The Wobbe Index is a key parameter for comparing gaseous fuels in terms of their energy performance in a burner.
What it combines
It relates the calorific value to the density of the gas and helps estimate whether two gases will provide similar thermal power from the same orifice.
Composition changes
Changes in the composition of natural gas can affect the required air-fuel ratio.
Effect on combustion
Minor changes in O₂, CO₂, power output, and flame stability may be observed.
Practical significance
In sensitive industrial applications, variations in gas quality must be taken into account during energy and combustion monitoring.