KROHNE Summit 8800 Vol 2 - Manual (Page 108)

108 www.krohne.com 08/2013 - MA SUMMIT 8800 Vol2 R02 en
SUMMIT 8800 STREAM CONFIGURATION 06
Figure 105 Gas Line density Z-equation method
The following formula’s for compressibility can be selected:
Keypad A fixed user defined value to be entered
AGA8 Using the AGA8 calculation based on the gas data available
SGERG Using the SGERG calculation based on relative density and combinations of gas data:
rd-Hs-CO2 / rd-Hs-N2 / rd-Hs-CO2-H2 / rd-Hs-N2-H2 / rs-N2-CO2
Also the combustion temperature must be given.
NX19 Using the NX19 calculation based on the gas data available. 3 Versions are available:
Standard / Gost / G9
Z Table A table will appear to enter the compressibility against pressure and temperature.
6 .8 .8 .1 Z-table
If a Z-table is selected for compressibility (under line density/ Z equation tab), an additional icon
“Z-table” will appear in the left hand list:
Liquid Gas Steam
This page is used to define the compressibility as a table of up to 50 pressures and 50 tempera-
tures: