Subscribe to newsletter

Submit Article

 



Editors Note: Passivent provide:

  • Passive ventilation

  • Natural ventilation

  • Natural daylight

  • Ventilation systems

Home

Advertise Here

Request Quote

CPD Seminar

 

Advertise Job

Advertise Job

Terms & Conditions

Terms & Conditions

Contact Building Design

Contact Building Design

e-mail Building Design

e-mail Building Design

 

- Building Design - Services & Construction Products Index

Request Information

Links Page

 


 

PASSIVENT - Passive Approach Inspires Greenpower

A showcase project to demonstrate the practicality of developing low energy commercial and office buildings has opened its doors.

The Greenpower Centre new headquarters for Greenpower Education Trust has been developed in partnership between architects Emission Zero, Fordingbridge plc and Passivent to provide an inspiring learning environment and innovative test bed for low emission technologies. The building itself demonstrates the concept, having achieved the best A rating for energy performance.

Using innovative ventilation technology pioneered by Passivent is a key element of the energy efficiency, combining two types of passive (natural) ventilation, one for the building’s open office and lecture area and also an iMEV system for the toilets. The former is managed by a state-of-the-art control system, which also operates the air sourced heat pumps and enables occupants to change the settings via the integral web browsing facility.

The ventilation strategy harnesses the passive stack principle, whereby warm air rises, pulling in cooler air behind it. The two-storey high building’s front façade is constructed almost entirely of glass. Passivent Aircool ventilation louvres set into the façade at low level combine with Passivent Airstract terminals on the green roof to implement the ventilation.

The Aircools supply cooler external air into the building. The Airstracts act like chimneys, drawing the warm, ‘used’ internal air upwards and outwards, creating planned air paths for the fresher air to circulate through the building’s open office and lecture areas. To further enhance the internal environment, the Airstracts have been acoustically treated to minimize noise penetration from the adjacent busy A27 trunk road.

Both Aircools and Airstracts are linked to Passivent’s advanced iC7000 control system. The controller constantly monitors air quality and temperature, adjusting airflow to maintain the desired ambient warmth and CO2 levels within whilst allowing temporary or permanent over-ride to suit needs. It can also enable cool air to enter the building in warmer periods, and provide night cooling- essential because of solar gain through the high proportion of glazing.

In the toilets, Passivent ‘s ‘intelligent’ iMEV system integrates ‘intelligent’ extracts and an ‘intelligent’ fan within a central extract system. The extracts open and close in response to varying humidity levels. The central fan is constantly monitoring the extracted air and as it detects the humidity content is more than a pre-set level, it boosts the extraction rate. As the extract will be open only in a room with a high level of humidity, boosted extraction will only take place in that room. The system works without any occupier input, and ensures the interior remains fresh, dry and odour- and condensation-free 24/7, even when the building is unoccupied.

Neil Rideout, Passivent joint managing director, observes, “We have worked with Greenpower for some years, helping encourage its promotion of sustainable engineering and design and supporting its youth programme of developing and competing electrically-powered cars.

“The new headquarters aims to inspire and encapsulate Greenpower’s objectives to provide an inspiring learning environment and testbed for low emission technologies; our focus on harnessing natural resources such as air movement and daylight in construction sits logically alongside.”

Natural ventilation is proven to reduce capital costs by 15%, operating costs by 50%, and almost eliminate maintenance costs, over conventional mechanical ventilation. It is also proven to reduce incidence of “sick building syndrome” and improve the performance and productivity of the building occupiers.

Aircool ventilators are installed in the building façade to provide controlled fresh air intake or extract as part of a natural ventilation system, or in conjunction with mechanical cooling systems where they can reduce the need for daytime cooling and air conditioning. Using just 2watts of electricity to operate the ventilation louvres, the Aircool units can be minutely adjusted to control airflow requirements taking into account the weather outside- the speed and direction of wind, rain, temperature, and the location of the units within the building façade, to ensure a gentle flow of fresh air into the building without draughts. Thermally broken and insulated, the units are more thermally efficient when closed than a standard double glazed window, thanks to a controllable damper.

Passivent Airstract terminals use only natural air movement to function, with the increased pressure at higher level creating suction, drawing the warmer internal air out of the building.

Aircools, Airstracts and the iC7000 controller are just part of Passivent’s comprehensive range of sustainable building solutions, which encompasses natural ventilation, daylighting and solar control. The company, part of the Building Product Design Group, is a founder member of the NatVent EC/EU-funded project co-ordinated by the Building Research Establishment to develop practical natural ventilation solutions for the commercial sector, and has contributed to the BSRIA guide BG2/2005 Wind Driven Natural Ventilation Systems, as well as being members of the DCSF steering committee on ventilation guidance for schools, Building Bulletin 101.

