examples of different types of fuels
There are two different types of fuels can be used in combustion systems: liquids or solids. 1  Combustion of a liquid fuel in an oxidizing atmosphere actually happens in the gas phase.2  It is the vapor that burns, not the liquid.here are two different types of fuels can be used in combustion systems: liquids or solids. 1  Combustion of a liquid fuel in an oxidizing atmosphere actually happens in the gas phase.