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Function Blocks
AGA8DL Function Block
Revision 11
HC900 Hybrid Control Designer Function Block Reference Guide
13
2/07
AGA8DL Function Block
Description
The
AGA8DL
label stands for
Gas Compressibility Detail AGA8 Calculation
.
METER BLOCK
CONNECT
This block is part of the
Calculations
category.
Function
The Detail method (AGA8DL) uses the gas analysis of up to 21 components. From the gas analysis, the
super-compressibility factor, gas density at flowing and standard conditions, and gas relative density at
standard conditions are calculated for input into the AGA calculation for the meter type chosen.
Used when accurate gas analysis is available either via an on-line gas analyzer or from laboratory
measurements. The Detail method can handle up to 21 gas components typically found in natural gas. If
this information is available, the Detail method is preferable, as accurate results are obtainable over a wider
range of conditions than the Gross method.