Adiabatic Flame Temperature

Adiabatic flame temperature of hydrogen, methane, propane and octane in Kelvin

A combustion process without heat loss or gain is adiabatic. The adiabatic flame temperature of some common fuel gases like hydrogen, methane, propane and octane with oxygen or air as oxidizers in a constant pressure adiabatic reaction are indicated in the table below:

FuelAdiabatic Flame Temperature (K)
Oxygen as OxidizerAir as Oxidizer
Acetylene - C2H2  4)
2905
Benzene - C6H6  3) 2539
n-Butane - C4H10  1) 2246
iso-Butane - C4H10  1) 2246
Butylene - C4H8  2) 2494
Ethane - C2H6  1) 2222
Ethylene - C2H4  2) 2616
Hydrogen - H2 3473 2483
Methane - CH4  1) 2223
Neopentane - C5H12  1) 2511
n-Hexane - C10H8  1) 2494
Naphthalene - C6H14  4) 2533
Neohexane - C6H14  1) 2508
n-Heptane - C7H16  1) 2469
n-Pentane -C5H12 1) 2505
iso-Pentane - C5H12 1) 2508
n-Pentene - C5H10  2) 2569
Propane - C3H8  1) 2526 1967
Propylene- C3H6  2) 2528
Toluene - C7H8  3) 2505
Triptane - C7H16  1) 2497
p-Xylene - C8H10  3) 2483
  • reactants enter the combustion process at 25oC (77oF) and 1 atm pressure
  • products leaves the process at 1 atm pressure
  • combustion is stoichiometric without any excess air

Excess air will reduce the adiabatic flame temperature and is often introduced to avoid flame temperatures exceeding limits sets by the materials in the combustion system.

Methane is the major part in Natural gas.

 1) Paraffins or alkanes

 2) Olefins or alkenes

3) Aromatics

4) Other hydrocarbons

Related Topics

  • Combustion - Boiler house topics - fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency

Related Documents

Key Words

  • en: adiabatic flame temperature hydrogen propane methane octane
  • es: temperatura adiab├ítica de llama de hidr├│geno de metano propano octano
  • de: adiabatische Flammentemperatur Wasserstoff Methan Propan Oktan

Search the Engineering ToolBox

- "the most efficient way to navigate the Engineering ToolBox!"

Engineering ToolBox - SketchUp Edition - Online 3D modeling!

3D Engineering ToolBox - draw and model technical applications

Engineering ToolBox - SketchUp Edition - add standard and customized parametric components - like flange beams, lumbers, piping and more - to your SketchUp model - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro. Add from the Sketchup Extension Warehouse!

Translate the Engineering ToolBox!
About the Engineering ToolBox!

close