Passive cooling strategies

Passive cooling strategies include:

• Natural ventilation

• Structural thermal mass to absorb daytime heat loads

• Night cooling so that the structure can take up heat during the day

• Culvert ventilation to take up ground cooling However, passive cooling has limitations:

• It is not possible to maintain specific thermal conditions, so flexibility and some high temperatures must be acceptable.

• Only cooling loads up to about 40 W/m2 can normally be handled passively, then mechanical systems are required.

When it is necessary to provide tighter control of room temperatures and humidity - for example, manufacturing processes and museums - a mechanical cooling system will often be required. This can be achieved using a variety of benign low-energy mechanical techniques.

Was this article helpful?

0 0

Post a comment