Module M02 · Track 1 Foundations
Properties of gas & combustion
What natural gas is, how it burns, and what happens when combustion goes wrong.
Lessons for this module are being written. The outcomes and topics below show what it will cover.
Learning outcomes
By the end of this module, learners can:
- M02.1Describe the properties of natural gas relevant to safe working (relative density, calorific value, Wobbe index, flammability limits).
- M02.2Explain complete and incomplete combustion and identify the products of each.
- M02.3Relate flame appearance to aeration, and recognise flame lift, light-back and yellow tipping.
- M02.4Explain how carbon monoxide affects the body and why it is so dangerous.
Topics
- 2.1
Natural gas: composition and properties
Methane, relative density, calorific value, Wobbe index and flammability limits.
In preparation - 2.2
The combustion process and air requirements
The fire triangle, the air needed to burn gas and the products of complete combustion.
In preparation - 2.3
Incomplete combustion and carbon monoxide
What causes incomplete combustion and how carbon monoxide is produced.
In preparation1 artefact - 2.4
Flame characteristics and burner types
Pre-aerated and post-aerated burners, flame pictures and common flame faults.
In preparation1 artefact - 2.5
Effects of carbon monoxide on health
How CO affects the body, the symptoms of exposure and why it goes unnoticed.
In preparation1 artefact