Question

The rate of burning does not depend on the relative movement of the burning droplets to the surrounding air charge.

(a) True

(b) False

This question was addressed to me during an interview.

I'd like to ask this question from Combustion in C.I. Engine topic in division Combustion and Combustion Chambers of IC Engine

Answer 1

The correct answer is:

(b) False

Explanation: The rate of burning in a Compression Ignition (C.I.) engine does depend on the relative movement of the burning droplets to the surrounding air charge. The combustion process in C.I. engines is significantly influenced by the atomization of fuel, which is achieved through the injection system. The fuel droplets need to mix efficiently with the air for proper combustion. The movement of the droplets relative to the air affects their surface area and the rate at which they vaporize and burn. Proper mixing and relative motion between the droplets and air are crucial for achieving optimal combustion, fuel efficiency, and minimal emissions.