• Harvesting waste heat from instrument
sterilisation equipment via heat exchangers to
supplement the domestic hot water system.
• 2 Hot water storage tanks used at different set
points to ensure minimum energy usage while
maintaining the required supply temperature
set point.
• All plumbing fittings are specified with low
flow aerators.
• Domestic water storage of 80,000L for emer-
gency use. Water is used for laundry and kitchen
during normal operation to ensure water does
not become stagnant.
• 5,000L Grey water storage capacity. One tank
used as ‘dirty tank’ to receive water from
ground water sump system and borehole.
Water passed through filtration system to
‘clean tank’ ensure water is of acceptable
quality for re-used as grey water to flush all toilet
in building.
• If grey water storage is full and sump needs to
be drained – water is pumped to irrigation water
storage tanks.
• Allowance made in design to receive a filtration
system that delivers water of drinking quality to
hospital from either borehole or sump.
Mediclinic
HVAC
• Air to air heat exchanges to temper fresh
air with exhaust air while ensuring no cross
contamination can take place.
• Occupancy sensors linked to extract fans for
ablution facilities with a low usage rate
• For VRF systems, an intelligent controller is speci-
fied to tie schedule indoor unit operating times.
• Heat recovery systems were specified to
provide heating and cooling simultaneously. This
allows energy to be transferred between areas
resulting in savings on running costs as energy is
harvested from one area and sent to the area it is
needed instead of rejecting it to the atmosphere
• Inverter driven heat pump technology is used for
all heating and cooling processes with regards
to domestic water and HVAC systems.
Conclusion
This exciting development pulls together expertise
from across various sectors and is a significant
investment in the delivery of quality healthcare to
the community of Stellenbosch. Optimising the
patient experience is at the heart of the design and
is evident on both micro and macro level, providing
an environment for world class delivery of care.
PHOTOGRAPHY
Juane Venter
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