FEATURE: VENTILATION

VENTILATION

F E A T U R E

LEWIS BLAKEMORE

Electrical Lecturer Wigan and Leigh College A ventilation system controls airflow within confined spaces. Its main function is to introduce a constant supply of fresh air, usually from the outside, while channeling stale air back out. It controls the carbon dioxide and moisture content in the air, removes excess heat from rooms and disposes of odours, dust and smoke.

VENTILATION

Here is an explanation as to why we need ventilation, from the Aereco channel.

SYSTEMS

And here are the different types of systems explained.

QUIZ

1. Describe the stack effect.

Answer:

2. State three reasons why a building requires ventilation.

Answer:

TOP TIP

■ Natural ventilation is brought about by the wind effect and the stack effect.

■ Mechanical ventilation is brought about by extraction systems, supply systems and balanced ventilation systems.

Go to sparks-magazine.co.uk to download exercise answers for free.