[TRNSYS-users] python/trnsys

[David BRADLEY]

Maurice,

   I'd recommend doing some tests to confirm to yourself that 
capacitance is indeed having an impact. Start the building (or zone) 
with a high temperature and just let it cool down in a constant 
temperature, no solar environment. Now change the capacitance by an 
order of magnitude then do the test again. The zone should cool down 
either more slowly or more quickly depending on whether you multiplied 
or divided the capacitance by 10. I usually use a value of the 
volume*1.2*1.007*f where f is a multiplier that ranges between about 5 
and 10.

kind regards,

  David



On 10/26/2022 02:30, Maurice Charbit - OZE-ENERGIES via TRNSYS-users wrote:
> Hi all
>
> I am using B18
>
> When I change the volume that provides  different results. By default 
> capacitance is 1.2*volume. But when I change, manually, the 
> capacitance value that gives no change. It seems that the capacitance 
> has no effect, whereas in the documentation it is written
>
> /In order to simplify the input, default values for all parameters 
> except the volume are provided. The capacitance will be automatically 
> set to a default value of 1.2*volume. However, it is recommended to 
> check the default values carefully and to adjust them if necessary./
> ------------------------------------------------------------------------
> *De :* Maurice Charbit - OZE-ENERGIES
> *Envoyé :* mercredi 17 novembre 2021 14:07
> *À :* trnsys-users at lists.onebuilding.org 
> <trnsys-users at lists.onebuilding.org>
> *Objet :* python/trnsys
>
> Hi all,
>
> I am using subprocess.call in Python to run trnsys
>
> When trnsys crash, trnsys opens a windows and waits for a manual 
> response. How can I circumvent this issue ?
>
> Regards
>
> Maurice
>
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy System Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

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

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