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MacBAT 5 – USER GUIDE. Version 1.0
Ranges of using following algorithms for simplified gas composition:
Parameter
Algorithm
SGERG-88 AGA8-G1 AGA8-G2 AGA NX-19mod K1=const
XCO2 [%] 0-30 0,15 N/A
XH2 [%] 0-10 N/A N/A
d - 0,55-0,9 0,554-0,87 0,554-0,75 0,07-2
Hs [MJ/m 3 ] 20-48 18,7-45,1 N/A N/A 0-66
XN2 [%] N/A 0-50 0,15 N/A
K1 - N/A 0-2
When using algorithms SGERG-88, AGA8-G1, AGA8-G2, AGA NX-19mod and K1=const., device requires programming
of parameters values such as calorific value Hs and relative density d to be adequate for currently set base conditions
(Tb and pb) for volume calculation and reference conditions for combustion (T1 and P1, here always P1=pb). Set of
base conditions in many European countries: pb=1,01325 bar; Tb=273,15 K; T1=298,15 K. When programming full
gas composition, no further recalculations are necessary.
Despite fact, that algorithms AGA8-G2 and AGA NX-19mod are not using calorific value Hs for calculation of
compressibility factor, it must be programmed, because it is necessary for correct computing of energy counter.