Yamatake HGC303, Руководство пользователя

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Model HGC303 - Heat Value Gas Chromatograph A-1
Appendix
GPA calculation
Description of normalization method
The model HGC303 has two kinds of normalization methods. One is the Standard
normalization method, and the other is the Methane normalization method.
Normalization method is used to derive each component's normalized concentration
from un-normalized components' concentration. And each component's normalized
concentration is used to calculate the heating value and other physical properties
which are important values for you. Thus, we describe how the HGC calculates each
component's normalized concentration on each normalization method first. Next, we
explain how to calculate the heating value and other physical properties.
1. Standard normalization method
The model HGC303 calculates the normalized concentration by the following
formula.
Where: x
i
= Normalized concentration for component i
yi = Un-normalized concentration for component i
2. Methane (CH4, PV9) normalization method
The model HGC303 calculates the normalized concentration for methane by the
following formula.
Where: x
9
= Normalized concentration for methane (CH4, PV9)
x
i
= Normalized concentration for component i except methane
y
i
= Un-normalized concentration for component i except methane
Table A-1 shows the result of each component's normalized concentration and the
difference of heating value between normalization methods.
x
i
yi
yi
i 1 =
n
∑
-------------- 100 ×
=
x
9
100 y
i
i 1 =
8
∑
 
 
 
y
10
y
11
+ +
 
 
 
– =