ENGINEERING REPORT
HVAC
Through creative engineering by
WorleyParsons water is being extracted
from the adjacent man-made lake and
utilized as pre-cooling to the air-conditioning
system resulting in an energy saving of more
than 30%.
Before the water is returned to the lake
it is cooled via a water channel running
through the landscaped garden towards the
lake. This design aspect contributed
significantly in achieving a five star Green
Building rating for the building.
Electrical
The office floors are fitted with motion and
light sensors to control the light switching
when the offices are not occupied. The light
sensors measure the natural daylight in the
offices and adjust the light levels of the
luminaires, which further contribute to the
energy efficiency of the building.
The most challenging aspect of the
electrical installation was the aim to
illuminate the concrete overhang of the roof
as to create the effect of a floating roof. With
various new LED light sources now available
on the market and after various mock ups
with relatively successful results, the team
was not 100% convinced that the LED
installation would meet the Green Building
councils criteria by not contributing to sky
glow and risking any Green Building points
The Edge
already achieved, the client decided against
illuminating the concrete roof overhang.
The focus shifted to ground level to
illuminate the landscape gardens with LED
technology which was successfully done
and still satisfied Green Building accreditation
with limited impact on light pollution.
Wet Services
The building’s stormwater drainage system
was designed to optimise the reuse potential
of the runoff generated. All stormwater
runoff that is generated by the building’s roof
and balconies is conveyed to holding tanks
at 1st floor level for storage and reuse. The
stored rainwater is integrated into the
building’s plumbing network. This can
provide water to all flushing toilets in the
building for up to 5 days when storage is at
full capacity, significantly reducing the need
for potable water.
Stormwater runoff is treated by means
of oil/water separators, litter traps and
filters to improve the water quality prior
to discharge. Furthermore the building
surroundings, where possible, are shaped
to convey stormwater runoff to planted
areas to improve the infiltration potential
of the site and assist with ground
water recharge.
Structural
The structural system consists of 9 levels
reinforced concrete frame with 1 semi-
basement. Basement cons G'V7F