healthcare build & design special report
51 Get inspired by Healthy Residential Comfort® R
enson is innovation with a clear vision: ensuring the occupant’s health and .comfort, while taking energy efficiency
and the added value of aesthetics into considera- tion. How can you optimise your design aesthetically and functionally? Thanks to the combination of ventilation, nightcooling, sun shading and outdoor solutions, Renson is creating healthy and comfortable living and working spaces, while energy consumption is reduced to a minimum. The continuous supply of fresh air and the
extraction of contaminated air through a demand- driven ventilation system enables people to breathe healthy air at all times. First, it is important to extract polluted air from rooms and ensure it is replaced with fresh air. As people themselves are not able to detect changes in air quality or too high concentrations of CO2
or VOC’s, it is important
that the ventilation level can be automatically adapted. Through integrated, intelligent sensors in a central demand-controlled ventilation unit, the ventilation will only go to a higher extraction level
in those rooms where higher ventilation levels are required. This automatic adaptation saves 30 to 50 per cent of energy as compared with a permanent ventilation flow. Ventilative cooling, also known as
‘nightcooling’, is the principle where cooler outside air is used to naturally cool down the house. Large natural air flows are conducted into the house via louvres. Outside sun control guarantees comfort at 3 levels: thermal, visual and aesthetic comfort. Exterior window blinds allow the warmth of the
sun to enter when required, but prevent unnecessary cooling costs on warmer days. Large glass panels are frequently chosen in contemporary architecture, while excessive sunlight can cause overheating, disruptive reflections on screens and discoloration of the furniture and decor. An efficient outdoor sunscreen – sun control blades for the frame, brise-soleil above the window, sliding panels or wind-resistant screens – enables the occupants to enjoy the sun at any time of the day. The systems stop the sun rays from heating the
interior, without disturbing the garden view. Aluminium blades provide striking facades with
straight continuous lines. The ventilation and sun- screen systems are hardly noticeable from the inside, while invisible door systems ensure that closed doors and walls appear as one, without any disruptive frames and hinges.
01622 754 123
www.rensonuk.net enq.157 Energy efficient, intelligent ventilation system improves indoor air quality in care homes
Natural ventilation specialist Passivent has introduced iMEV Total, an ‘intelligent’ mechanical extract ventilation system that offers an automated, energy efficient approach to optimising air quality. It is suited to large, multi-residential properties such as care homes where refreshing good indoor air quality is important for occupant well-being. The humidity-sensitive ceiling mounted extracts are flexible and adapt to the ventilation needs of individual rooms, increasing extraction rates as required in different areas at different times, without affecting other areas where ventilation is not needed. With ventilation controlled by the demands of the room environment, no user intervention is required. iMEV Total includes a ‘constant pressure’ fan that runs continuously yet varies its speed according to the humidity levels of the different areas of the building by sensing the pressure in the ductwork. At night, when demand and humidity levels are low and the extract units reduce in open area, the fan speed reduces to the quietest minimum setting. With its constant operation and automatically adjustable fan speed, lower energy usage is achieved. Using iMEV Total, a lower level of background ventilation is required to comply with Building Regulations and Building Standards compared to intermittent extractor fans. The system can also be installed in student accommodation, apartments and hotels.
enq.158
Popular commercial tap range extended
users. The Performa range now includes new design Non-Concussive high per- formance tap which benefits from a flow rating of 3.8 litres/min whilst the auto shut-off function gives 12-15 seconds of free flowing water. The inner cartridge has been redesigned to provide a smoother operation and easier push mechanism. It also benefits from a multi-directional filter which is fully adjustable providing a flow of water suitable for a range of sinks and applications.
A popular commercial tap range has undergone a major design and functionality overhaul to ensure modern water saving efficiency and design credentials are met. The ‘Performa’ range by Pegler Yorkshire has seen amendments to the classic design as well as the range extended to provide further options for commercial specifiers, plumbers and end
enq.159
Lighting the way for an improved experience
Traditionally lighting has always been a huge proportion of a hospital's energy budget but with the rapid development of LED solutions that offer a greater level of performance and reliability Warwick Hospital was confident it could provide better lighting for less in three new wards. Working with
Tridonic partner, Century Lighting a lighting scheme was devised that delivers an optimum working environment, flexibility and comfort for the patients and thirdly meets the energy and cost efficiency criteria of the Trust.
01256 374319
www.tridonic.com enq.160
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