Chapter 3 - Combustion & Combustion Performance Analysis

Question 1

Gases will only burn when there is a range of concentration of gas mixed with air. The concentration required is known as the flammability limits what is Methane typical mix?

Answer 1

Methane 5% to 15% gas in air

Question 2

When every atom of methane and oxygen combine during the combustion process it is referred to as?

Answer 2

Stoichiometric combustion.

Question 3

Incomplete combustion flame and tell tale signs

Answer 3

Yellow flame
A report of smell (spillage)
Soot deposits or yellow/brown marks around the burner
Soot deposits on the heat exchanger
Signs of heat damage around the draught
Excessive condensation in the room