BUILDING SCHOOLS FOR THE FUTURE
ELGA Process Water closes the loop at Big Wood School
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LGA Process Water has just completed the cleaning and filling of over 5km of hot water system piping in a new building at Nottingham’s Big Wood School. Big Wood is one of the first to benefit under the Building Schools for the Future programme, a major government initiative aimed at rebuilding or refurbishing every secondary school in the UK using technology that has long term sustainability. Their new building, which opened in September 2009, has a new Energy Centre powered by Pure Plant Oil (rape seed oil). The Energy Centre was built by LowC, the renewable energy solutions provider. ELGA Process Water, part of Veolia
Water Solutions & Technologies, worked closely with LowC to develop a sustainable solution for treating the closed hot water
circuit which takes hot water from the new combined heat and power plant to heat the building. To ensure that no water-side problems reduce the system efficiency, the 5km long piping system was cleaned and flushed and then filled with 60,000 litres of high purity deionised water from one of ELGA Process Water’s Aquamove MoFi mobile deionisation units.
Corrosion inhibiting chemicals from
ELGA Process Water’s comprehensive Hydrex® range were added and the system was sealed. But the best closed systems lose a small amount of water over the course of time and it is essential for the long term sustainability of the system that these small losses are replaced with deionised water. For this purpose there is a make-up water plant consisting of two ELGA Process Water Service DI (SDI)
exchange cylinders which produce deionised water on site from mains water. When the SDI cylinders are exhausted – after about a year – they are simply replaced with new ones and taken to ELGA Process Water’s factory for regeneration. With the cylinder exchange programme, no waste products are produced on site making the school safe and environmentally friendly. Visit
www.elgaprocesswater.co.uk for further details of Aquamove, SDI, Hydrex and other water treatment solutions and technologies.
CYNNAL and Epson install energy efficient Projection in Wales’ first green school
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stablished in 1996, CYNNAL provides curriculum and technology support across 250 primary schools and 19 secondary schools for three local authorities in North West Wales. CYNNAL sources and installs ICT equipment across its schools, and has been installing projectors since 2000. CYNNAL has identified that schools often leave their projectors on all day and night, wasting energy and reducing lamp life, creating a costly process for schools who often complain at the frequency of replacing projector lamps. CYNNAL contacted its preferred supplier (and Epson reseller) Matrix AVM (a leading provider of audio visual services to the UK education sector) to assist with a solution that, not only had
low environmental impact, but also reduced costs for their school network. Matrix AVM asked Epson to assist CYNNAL in devising a network that offered remote monitoring and that would be energy efficient, for a primary school (Ysgol Y Graig, Llangefni). The project was to be used as a pilot before being rolled out across CYNNAL’s school network. Ysgol Y Graig is a new build school on a greenfield site in Llangefni on the Isle of Anglesey and is the first ‘green’ school developed by the authority.
Ysgol Y Graig is the first school on the island to use a sustainable timber panel system. Half of the roof is a sedum green roof system and the school also includes solar panels, a wind turbine and has a ground heat pump. The school is designed to be self-sufficient from a power point of view and most materials used in the school are recycled.
The environmentally friendly design of Ysgol Y Graig aims to provide low energy consumption making it important for the school to have a technology system that matches its environmentally friendly ethos. To save energy, promote a more efficient way of operating
and enable CYNNAL’s technicians to spend less time travelling from school-to- school to tend to each projector unit, Epson recommended the Epson EasyMP™ Monitor Suite. This system provides a more sophisticated way of managing the projector fleet for CYNNAL as the software enables the technicians to monitor and operate each projector remotely. CYNNAL can programme each projector to turn off at a set time, at the end of the school day for example, ensuring that they are not left running overnight wasting energy and lamp life. Each of the Ysgol Y Graig’s twelve classrooms has a Smart board and an Epson EMP-400We short throw projector. The Epson EMP-400We model was suggested for the school because the vaulted roof of the school would have made ceiling mounting for the projectors impossible. The projector is mounted close to the screen so that teachers and pupils can work on the whiteboard without getting in the way of the projector, causing shadows.
The school hall has had an Epson
EMP-6110 projector installed. This higher brightness projector has been designed for bigger rooms and is networked to be monitored in the same way as the classroom projectors.
www.epson.co.uk
SUSTAINABLE FM | JUNE 2010 |49
High purity
deionised water
provided by ELGA’s MoFi mobile units
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