temperature swing of only +0.2°C (most room thermostats allow 1°C or even 2°C swings). This control ensures the room temperature does not vary and removes the necessity to turn up the temperature (and energy use) to regain heat, or open windows (losing energy) to cool a room down. It is possible to set up Synco™ living so that adjustments to room temperature and time programmes can only be made centrally to avoid tampering and this avoids intentional or unintentional manual changes that would degrade energy efficient operation. In addition, the system uses extremely quiet radiator valve actuators to ensure room occupants are not disturbed by valve noise, which is especially important in sleeping areas.
Security
A useful by-product of the Synco™ living system is an increase in building security. With constant room temperatures occupants are less likely to open – and forget to close – windows to keep cool. With window contacts in place meaning that the building heating is turned off if windows are left open, occupant behaviour is soon attuned to ensuring windows are closed after opening briefly for ventilation. This helps secure the building against unwanted intruders.
SYNCO™ LIVING IN ACTION A recent installation of the Synco™ living system is delivering tangible benefits from increased energy efficiency measures. The Kexgill Student Group has utilised the system at one of its properties in Bradford, West Yorkshire. Kexgill is one of the largest private student landlords with nine offices in the UK and throughout Germany.
The company currently operates some 600 properties across the UK and for the past 30 years has offered affordable accommodation for student rent. Wishing to optimise the energy efficiency of a building which comprised 14 individual flats, Kexgill worked with Siemens to install the Synco™ living controls system to help ensure consistent temperature delivery and optimised energy use according to the needs of the occupants. The wireless system, through use of two QAX910 central controllers installed in closed cabinets, oversees the temperature and energy needs of all 14 apartments and communal areas within the building through a flexible approach that underpins the occupants’ needs. When, for example, the students are occupying the building, the temperature is set at a comfortable 21°C. This drops to a more energy efficient 19°C when the
Cavendish to explain Clean Room Technology at the Energy Solutions Show
F
or the last 15 years Cavendish Engineers have been involved in the design and build of clean room technology. Their innovative engineering design of controlled environments enables them to
provide technical solutions to the most challenging of environments. Cavendish Engineers have recently been appointed by E2V technologies as the main contractor for design and build of their new clean room facility. e2V deliver solutions, sub-systems and components, to these advanced systems companies, for their specialist applications within medical & science, aerospace & defence, and commercial & industrial markets.
The clean room projects includes; an ISO Class 6 facility, complete with 6 clean rooms, a clean corridor, change room and air lock.
The mechanical and electrical plant for this project was designed with stringent conditions on temperature, humidity and pressure. Energy efficiency and low running costs are notoriously difficult to achieve in such demanding cleanroom environments, but with localized re- circulating Air Handling Units both energy efficiency and reliability can be achieved. With LED lighting providing a higher
quality light for the cleanroom user for a much improved running cost against other existing lighting solutions.
This project coincides with e2Vs’ clean room expansion plan to meet the demands of their clients. The clean room facility is due for completion in October 2011. For more information please visit
www.e2v.com
COME AND MEET CAVENDISH ENGINEERS AT THE ENERGY SOLUTIONS SHOW
Cavendish Engineers are exhibiting at the Energy Solutions show at London Olympia on the 11-12th October 2011. Their M and E consultants will be on hand to offer any questions on clean room technology and controlled environments. They are currently taking bookings for free energy consultancy slots (along with VIP registration) with their lead Engineering consultant, Steve Allen, on their stand H83. Please email
events@cavendishengineers.net for more information.
PUBLIC SECTOR SUSTAINABILITY • VOLUME 1 ISSUE 3 37
building is largely unoccupied as the students attend lectures, and further lowers to 17°C at night when the demand for heat is largely reduced. Comparing the cost of energy use at the property versus the financial investment on the Synco living system, estimates predict that Kexgill will enjoy a saving of 31% in its annual energy use as a direct result of the installation, which equates to a 2.4 year return on investment timescale. The Siemens Building Technologies division is a leading provider of safe, secure and energy efficient solutions for buildings and building infrastructure. Building Technologies offers expertise in building energy management systems, HVAC, fire safety, security, low voltage power distribution and electrical
installation technology.
www.siemens.co.uk/ buildingtechnologies
Siemens was established in the United Kingdom 167 years ago and now employs 16,915 people in the UK. Last year’s revenues were £4.2 billion. As a leading global engineering and technology services company, Siemens provides innovative solutions to help tackle the world’s major challenges, across the key sectors of energy, industry and healthcare. Siemens has offices and factories throughout the UK, with its headquarters in Frimley, Surrey. The company’s global headquarters is in Munich, Germany. For more information, visit
www.siemens.co.uk
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