas velocity in the dilution tunnel, ft/sec
s
= Absolute average dry gas meter temperature during the "ith" time interval,
T
mi
= Absolute average dry gas meter temperature,
T
m
= Absolute average gas temperature in the dilution tunnel during the "ith" time interval,
T
si
= Absolute average gas temperature in the dilution tunnel,
T
s
Sample calculation (for the first 10 minute interval of Train A):
360
PR =
(
10
PR =
92
PFS-TECO
x
1.689
x
18.44
x 66.925
x
18.78
%
Page 12 of 18
o
R
o
R
x (
89.3
+ 460 ) x ( 91.8 + 460
x (
92.0
+ 460 ) x ( 70.2 + 460
o
R
o
R
)
)
x
100
)
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