[TRNSYS-users] Wall/Area definition in TRNBuild

David BRADLEY d.bradley at tess-inc.com
Mon Nov 5 14:37:55 PST 2012


Wang,
   There has been a debate about this question in the industry for some 
time. I think the consensus is that the dimensions of the room should be 
taken from wall center to wall center and from the top of one floor to 
the top of the next floor. If I am reading your case correctly, I think 
the areas should be based on the dimensions 9.1, 7.1, and 3.1m
Regards,
  David

On 11/5/2012 05:31, 王洋 wrote:
> Dear all,
>
> I have a small question for Wall/Area definition in TRNBuild using 
> TRNSYS 16.
>
> What does Wall/Area exact definition in TRNBuild mean? Does its area 
> include the thickness of wall or not? i.e. How do we calculate wall's 
> area in TRNBuild? If the netto room volume was 9*7*3 m3 
> (length*width*height), the gross was 9.2*7.2*3.2 m3, the Area of 
> floor/ceiling should be 9*7 m2 or 9.2*7.2 m2?
>
> Thanks!
> Br.
>
> wang
>
> 2012/11/3 <trnsys-users-request at cae.wisc.edu 
> <mailto:trnsys-users-request at cae.wisc.edu>>
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>     Today's Topics:
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>        1. Re: Type 15 with high latitude (Matt Duffy)
>
>
>     ---------- 已转发邮件 ----------
>     From: Matt Duffy <duffy at tess-inc.com <mailto:duffy at tess-inc.com>>
>     To: <trnsys-users at cae.wisc.edu <mailto:trnsys-users at cae.wisc.edu>>
>     Cc:
>     Date: Fri, 02 Nov 2012 13:42:51 -0500
>     Subject: Re: [TRNSYS-users] Type 15 with high latitude
>
>     Dear Laurent Georges,
>
>     This should not be an issue now with the latest version,
>     17.01.0025. Please make sure that you are using this version, and
>     if you continue to have problems, please send me the *.tpf.
>
>     Thank you,
>
>     Matt Duffy
>
>     On 2012-11-01 05:59, Laurent Georges wrote:
>
>>     Dear TRNSYS users,
>>
>>     When using the Type15 to read the Meteonorm weather file of a
>>     location at high latitude (e.g. Tromsø in Norway), the simulation
>>     stops with the following error in middle of the summer period :
>>     “An /simulation time step is greater than the data time step for
>>     the radiation calculation.  The simulation time step needs to be
>>     reduced./” This error only occurs if the simulation time step is
>>     taken lower than 1h, and the reduction of the time step does not
>>     prevent the simulation to crash. Does someone has an experience
>>     with that? Is there a way to fix the problem? I am using TRNSYS 17.
>>
>>     In advance, thank you,
>>
>>     Best  regards,
>>
>>     Laurent Georges
>>
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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