Module 5: Premixed Flame
  Lecture 26: Flammability Limits
 


Effect of Pressure on Limit Mixture

 
(Figure 26.2)
   

Fuel

Oxidizer

Stoichiometry (% Fuel)

LFL (%)

UFL (%)

Methane

Air

9.5

5

15

Ethane

Air

5.6

2.8

12.4

Propane

Air

5.6

2.1

9.1

CO

Air

29.5

12

74.2

Hydrogen

Air

29.2

4

74.2