
DATA COMPUTATIONS C-13
MON2000
JULY 2010 Heating Value Calculations
where
where
where
WVC Water volume content (provided by a “live analog input”
Equation C-14 Wobbe Index Calculation
W.I. Wobbe index value
CORRGROSSBTU Corrected Dry BTU for total gas Sample
as calculated in Equation C-10
RD real Relative Density as calculated in
Equation C-9
Equation C-15 Weight Percent Calculation
WTpercentnweight percent of component “n”
CONCnconcentration in mole percent of
component “n”
Mwnmolecular weight of component “n”
sum of weights of all components in
sample
WI CORR GROSS()BTU
RD
------------------------------------------------------
=
All components in the
sample must be measured in
order to calculate weight
percent.
WTpercentn
CONCn
()MWn
()
CONCi
()
i1=
k
∑MWi
()
--------------------------------------------------100×=
i1=
k
∑