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MON20/20 Software for Gas Chromatographs User Manual
OCTOBER 2010 3-9000-745
B-7
where
B.4.2 Heating value calculations
• Dry Gross BTU of Total Gas
where
• Ideal Gas Relative Density
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.
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.
P Total number of components to be used in calculation of total BTU/
CF.
100 Removed the 100 factored into the calculation of the concentration
earlier in the analysis.
DRYBTU CF
CONCN()
n
BTU CF()
n
[]
n 1=
P
∑
100
--------------------------------------------------------------------------
=
TOTALRD
CONC
n
RD
n
()
n 1=
P
∑
100
----------------------------------------------
=