[TRNSYS-users] Schedule for days, weeks and months

[saeid mohammadzadeh]

Dear Dr. David;
I think my case is the second one that pops up in the online plotter and
stops running. I will send my project tomorrow from my office with
explanation about it. The first case is also interesting and I need to
learn it (as I did not get it completely) for future works.

*Best Regards*
*Saeid Mohammadzadeh Bina, Dr. (Eng.)*
*-------------------------------------------------*
*Akita University*
*Graduate school of International Resource Sciences*
*.1-1 Tegata gakuen-machi, Akita 010-8502, Japan*
*Tel: **+815068665026 (Japan)*
*       +989141011757 (Iran)*
*E-mail: **d9515254 at s.akita-u.ac.jp* <s.mohammadzadeh66 at gmail.com>
*           mohammadzadehsaeid at yahoo.com <mohammadzadehsaeid at yahoo.com>*


*-------------------------------------------------*


On Thu, Aug 13, 2020 at 11:55 PM David BRADLEY <d.bradley at tess-inc.com>
wrote:

> Dr. Bina,
>
>  There are two kinds of division by zero errors. If you're getting one
> that is being reported by TRNSYS in the error/warning log then make sure
> that any equations you have in your input file are written like:
>
> myEquation = 1/MAX(myVariable,0.)
>
> The other kind of division by zero error is an ugly unhandled one that
> comes up in a popup window over top of your online plotter. If that is the
> kind that you are getting then please send the project and any additional
> files needed to run it to your distributor. They'll need to get into the
> code to find the cause of the error.
>
> kind regards,
>
>  David
>
>
> On 08/13/2020 09:40, saeid mohammadzadeh wrote:
>
> Dear Dr. David;
> Thank you so much for your reply. I finally found a way but still does not
> work for the cooling condition. I made seasonally and hourly forcing files
> and connected them as an input file to my building (as you mentions in this
> email also). But unfortunately for cooling give the error of division by
> zero...
> Another way is using an excel file but again in the cooling does not work
> and I think it is because of the zeros in the days, weekends, and no
> airconditioning seasons.
>
> *Best Regards*
> *Saeid Mohammadzadeh Bina, Dr. (Eng.)*
> *-------------------------------------------------*
> *Akita University*
> *Graduate school of International Resource Sciences*
> *. 1-1 Tegata gakuen-machi, Akita 010-8502, Japan*
> *Tel: **+815068665026 (Japan)*
> *       +989141011757 (Iran)*
> *E-mail: **d9515254 at s.akita-u.ac.jp* <s.mohammadzadeh66 at gmail.com>
> *           mohammadzadehsaeid at yahoo.com <mohammadzadehsaeid at yahoo.com>*
>
>
> *------------------------------------------------- *
>
>
> On Thu, Aug 13, 2020 at 11:32 PM David BRADLEY <d.bradley at tess-inc.com>
> wrote:
>
>> Dr Bina,
>>
>>   If you have access to the TESS Applications Library, you can define
>> such schedules using the Types in that library. In TRNBuild you will need
>> to select that the schedule values will come from INPUTS instead of from
>> SCHEDULES that are defined inside TRNBuild.
>>
>> best,
>>
>>  David
>>
>>
>> On 08/12/2020 23:12, saeid mohammadzadeh via TRNSYS-users wrote:
>>
>> Hello dear TRNSYS users;
>>
>> I have a question regarding the schedule for heating and cooling:
>> Firstly, I want to calculate the heating and cooling loads using the
>> energy balance method (just on the heating the cooling buttons) based on
>> the following time table:
>> For weekdays from 8 to 18 (either cooling or heating);
>> For the weekends off (either cooling or heating);
>> From Nov. to April "Heating";
>> From Jul. to Sep. "Cooling".
>> Secondly, I would like to use this schedule and also thermostat (either
>> schedule or zone temperature is 1 for heating or cooling) to command the
>> airconditioning system that I will add later.
>>
>> And another issue, which is not important now, on weekdays later I want
>> to use complex timing (8 to 18 full occupancy and other hours ratio of
>> office workers).
>>
>> *Best Regards*
>> *Saeid Mohammadzadeh Bina, Dr. (Eng.)*
>> *-------------------------------------------------*
>> *Akita University*
>> *Graduate school of International Resource Sciences*
>> *. 1-1 Tegata gakuen-machi, Akita 010-8502, Japan*
>> *Tel: **+815068665026 (Japan)*
>> *       +989141011757 (Iran)*
>> *E-mail: **d9515254 at s.akita-u.ac.jp* <s.mohammadzadeh66 at gmail.com>
>> *           mohammadzadehsaeid at yahoo.com <mohammadzadehsaeid at yahoo.com>*
>>
>>
>> *------------------------------------------------- *
>>
>> _______________________________________________
>> TRNSYS-users mailing listTRNSYS-users at lists.onebuilding.orghttp://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>>
>> --
>> ***************************
>> David BRADLEY
>> Principal
>> Thermal Energy Systems Specialists, LLC
>> 3 North Pinckney Street - suite 202
>> Madison, WI  53703 USA
>>
>> P:+1.608.274.2577
>> F:+1.608.278.1475d.bradley at tess-inc.com
>> http://www.tess-inc.comhttp://www.trnsys.com
>>
>> --
> ***************************
> David BRADLEY
> Principal
> Thermal Energy Systems Specialists, LLC
> 3 North Pinckney Street - suite 202
> Madison, WI  53703 USA
>
> P:+1.608.274.2577
> F:+1.608.278.1475d.bradley at tess-inc.com
> http://www.tess-inc.comhttp://www.trnsys.com
>
>
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