Risk glossary


Wobbe Index

An index to indicate the interchangeability of fuel gases and is the best indicator of the similarity between natural gas and a specific propane-air mixture. Since this index relates heating characteristics of blended fuel gases, it can also be used to obtain constant heat flows from gases of varying compositions. The Wobbe Index, however, does not relate flame temperatures, heat transfer co-efficients or temperature gradients.

  • LinkedIn  
  • Save this article
  • Print this page  

You need to sign in to use this feature. If you don’t have a Risk.net account, please register for a trial.

Sign in
You are currently on corporate access.

To use this feature you will need an individual account. If you have one already please sign in.

Sign in.

Alternatively you can request an indvidual account here: