Galvanic Applied Sciences AccuChrome MA2963, Operation Manual

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Revision 4 122 12/15/2018
Compressibility Factor (Z)
The Compressibility Factor is calculated by equation 13-2.
Z = 1 – (P
b
× Σ Pn=1 [Conc
n
× b
n
]) 13-2
Where: Z = Compressibility factor
P
b
= Base pressure (psia)
Conc
n
= Normalized concentration of component n
b
n
= ‘Summation factors’, as defined in GPA Standard 2172-96
Heating Values
The
Dry BTU
,
Connected Dry BTU
,
Saturated BTU
and
Corrected Saturated BTU
are
calculated by equations 13-3 through 13-6.
Dry BTU
The energy content of the gas in BTU / cubic foot is calculated by equation 13-2.
Dry BTU / ft 3 = Σ Pn=1 [Conc
n *
BTU / ft 3n ] / 100 13-3
Where: Dry BTU / ft 3 = Dry BTU content per cubic foot of sample gas
Conc
n
= Normalized concentration of component
BTU/ft 3n = BTU value of component n
P = Number of components in the analysis
Corrected Dry BTU
Corrected Dry BTU / ft
3
= (Dry BTU / ft
3
) / Z 13-4
Saturated BTU
Sat BTU / ft 3 = Dry BTU / ft 3 x 0.9826 13-5
Where:
Sat BTU /ft
3 = Saturated BTU content per cubic foot of sample gas
Dry BTU /ft 3 = Dry BTU content per cubic foot of sample gas
Corrected Saturated BTU
Corrected Sat BTU / ft 3 = (Saturated BTU / ft 3 ) / Z 13-6