Gas Quality AFB
Ø Normalization of gas vector, if applicable
Ø If full gas composition is available, calculation of following values
related to base conditions GQ source:
• Density and heating values
according to ISO 6976
• Density and Zb
according to AGA8 (ISO 12213-2)
Ø Zb calculation acc. to parameterized method, calculation of C
conversion factor, K factor
Ø Calculation of density and heating values related to end base
conditions
Ø Calculation of density at measurement conditions
Ø Zm calculation acc. to parameterized method
Ø Message generation (derived from monitoring of input
measurements)
Export values
C, Zm, Zb, K, p, t,
ρm, ρb, HM, HV,….
for further processing
Gas quality data
input
(optional:
substitute value strategy,
limit monitoring)
p, t input
(optional:
substitute value strategy,
limit monitoring)
Indication of end
base conditions