CASE STUDY: 18 May 2010 – The Australian representation at the Shanghai World Expo 2010 has showcased its sustainability credentials by designing a pavilion boasting a number of sustainable features.
Running under the theme “Better City, Better Life,” more than 70 million visitors are expected to visit this year’s expo from 1 May until 31 October, with representatives from around the world showcasing their approaches to sustainable and harmonious urban living.
The $49 million Australian pavilion, which as part of a gold sponsorship was designed, project managed and constructed under budget over a 15-month period by Bovis Lend Lease, features a number of leading sustainable building practices, including;
Solar panel heating system:
- There are 40 square metres of panels installed on the top of the roof plant supplying hot water for the kitchen and wash areas.
- Two heating systems were originally proposed – both electric and gas – which would have meant duplication in the safety devices the two different systems would require. By opting for a solar heating system the pavilion achieves energy savings through reduced power use, and any failure or fault can be easily tracked
Rainwater harvest system (or recycle system)
A 20 cubic metre water tank has been installed to harvest water and treat/filter it for distribution, for example in toilets or for hosing down the external surfaces around the building. Benefits include a reduction in water consumption and utilisation of rain water.
Electronic Commutated Motor fans (replacing normal exhaust fans)
High efficiency sensor fans have bee used that have variable run rates depending on demand, allowing a quick response of air supplied. Standard fans in typical installations only have an on (full) or off setting.
Sensor lighting has been installed throughout the washrooms and back of house areas.
Structural Steel Framing
The structural steel frame for the pavilion was designed to be easily dismantled during the decommissioning stage to aid with re-use and recycling.
Weathering steel (supplied by BlueScope Steel) used on façade
- These special steel panels give the rich, red colouring to the building’s exterior. Approximately 3000 panels were used in the façade
- The addition of an alloy to the steel’s composition enables the development of an oxide layer, or patina, which is effectively maintenance-free
- The material can more easily be recycled than traditional cladding, which is composite and needs to be separated into elements before it can be recycled.
- Clever design by Bovis Lend Lease and Aurecon (façade consultant) included hidden gutter systems to ensure water run-off is kept away from the building’s façade.
The Green Building Converter
- Lend Lease has developed the green building converter as part of its gold sponsorship, an online program that demonstrates how the design and use of buildings can be changed to reduce their environmental impact using technologies and skills available today.
- The converter offers a totally interactive experience: the user is prompted through a number of scenarios to discover the green technologies that can be applied to both buildings and precincts to reduce the impact of the built environment. Through each scenario users also learn about the cost savings and other benefits that come from greening a building.
- It shows the environmental impact of buildings in terms of life cycle greenhouse gas emissions, energy consumption and water demand.
- The converter is consistent with international green building certification schemes and uses “green toolkits” and “building scenarios” to provide the user with an understanding of the value behind achieving a green building with recognised certification.