Honeywell enCore Series Manual page 154

7
The superior/inferior calorific value changes if the gas contains water va-
por.Depending on the quantity, a distinction is made between dry and
partially saturated or saturated (humid).
Values for the partly saturated or humid gas are lower than for dry gas
since water vapor and combustion gas components divide the volume.
Specified water vapor saturation values in the superior/inferior calorific
value results for three assumed states (dry/humid/partly saturated) are
used in the calculation method.
The actual water vapor content must be calculated, for example, from hu-
midity or dew point measurements.
The following values can be found in the sub-display Details of the main display:
Displayed value
Meaning (of the value abbreviation)/Physical quantity
(abbreviation)
Hs Superior calorific value; molar
HsV Superior calorific value; based on volume
HsM Superior calorific value; based on mass
Hi Inferior calorific value; molar
HiV Inferior calorific value; based on volume
HiM Inferior calorific value; based on mass
Zb Compressibility factor at basis conditions
Ws Superior Wobbe index
Wi Inferior Wobbe index
d Relative density
Rh Density at base conditions
M Molar mass (of the mixture)
MN Methane number
To see all the calculations, you must once again use the superimposition
keys as the display is too long to be shown in full.
You can only change to the details of another standard using the main
display.
GasLab Q2
GasLab Q2 operation panel and operation
User Manual (N ) 154 of 315