[esp-r] Re: Accounting for furniture in ESP-r

[Jon Hand]

Current versions of the project manager have an option
in the geometry menu to create horizontal or vertical
rectangular bodies (give an origin and two dimensions)
and it automatically assigns the boundary conditions.

It marks two surfaces with the correct edge ordering
and it marks the surfaces as partitions (each sees the other)
so that, for example, heat on the top of a desk surface
gets transmitted through the furniture.

That is the easiest way to include furniture in a room.

Recent studies indicate that internal clutter in rooms
helps in getting the room response over time correct.

-Jon Hand


-----Original Message-----
From: esp-r-bounces at lists.strath.ac.uk on behalf of Hall Monika
Sent: Wed 10/22/2008 4:33 PM
To: tobias.zitzmann at ise.fraunhofer.de; esp-r at lists.strath.ac.uk
Subject: [esp-r] Re: Accounting for furniture in ESP-r
 
Hi Tobias,

 

dow did you create the second surface, by copy and invert the first one? 

 

The error massages look like that the vertice sequence is not correct.

 

Regards

Monika

 

________________________________

From: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-bounces at lists.strath.ac.uk] On Behalf Of Tobias Zitzmann
Sent: Wednesday, October 22, 2008 3:25 PM
To: esp-r at lists.strath.ac.uk
Subject: [esp-r] Accounting for furniture in ESP-r

 

Hi, 

We have modelled a room as one simple zone and would like to include obstacles like furniture or additional thermal mass within the zone.
Following the FAQ list about how to create furniture, we have conducted the following steps: (a) Creation of two surfaces back-to-back inside the zone (not attached to other bounding surfaces) (b) assignment of a material from the material database to each of the surfaces whereby the material contains only half of the total thickness, (c) boundary assignment using 'adiabatic' conditions.

Conducting a 'check surface-vertex topology' after step (a), an error is displayed which states that the 'enclosure is improperly bounded' and that 'edges between vertices... may be unbounded'. What is the exact procedure to solve this problem? Is it for example necessary to link the furniture surfaces to the enclosing surfaces somehow? Any advice is appreciated.
Regards

Tobias