Question

(ii) Calculate the Wobb number for methane.
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Answer 1

Explanation:

The Wobbe index is a measure of the interchangeability of gases when they are used as a fuel. It compares the energy output of different gases during combustion. The Wobbe index is essential for analyzing the impact of a fuel changeover and is also a common specification of appliances that use gas and of devices that transport gas. The Wobbe index may be calculated from the higher heating value (HHV) and the specific gravity of the gas.