WINDOWMASTER DELIVERS PRIORITY SCHOOLS PROGRAMME WHITE PAPER
WindowMaster (www.windowmaster.com) has produced a new white paper for contractors on how best to ensure natural ventilation systems in new schools meet the criteria for the Priority School Building Programme. The white paper can be downloaded free from tiny.cc/SchoolVentilation.
Europe’s largest provider of natural comfort and smoke ventilation solutions is seeking to help architects, specifiers and contractors make the right choices in setting out strategies for natural ventilation.
In June 2013 the Education Funding Agency (EFA) (www.education.gov.uk/aboutdfe/executiveagencies/efa) released a revised version of its Facilities Output Specification for the Priority Schools Programme. It differs from the Building Schools for the Future programme in that it emphasises efficient and effective environmental performance by targeting ventilation, heating and acoustics.
WindowMaster’s Richard Arnott said: “The Priority Schools Programme has set out a number of strict criteria relating to thermal comfort, carbon dioxide levels and acoustics. Failure to comply with these is likely to cause major headaches for designers, contractors and clients that have to pay to put them right.
“These criteria can be easily achieved using a purely passive natural ventilation strategy with automated high level windows.”
WindowMaster has developed a white paper which uses dynamic thermal and CFD modelling to demonstrate how careful design and precise control for natural ventilation are essential in the delivery of a compliant natural ventilation strategy. It shows how this can be achieved without the need for mechanical fans and mixing boxes, or their associated energy and maintenance costs.
Richard added: “The new performance specifications are based on the building itself, its location or specific client needs. Effective natural ventilation solutions must be aligned to these factors.
“WindowMaster helps contractors take into account such things as multi-speed operation, pressure safety, actuator position feedback, wiring routes, synchronisation and fault indication in order to deliver precise control within the first five centimetres of window opening. This helps to control temperature, carbon dioxide and noise, reduces draughts and improves building security.”
MOTORLINK LAUNCHES COMMUNITY WEBSITE
A new website has been launched to provide a ‘community base’ for users of MotorLink™ digital communications technology for window control systems.
The new website (www.motorlink.org) is the home of the MotorLink™ community, a group of companies which believes in setting a standard for intelligent window control based on open, interoperable communication standards. It provides a one-stop-shop for architects, consultants, specifiers and installers where they can find all the information they need on solutions for indoor comfort and smoke ventilation in just a few clicks of a mouse.
The community is made up of controls companies, window companies, installers, architects and consultants who all share in the vision and belief that having a common open standard will help to drive the building controls industry to the next level.
MotorLink™ is a state of the art digital data communication technology which provides improved control and functionality where automated windows and natural ventilation are part of a building management system (BMS).
MotorLink™ offers precise and accurate control. Because it operates within open standards its operation does not require expensive dedicated software systems. The versatile range of functionality of the MotorLink™ system also means that BMS suppliers and facade companies can deliver robust, flexible control solutions tailored to specific project requirements.
MotorLink™ features precise position control, three-speed actuator operation, synchronisation between multiple actuators on the same window and reduced risk of entrapment. Other features include a reversing function, which protects the weather seals around the window, fault indication and online set-up.
Millimetre-by-millimetre control enables an optimal indoor climate to be obtained whatever the weather or the season. Two-way communication between the MotorLinkTM window actuators and the MotorLink™ MotorController enables the BMS to accurately position the windows. The actual position of a window is logged and stored in a secure memory within the electronics of each MotorLink™ enabled actuator. Position information is therefore retained even in the event of power loss.
Neil Pepper, sales director for Smoke Control Solutions Limited, a MotorLinkTM partner and installer, says: “Natural ventilation and smoke ventilation has moved to the forefront of building design in recent years with the increasing focus on energy consumption and sustainability. As a result, demand for automated and intelligent facades has grown.
“The MotorLink™ community exists to actively promote the use of open technology to create a standard automated window control system suitable for any type of building and any type of application for natural ventilation and for smoke ventilation.
“By working with the MotorLink™ design teams, contractors and the supply chain will be in a unique position to help developers save money. There is no better way to secure a budget than by choosing trusted solutions based on international standards. By using actuators and MotorControllers with MotorLink™ technology no additional dedicated software development is required – simply set up some parameters online to interface with KNX, BACnet, LON or Modbus to reduce commissioning times and costs.”
WINDOWMASTER DELIVERS BUILDINGS ‘TRULY FIT FOR PURPOSE’
WindowMaster (www.windowmaster.co.uk), Europe’s largest provider of natural comfort and smoke ventilation solutions, has presented important research findings on the energy consumption of ventilation systems at a CIBSE Technical Symposium.
Fittingly, the symposium was held at the Arts and Design Academy at Liverpool John Moores University, one of WindowMaster’s NV Advance™ projects.
WindowMaster’s Jannick Roth presented a paper entitled 'Hybrid Ventilation – The Best Ventilation Concept for Future School Buildings', based upon modelling work completed by the Fraunhofer Institute. The paper demonstrated that natural ventilation already provides reduced energy consumption at a rate that meets regulations that will not be generally in force until 2015.
Regulations coming into force in 2015 stipulate that specific fan power (SFP) should be reduced from the current standard over the next two years. Specific Fan Power is the energy-efficiency of fan air movement systems measured by the electric power that is needed to drive a fan relative to the amount of air that is circulated through the fan.
Natural ventilation already has this energy consumption whereas primary energy consumption from mechanical ventilation must come down from a current level of almost 30 KWh/m2/year.
The Fraunhofer study presented at the CIBSE symposium compared three systems – automated natural ventilation (NV), balanced mechanical ventilation with heat recovery (MV) and hybrid ventilation (HV) – using detailed modelling for the refurbishment of an existing school building. The energy demand for heating and ventilating the building using each of the systems was calculated for three European cities: London, Copenhagen and Munich.
The result shows that HV, combining both mechanical and natural ventilation elements, enables energy savings of up to 50 per cent compared with MV at 2015 performance levels or NV alone.
George Adams, CIBSE President Elect, said: “The papers address practical engineering experiences as well as current research and development. The programme for the technical symposium shows the depth of work that is being undertaken to take our knowledge and understanding forward.”
Richard Arnott, WindowMaster UK and Ireland market manager, added: “’Delivering buildings that are truly fit for purpose’ was the theme of this year’s technical symposium and we were very pleased to be part of it.
“The symposium provided an opportunity for building experts to exchange practical experience as well as new research findings and observations to help inform the practice of good building services engineering into the future.
“It was also pleasing to note that research has shown that energy consumption figures for NV systems are much better all round compared to mechanical systems.”