Precision Ventilation Control for Sheffield University NAMRC
07 October 2013
Work at the NAMRC focuses specifically on innovative research into metals and manufacturing engineering, rather than radioactive research and the new BREEAM Excellent rated building, which was designed by Bond Bryan Architects, is based around an open plan 5,000 m2 workshop that incorporates cutting edge manufacturing equipment and facilities.
As the building already employs low energy and renewable initiatives, such as 320kW ground source heat pumps and a 900kW wind turbine, the use of natural ventilation was an ideal solution, as the temperature and air quality can be maintained within clearly defined set points while minimising the need for additional mechanical cooling.
To provide the high degree of control required, SE Controls, supplied, installed and commissioned a range of chain actuators, which are linked to the NAMRC building management system and are used to control the operation of the high and low level vents.
Twenty TGCO 24 15 actuators with a 350mm stroke length were installed on the building’s high level exhaust vents, while the need to protect against finger entrapment on the low level louvres prompted the selection of eighteen SE Controls’ TGCO 24 20 ‘Easi-Drive’ compact actuators each with 160mm stroke length.
SE Controls’ Project Manager, Darren Wainwright, explained: “It is absolutely vital that the natural ventilation strategy and system perform as designed to allow the right amount of fresh air to enter the building while ensuring that heat energy is not lost unnecessarily during the process. By using precision actuators to provide incremental operation of the system’s vents and louvres, it helps ensure that required performance is within the specified design parameters.”