Part 1: Introduction
Background Information
The Tyree building is a multi-functional building used in educational purpose, specifically,Common (26% ), Teaching (11% ), Labs (19%) , Offices (17%). It consists a relocation of 250 UNSW personnel with the transfer of 17 teaching and research laboratories. The total construction cost is about $123.5 million and it has been supported by $75m in funding under the federal government’s Education Investment Fund. The entire construction has been completed 11 January 2012 with a 6 Green Star design certification (fourth 6 Star education facility in Australia and a first for UNSW).
Part 2: Building Conditions
Existing Condition
l Five levels totalling approximately 15,000 m2.
l Create a new home for the Australian Energy Research Institute incorporating teaching.
l Laboratories to support the ongoing research of UNSW researchers in world record-breaking solar photovoltaic technologies, sustainable clean fuels, smart grids, energy storage, energy economics and policy analysis.
l Educational hub for undergraduate and postgraduate students, providing an optimal learning environment for the expert engineers and analysts who will shape our energy future.
l Accommodate and showcase cutting edge research in clean energy including photo-voltaics, carbon capture and storage.
l The roof of the building incorporates photovoltaic cells for the testing of research and development work as well as contributing to the energy input requirements of the facility.
l Central atrium space uses access stairs and pedestrian bridges to connect the floor levels. This increases the visual and physical interconnection and enhances the collaborative nature of the design.
Part 3: Sustainable Technology
Tri-generation system
l Generates electricity and useful heat from the combustion of natural gas.
l Waste heat used to produce hot water for heating, or chilled water for cooling via absorption chiller.
l Electricity is then exported to the university‟s HV network.
l Chilled water is exported to the campus Central Energy Plant which provides 5 buildings with chilled water.
Photovoltaic System
l 1,100 m2 roof-mounted photovoltaic array with arrays at different tilt angles.
l Total capacity of 150 kWp.
l Electricity produced exported to the university‟s high voltage network.
Thermal Labyrinths
l One northern and one southern labyrinth.
l Underground passive heating and cooling systems are in fact long concrete tunnels.
l Dimensions are approximately 90 m long, 1.2 m wide and 3 m height.
Bore water cooling/heating
l Large underground storage tanks used to supply water to pressure pumps with variable speed drives.
l Non-potable water used in toilets, irrigation, cooling towers.
l Rain water collected from roof and stored on site in a rainwater tank; treated before being used.
l Fed back into the aquifer using a percolation chamber when the system collects too much compared to the building‟s needs.
Treated Bore Water
l Treated bore water used to supply the building including water to all toilet cisterns, plant rooms and the labs.
l Treated water is also supplied to the Trigen cooler.
l The cooler drains the water out each evening and goes into the storm water and back to the underground tanks and is used in the bore water system.
l If the temperatures do not require water on the pads, the sump in the cooler remains unfilled and dry.
l There is potable water supplied to the hand basin through a TMV and cold water to the safety shower /eye wash.
l Treated bore water tanks are backed up from the potable water should the water level in the tanks drop to that level.
Lighting Controls
l The lighting control system of is composed of:
–One photo electric sensor for on off lighting control (only for external lighting)
–Photo electric sensors for dimming control
–Motion sensors (After Hrs)
–Light switches
–BMS time schedule
l Sensors measures light levels dims accordingly if adequate natural light is available.
Night Purge
l The configuration of the sloping spoon roof has vertical windows along the length of the building.
l These windows can be opened through the BMS to allow the building core to be purged overnight when the outside air conditions and internal building temperatures are suitable.
l This is similar to the operation of the economy cycle on an air handling unit.
Double Glazing
l Windows are double glazed and there is also the “white wall” windows on the eastern side of TETB to reduce thermal heat transfer through the windows into the building.
Metering
l Over 150 meters.
l Gas consumption for Domestic Hot Water (DHW), tri-generation system, café and whole building.
l Potable water consumption for the whole building, secondary supply to non-potable water tank, for DHW and café.
l Non-potable water consumption for the whole building, cooling tower, reverse osmosis (purified water in laboratories) and toilets.
l Electricity consumption measured for the two Main Switch Board (MSB) for the whole building, major equipment and each area.
l Lighting consumption measured for each area.
l Thermal energy for absorption chiller (cooling produced), tri-generation (heating recovered), Central Energy Plant (cooling produced) and boilers (heating produced).
The Importance of Effective Collaboration
Proven Best Practice & Innovation to Deliver
l The energy infrastructure in the building is important for its success
l The provision of comprehensive, up-to-date information through electrical meters and the ground floor foyer display system „Showcase‟ the 6 star Green Star rating.
l Specialist services incorporated to meet current requirements, while providing flexibility to meet future changes in technology as well as different teaching and research requirements.
Part 4:Other Case Studies
Part 5: Conclusion
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