Module 1: Introduction to Combustion
  Lecture 3: Fuels
 


Properties of Liquid Fuels

Specific Gravity
 : Ratio of mass density of fuel to mass density of water at the same temperature
 
 

Reference temperature for fuel and water: 288.8 K
American Petroleum Institute (API) Scale:

   
 

Relation between APISG and HHV:

  For Gasoline :
For Kerosene :
Auto Ignition Temperature
 : The lowest temperature required to make the combustion self sustained without any external aid