[esp-r] Re: Urgent: Shading devices

[Jon Hand]

Obstruction blocks are static in ESP-r. 

Usually optical properties are calculated via and
external application such as WIS or Window5.2
and then the data is added to the ESP-r optical
database.

Zone surfaces which are transparent can have optical
properties that change based on a limited number of
sensed conditions (and/or time).  You can turn on
a trace facility at simulation time which should provide
indicators of the solar that is being absorbed in the
transparent layers.  And a change in optical
properties should show up in reports/graphs related to 
solar-entering a zone which should show a change in value 
when the alternative optical properties are in place.  There
is code awaiting incorporation in the standard
distribution which improves the trace facilities.

The most simple approach is to change the optical
property of the glazing facing the outside to approximate
the action of the external shading device.

-ESRU

-----Original Message-----
From: esp-r-bounces at lists.strath.ac.uk on behalf of Heiko Wöhrle
Sent: Sun 9/17/2006 11:03 AM
To: esp-r at lists.strath.ac.uk
Subject: [esp-r]  Urgent: Shading devices
 
Hello everybody,

i have a really urgent and hopeful simple question:
what is the easiest way to implement a external shading device like a 
jalousie (that closes at a specific radiation) in esp-r?

i tried switching the properties of the transparent layers (in the TMC) 
but there are some questions about:
- how can i calculate the optical properties with the jalousie/blind?
- can i see the status of the tmc, whether the jalousie is closed or 
not, in the result analysis?

i think drawing the jalousie as an obstruction would be to detailed an 
also i haven't found a possibility to switch the obstruction on/off

i'm really looking forward to your replies cause i got to have the first 
results of the simulation on Wednesday.

Thanks in advance

Heiko Wöhrle

Umweltmanagement
und -technik GmbH

Lise-Meitner-Str. 15
D-89081 Ulm

Fon  +49 731 / 50 99 55 2
Fax  +49 731 / 50 99 50 0

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