• Classification of fuel
  • Based on physical state
    • Liquid fuel
      • Crude Petroleum
      • Natural gasolne
    • Solid fuel
      • Wood
      • Coal
    • Gaseous fuel
      • Natural Gas
  • Based on occurrence
    • Primary or natural fuel
      • Wood
      • Coal
    • Secondry or prepared fuel
      • Charcoal
      • Petrol and Coke

Classify fuels

Types of liquid fuels and its applications

Types of Solid fuels