TABLE OF CONTENT 1. Introduction to Fuels 2. Properties of Liquid Fuels 3. Properties of Coal 4. Significance of Various Parameters in Proximate Analysis 5. Ultimate Analysis 6. Storage, Handling and Preparation of Coal 7. Blending of Coal 8. Properties of Gaseous Fuels 9. Principle of Combustion 10. 3 T’s of Combustion 11. Calculation for Requirement of Theoretical Amount of Air 12.Calculation of constituents of flue gas with excess air 13. Optimizing Excess Air and Combustion