Thesis
Statement
Concepts
Precedents
summary
Site
Programme
Scratch
Pad
EcoResearch
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General
- energy efficient HVAC units
using eco-friendly
refrigerants (HFC-134a)
- limiting air cooling demands as
much as possible
means less energy consumption
and less
dependence upon cooling chemicals
that can
cause ozone depletion
- digital control systems to monitor
lighting and
energy consumption
- planning to off-set higher construction
costs by
long-term energy savings
and material durability
- unheated underground parking
- training sessions provided to
staff and building
management regarding the
materials, equipment,
and systems incorporated
into an ecodesign in
order to maximize their benefits
and efficiency
- providing as-built drawings for
all disciplines along
with operations and maintenance
manuals
- labelling components of the building
for future
reference
- use of natural ventilation to
offset internal heat gain
backed-up by a fan-coil system
to provide comfort
when needed
- heat recuperation/transfer methods
can lower
heating costs
- structural glazing with integrated
solar collecting
panels can form part of an
elevation and produce
all or part of a building's
electrical needs
Heating/Cooling Construction
- a combination of shading, double-wall,
and
operable windows reduces
external warm-weather
heat loads, winter cooling
loads, and internal heat
loads
- double-wall construction conserves
energy, offers
daylighting, user comfort,
and user control
- note that a double-wall is maintenance
intensive
- double-wall strategy does not
work well in areas of
high summer humidity such
as Montréal since it
limits the value of natural
ventilation
- the application of brise-soleil
(louvres) is a method
of shading in the summer
and allowing passive
solar gain in the winter
- roof overhang design can also
control solar
penetration
- exposed concrete soffits and internal
blockwork
walls help to increase a
building's thermal mass
so that night-time ventilation
can be used to cool
the structure
- thermal mass can be equally used
to keep a
building warm in the winter
- inner courtyards provide a favourable
microclimate
in both the winter (sun trap)
and summer (cooling
zone with plants and operable
windows)
- landscape planting of trees, vines,
and shrubs can
shade in the summer and protect
from winds in the
winter
Lighting
- natural daylighting
- clerestory windows, skylights,
light wells,
courtyards, ...
- a system of louvred blinds controlled
by
photoelectric cells
- a building's orientation can use
north light as a
stable light source and southern
light for solar
collection and/or passive
heating
- using manual light switches in
combination with
control systems to dim lights
when adequate
daylight is available or
turn lights off when a room
is vacant
Natural Ventilation
- natural ventilation with operable
windows
- wind catchers can add to natural
ventilation
- venting chimneys take advantage
of the stack-
effect
- central atria offer greater penetration
of natural
light and ventilation through
the stack-effect
- cross-ventilation opportunities
in rooms usually
means two windows on separate
walls or
equivalent openings
- direct venting of photocopy machines
helps to
maintain good indoor air
quality
Water Systems
- a graywater system can route rainwater
to sodded
roofs, plants, and service
water fountains
- use of composting toilets reduces
the volume of
waste by 90% with an end
product of a humus-like
soil rich in nitrogen and
other useful elements
- water conservation is gained from
low flow water
taps and shower heads
- irrigation can be provided from
collected rain
water
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