Heating
and cooling
> insulation
> water system > ventilation
Insulation
 |
The
thermal mass of the rammed earth walls, concrete floors and ceiling
slabs act as heat sinks to stabilise temperatures in rooms, storing
the sun's heat and warming buildings in winter and cooling during
summer.
>
See diagrams of heating and
cooling systems
Wool insulation
in ceilings insulates the roof against penetration by the sun's
heat in summer and traps heat in buildings during winter.
Left: Rammed
earth walls and concrete floors and ceilings provide cooling and heating.
Photo: M. Fallander |
 |
Window
shading from all direct summer sun reduces room heating and the
impact of glare.
Left: Windows
are shaded from heat and glare.
Photo: M. Fallander |
>
back to top
Water
system
Water provides heating
and cooling for the buildings through pipes laid in concrete floors
and ceilings. Water is stored in large tanks in the roofs of each building.
In winter, the water
is heated in solar collectors on the building roof and spread through
the pipes to warm buildings. Gas heaters can also be used to heat the
water.
> See diagram
of the heating system
|
During
winter, water is warmed in
solar collectors during the day ... |
...
and circulated through building floors
by pipes.
Photos: W. Ward |
 |
In summer, the system
works in reverse, with piped water that is warmed during the day
being pumped to the solar collectors at night to allow heat to be dissipated
and the water to
be cooled. The cooled water is then circulated through the building to
cool it.
> See diagram
of the cooling system
During
summer,
water warmed
during the day is
cooled at night
through the solar
collectors on
building roofs.
Photo: W. Ward |
 |
>
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Ventilation
Ventilation improves
cooling in buildings at night, through the use of automatic louvre
vents, which flushes hot air from large spaces and lowers the internal
temperatures. Low
level vents are located beneath windows in each room, while high level
vents are
located in large central shafts or high roofs.
> See diagrams
of the heating and cooling systems
Cross ventilation
is attained through air moving through openable windows and vents in
the central shafts or roofs. Air is also circulated in each room by a
reversible ceiling fan,
which mixes warm air near the ceiling with lower cool air during winter.
The fan reverses air
flows during summer to move warm air out of rooms to cool them.
Right:
Ventilation is provided
through the large windows
and automatic shutter
system below each
window.
Photo: W. Ward |
 |
Thermal
chimneys (right)
provide cooling during
summer.
Photo:
W. Ward |
 |
Thermal chimneys in
office and teaching buildings and the Herbarium assist internal
cross ventilation between offices and corridors and help cool the building,
as hot air rises
and exits through louvres at the top of each stack.
>
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For
further information about developments on Thurgoona Campus,
contact CSU's Director, Building & Design, on telephone (61-2) 6933
2265.
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by the Media Unit, Division of Marketing & Communications
Web design and editor: Wes Ward
Last edited: 3 February 2003
© Charles Sturt
University
Please send comments to albury-media@csu.edu.au |