[Bldg-sim] Pilkington Profilit translucent glazing - thermal performance

[Paul Carey]

Lars,

That's exactly why we modelled it as a glass brick.  To be fair it's often
used outside of the conventional glazing system to provide architectural
features or in place of an opaque wall to gain areas of translucency into
deep plan areas where they would otherwise suffer from being miserable dark
corners.

Paul





-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Lars O. Grobe
Sent: 14 September 2010 11:43
To: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Pilkington Profilit translucent glazing - thermal
performance

On 13.09.2010 21:01, bldg-sim-request at lists.onebuilding.org wrote:
> Pilkington Profilit translucent glazing - thermal performance

Some points without any warranty ;-)

- It is an open system, you cannot evacuate it or fill it with any special
gases

- There are several options to improve perfomance like reducing solar
transmission or adding e.g. translucent insulation, coating inside
surfaces,...

- For double-glazing, the heat transfer should be about 2.8 W/m2K in a
simplified model. However, it may be interesting to have a closer look at
the non-homogenous facade structure.

- Visible light transmission in the double-glazing setup could be assumed to
be about 75% - however be aware of scattering, this is not clear glass and
thus cannot be treated as such when you look into daylighting.

Cheers, Lars.