E-mail Passivent


Aco Building Drainage Drainage systems Drainage channels Building drainage Rainwater drainage News 270611

Action Storage Storage systems Storage shelves Garment hanging Pallet racking News 300611

Altro Wall cladding Safety flooring Door sets Floor covering News 290611

Ancon Wall ties Cavity wall ties Ancon wall ties News 010711

Armstrong Integrated Heat exchangers HVAC systems Speed pumps Renewable energy News 290611

Bilco Roof hatches Roof access Smoke vents Smoke ventilation News 270611

Cablofil Cable management Cable trays Cable baskets Wire trays News 300611

Celotex Thermal insulation Wall insulation Floor insulation Roof insulation News 270511

CGI International Fire resistant glass Insulating glass Pyroguard fire glass News 290611

CMS Acoustics Sound proofing Acoustic underlay Sound control Room acoustics News 010711

Danfoss HVAC drives Speed drives Inverter drives AC drives News 010711

Dorma Door closers Door hardware Glass doors Sliding doors News 300611

Dorma Door hardware Sliding doors Door handles Door furniture News 010711

Dulux Trade Dulux paint Gloss paint Trade paint Matt paint News 270611

Eaton Distribution boards Electrical accessories Fuse switches Fuse board News 010711

Eaton Electric Power systems Control systems Distribution boards Power quality News 300611

Eurocell Underground drainage pipes Plastic drainage pipe Plastic pipe News 010711

Forbo Floor coverings Linoleum flooring Vinyl flooring Commercial flooring News 010711

Formica Laminate doors Formica doors Formica counters Laminate countertops News 010711

Glidden Trade Glidden paint Trade paint Gloss paint Matt paint News 300611

Glidden Trade paint External paint Glidden paint Gloss paint News 290611

Ibstock bricks Brick pavers Clay bricks Brick slips News 270611

Jeld-Wen Timber windows Timber doors Exterior doors Interior doors News 290611

KAC Alarm systems Smoke vents Smoke alarms Smoke control News 270611

Kalzip Standing seam roofing Low U-valve roofing Metal roofing and cladding Solar solutions Green roof systems News 010711

Kawneer Parallel opening windows Architectural aluminium systems Curtain walling News 010711

Kawneer Solar shading systems Architectural aluminium systems Solar shading News 290611

Luvata Wall cladding Brass cladding Architectural cladding Copper surfaces News 270611

Marley Eternit Fibre cement cladding Rainscreen cladding Rainscreen cladding systems News 280611

Marley Eternit Roof tiles Roof slates Roofing tiles Marley tiles News 270611

Marshall Tufflex Electrical wiring Electrical trunking Wiring systems Cable trays News 280611

Mira showers Shower enclosures Shower trays Mixer showers News 270611

Mitsubishi Electric Air conditioning units Heating and cooling Air conditioning News 270611

Monodraught Natural ventilation Sun pipes Windcatcher system Natural daylight News 290611

Mumford and Wood Timber windows Casement windows French doors Window systems News 010711

Playgarden Play equipment Outdoor play equipment Garden play equipment News 270611

Polyflor Vinyl flooring Vinyl tiles Floor coverings Safety flooring News 300611

Polypipe Drainage pipe Underground drainage Plastic pipework Terrain drainage News 270611

Powerwall Modular buildings Insulation systems Building systems Modular offices News 270611

Promat Fire protection systems Fire protection products Fire protection News 010711

Roman Bathroom suites Bathroom showers Bathroom designs Bathroom cabinets News 270611

Siemens Building management BMS systems Building automation HVAC products News 280611

Steni Cladding panels Wall cladding Rainscreen cladding Cladding facades News 270611

Steni Rainscreen cladding Cladding panels Wall cladding Fibreglass panels News 010711

Thomas and Betts Cable fasteners Cable ties Conduit systems Flexible conduit News 290611

UK Flood Barriers Flood barriers Flood defence Flood dams Flood alarm News 290611

Unusual Rigging Stage engineering Rigging equipment Stage rigging Rigging services News 270611

Weatherite HVAC products Building services Air conditioning Air handling News 280611

Wienerberger Clay bricks Brick slips Block pavers Stock bricks News 270611

Wood Energy Biomass boilers Wood energy Wood boilers Pellet boilers News 290611

News Categories:
Passive ventilation Natural ventilation Natural daylight Ventilation systems

Arundel Jones Associates Ltd
Hill Farm Business Park, Linton Hill, Maidstone, Kent ME17 4AL
Tel : 01622 745333

news@buildingdesign.co.uk


See also:

| BuildingDesign Directory | BuildingDesign Tenders |

|BuildingDesign News Archives | 2006 | 2007 | 2008 | 2009

| BuildingDesign Recruitment | AJA Part Time Jobs Board |

© 2010 copyright all rights reserved Registered in England and Wales No. 07334149