User's Manual

DATA COMPUTATIONS C-9
MON2000
JULY 2010 Post Analysis Computations
C.4 POST ANALYSIS COMPUTATIONS
C.4.1 Liquid Equivalent Computations
The equivalent liquid volume, in gallons per
1000 standard cubic feet (GPM) is given by:
where
C.4.2 Heating Value Calculations
(a) Dry Gross BTU of Total Gas
where
Equation C-6 Equivalent Liquid Volume (GPM)
GPM
n
CONCN
n
LCF
n
×
BASEPRS
14.73
--------------------------
×
BASETEMP 459.67+
60 459.67+
------------------------------------------------------ -
×=
GPM
n
gallons/1000 standard cubic feet of component “n”
CONCN
n
normalized (if selected) concentration of
component “n”
LCF
n
liquid equivalent conversion factor for component
“n” at 14.73 PSIA and 60 degrees F
BASE PRS base (contact) Pressure specified; defaults to
14.73
Equation C-7 Dry Gross BTU Value of Total Gas
DRYBTU/
CF
uncorrected dry BTU content per cubic foot of
total gas sample
CONCN
n
normalized (if selected) concentration of
component “n”, calculated from peak analysis
BTU/CF
n
energy content per cubic foot of component “n”,
stored in permanent memory
DRYBTU CF
CONCN()
n
BTU CF()
n
[]
n 1=
P
∑
100
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