Question

_________ involves breaking of fuel into fine particles.

1. Fine atomization of fuel
2. Air supply at increased pressure
3. Mixing of fuel and air
4. Excess supply of air

Answer 1

Correct Answer - Option 1 : Fine atomization of fuel

Explanation:

During the combustion process of fuel when the liquid fuel breaks down into tiny droplets or fine particles then the process is called atomization.

• Atomization is the process of converting bulk liquid into fine droplets.
• The basic requirement in the various combustion application such as gas turbines, ramjets, liquid rocket engines, etc. is efficient atomization by the particular atomizer.

Coaxial atomization may be generally divided into five unique physical regimes - 

1. Turbulent liquid core
2. primary atomization (liquid/gas interface)
3. thick spray (secondary atomization, droplet break up) 
4. thin spray (turbulent droplet dispersion)
5. gas flow region (operational condition).