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KNOWLEDGE SHARING


From a live presentation from Australia on a CIBSE award-winning commercial development to the use of solar panels on a single home – this year’s two-day symposium covered the full range of building services systems. Tim Dwyer reports


CIBSE


president-elect David Fisk


addresses the Symposium


T


Phil Jones: concerns over automatic meter readings


he CIBSE ASHRAE Technical Symposium 2012, held at Imperial College London recently, provided a great opportunity to share and discuss


developments and applications of technology that contribute to the vast array of building services ‘systems’. The perspective was further widened this


year by ASHRAE (the American Society of Heating, Refigerating and Air conditioning Engineers) sharing in the planning and delivery of the Symposium and the meeting being attended by ASHRAE president Ron Jarnagin, together with other senior ASHRAE members. Although focusing on ‘systems’, the inevitable breadth that represents ‘building services’ meant that the delegates were treated to 50 presentations covering areas ranging from individual domestic installations through to multi-million square-foot US army bases.


David Fisk, CIBSE president-elect, (now president) opened the event, introducing a live presentation from Australia highlighting the story behind the CIBSE 2012 Building Performance Award-winning Darling Quarter project in Sydney – a 58,000 sq m, low-rise,


18 CIBSE Journal June 2012


campus-style commercial redevelopment. Neil Caswell of Norman Disney and Young described the integrated set of hybrid ventilation and air conditioning systems with control regimes that adapt the system operation to changes in occupancy; they sense not only CO2 but also inhabitant use and activity such as window and door actuations – including alerting occupiers if doors and windows are left open when it is not the most effective means of maintaining appropriate internal conditions. And with much of the UK experiencing


‘drought’, their application of black-water systems was of particular interest to the Symposium audience. As illustrated by Caswell, the system, thought to be the first of its kind in the world, treats sewage drawn from local networks to produce ‘clean’ water suitable for toilet flushing, irrigation and cooling tower make-up. So clean in fact that one of the project engineers was happy to drink it. Together with a tri-generation system (providing economical and secure power, heat and cooling) the development provided a major commissioning challenge. And it was specifically for successfully meeting this challenge that the NDY team


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