Question

What is the use of baffles in the gravitational separators?

(a) To separate types of dust

(b) To settle the dust by letting them to strike

(c) To control the flow of dust particles

(d) To blow the dust

This question was posed to me by my college professor while I was bunking the class.

My doubt is from Mechanical Dust Collectors topic in portion Steam Power Plant of Energy Engineering

Answer 1

The correct choice is (b) To settle the dust by letting them to strike

The best explanation: Baffles are placed in the direction of flow of flue gases. The dust particle strike down and settle. Heavier dust particles settle at the bottom by striking on to the baffles and lighter dust particles are exhaust into atmosphere.