QATAR 1 GREEN DESIGN
central plant areas distributing services to a number of localised buildings. Providing the site infrastructure to
Jackie Portman outside the Khalifa stadium, which is under consideration for the 2022 World Cup
support these facilities in such an arduous desert environment presented a formidable challenge to building services designers faced with temperatures rising to 50C, humidity of 100%, occasional sand and dust storms, very low rainfall, strong prevailing winds, and a coastal environment. Qatar has also set itself high sustainability goals through its National Vision 2030 programme, including targets to achieve LEED Gold and Platinum certification for its buildings. Local water usage figures
are some of the highest recorded worldwide. At Education City water is sourced as part of the power-generation process from desalination plants, and in part from the existing water table approximately two metres below ground level; despite the high levels of suspended solids and chloride as heavy metals and faecal coliforms existing at this level, this water is treatable by applying principles of reverse-osmosis. Water used for domestic purposes and
chillers, cooling towers and pumps makes district cooling work more efficiently than other systems, resulting in projected electricity savings of between 40% and 60% when considering unitary equipment. In addition, due to scarcity and cost of potable water, it was more practical and economical to treat and use sewage effluent for large district cooling plants for the cooling tower water make up supply than for smaller, scattered cooling plants. Electrical power is derived from gas-fired
As a country dominated by readily available prime energy sources, Qatar is catching up and embracing the challenges of global sustainability
power plants to accommodate an eventual maximum demand of 350 MVA spread over 11 66 kV sub-stations. However, a solar farm is planned that will contribute to the electrical supply availability at Education City. Education City houses
two data centres, and a third is planned. Private fibre-optic campus backbone cables support a converged network carrying video data transmission, voice and
for irrigation and fire services is stored and treated in each of the seven central plants where 72 hours of storage capacity is provided in 500,000 cu m tanks (equivalent to about 200 Olympic-sized swimming pools). A centralised district cooling system is
provided from the central plants, each with a refrigeration capacity of 280,000 tons using 3.3kV chillers. The use of centralised
CIBSE Qatar group set to grow
The group, formed last year, has more than 40 members and this is expected to grow as the construction industry in Qatar continues to expand. Last year, CIBSE chief executive Stephen Matthews and CIBSE president-elect Andy Ford visited the group and presented an update of CIBSE strategies and aims. The group offers a range of
services including technical presentations, social events, advice for new and potential members, and schools and university liaison. It is
32 CIBSE Journal July 2011
also a focal point for the local enforcing authorities in developing their own standards and regulations. Qatar is aiming to develop
and train its own nationals to eventually reduce the reliance on expatriate workers. CIBSE Qatar fully embraces this and offers the necessary support
to the Qataris. l For more information, contact the chairman Michael Daly at michael.j.daly@
aecom.com Details on the group are also available at
www.cibse.org
building management system traffic. A state of the art SCADA-driven command and control centre is planned to centralise control of these systems and also to include centralised facilities management services. Utility services are distributed from the sub-stations and central plants in a network of more than 50 km of underground tunnels (typically 4m x 4m in aspect with 5m of cover) which run around the site and which are arranged so that the new buildings can connect into the valved services. International consultants have largely
been responsible for the design of the infrastructure. A number of UK consultants have been responsible for the design of buildings on the campus. The project is managed by Astad Project Management, which is a joint venture between Qatar Petroleum and Qatar Foundation. As a country dominated by readily available prime energy sources, Qatar is catching up and embracing the challenges of global sustainability. It is trying to use its resources wisely with the next major challenge of delivering a carbon-neutral Football World Cup in 2022.
l DaviD Baker and Jackie Portman work for Qatar Petroleum’s Special Projects Division, Astad Project Management
www.cibsejournal.com
Jackie Portman
Paul Cowan/
Shutterstock.com
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