#Ventilation + Infiltration

ventilation
Just as cross ventilation can work in plan. The more common notion of ventilation
is probably in the vertical plane.
From childhood, the phenomena of hot air rising is known, but appears forgotten
by some bad building designers.
Exterior elements require careful design consideration. We always talk about
context, and how to design beyond the boundary of the external wall.
Topographic features such as hills directly effect local wind speeds. Good
ventilation strategies are about creating a microcilmate that effectively preconditions
the air before being given controlled access into and out of the
building.
Aside from evaporation, water features can also act as an ambient acoustic screen
and provide a calming effect.
Windows should be located on opposite sides of a space to control air in and out
of a building. Spaces greater than 8m in width begin to degrade air-flow
across a room.
Casement windows are better than top-hung awning windows as air flow can be
better controlled.
Air movement is most effective at floor level.
Consider a solar chimney to create an air flow effect through the building.
Ceiling fans promote air circulation.
Solar chimneys use the 'hot air rising' air convection flows to promote a
controllable passive air exhaust system. It needs to be baffled during cooler
months to prevent heat loss, and trapping hot air, where it is not required.
Ceiling fans are generally only consider for hot temperatures, but can also be
run in reverse to bring warm air down from the ceiling in winter to
homogenise room temperatures.
RMIT University © 12/9/18
Architecture & Urban Design