You are currently browsing the tag archive for the ‘Passive Ventilation’ tag.

As discussed in The Minaret, it is the only structure synonymous with a mosque. The inclusion of this feature is strengthened because of its integral use in the Environmental Design strategy. It is a simple brick tubular tower with an intricate water-jet cut stainless steel perforated grill set to a six pointed star pattern in plan as the crowning piece. This patterned sheet acts as the outlet for the prayer space’s passive ventilation strategy.

Advertisements

With one of the aims of the the proposed mosque to combine the Minaret with its ventilation system based on precedents like the Contact Theatre, employing a strategy that is appropriate is crucial. Above is a sketch of simple stack effect ventilation taken from Environmental Design by Randall Thomas. I have been fortunate enough to have discussed such methods with Randall. They are both interesting and can improve the energy efficiency of a building dramatically if considered from an early stage of design. It is essential that all architects understand at least the basic principles upon which methods such as this are based.

The Contact Theatre, Manchester by Short & Associates is a very good example of passive ventilation. The principle behind the mechanically assisted natural ventilation system of the Contact Theatre is quite simple. External cool air is brought in through a series of ground level vents which are fed to under the seating. As the air heats up is rises but the extraction is through constructed H Pots above the theatre. These H Pots create a negative pressure from cross winds to suck the air out, however this is sometimes assisted by mechanically by fans in the base of the stack. Above is a sketch showing the passive of air through the main theatre space.