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Introducing Passivent
Airscoop Builder
WHAT IS IT?
Passivent Airscoop Builder is a new utility for modelling Airscoop roof-mounted
ventilation terminals and their benefi ts to building performance. It has been developed
by Environmental Design Solutions Ltd (EDSL) and Passivent for use with Tas software.
WHAT IS TAS?
Tas is a building thermal analysis tool commonly used for calculating energy
consumption and assessing peak summer temperatures. It is approved by the CLG
for Part L calculations and for producing EPCs (energy performance certifi cates). The
positive impact of Airscoops on room ventilation can easily be incorporated into these
calculations and Tas has a long history of modelling naturally-ventilated and mixed-
mode buildings to a high degree of accuracy.
WHAT DOES THIS UTILITY DO?
Developed in cooperation with Passivent using real test data and
experimental results obtained by an independent Research Institute
1
,
this new utility allows Passivent Airscoops to be modelled accurately in
Tas by using the measured performance data for each model of Airscoop.
It is not only accurate but also provides a quick way of assessing many
Airscoop options. Rather than modelling the Airscoop manually using Tas
3D Modeller, it automatically provides Tas Building Simulator with the
geometry, construction materials and performance parameters specifi c
to the selected Airscoop model.
1
A.D. Shea, A.P. Robertson, G.J. Levermore, N.M. Rideout, “The performance of a wind-driven ventilation
terminal”. Proceedings of Institution of Civil Engineers, Buildings and Structures, In press (2010).
WHY USE IT?
Passivent Airscoop Builder is a useful tool for a fast assessment of how
well a particular Airscoop system will naturally ventilate your building
- simulated using Tas which is state of the art, tried and tested building
simulation software.
For more information see
www.edsl.net
and
www.passivent.com
CIBSEnov09 passivent Advertorial.indd 33 19/10/09 14:08:09
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