Asked by Jeannyn Salinas on May 27, 2024
Verified
Why do gas mixtures explode below the fuel-to-air lower explosion level (LEL) ?
A) Because of the pressures involved at that level.
B) Because all the fuel is in a vapor phase.
C) They don't explode below the LEL.
D) Both A and B are correct.
Lower Explosion Level (LEL)
The lowest concentration of a gas or vapor in the air that will ignite and produce a flame.
Vapor Phase
The state of a substance when it is in gas form, especially when it coexists with its liquid or solid phase.
- Understand the principles of fuel-air explosives, focusing on the mechanisms of detonation and the explosion thresholds.
Verified Answer
CC
Crischa CaminosJun 03, 2024
Final Answer :
C
Explanation :
Below the Lower Explosion Level (LEL), there is not enough fuel in the air for the mixture to ignite or explode. The LEL represents the minimum concentration of gas or vapor that is capable of producing a fire in the presence of an ignition source. Below this level, the mixture is too lean to support combustion.
Learning Objectives
- Understand the principles of fuel-air explosives, focusing on the mechanisms of detonation and the explosion thresholds.