[TRNSYS-users] TRNSYS-CONTAM-TYPE98

[Donya Sheikh Khan]

Actually it is TRNSYS that doesn't show me results, if I try to display the
results using Contam, it shows me my airflows


2014-10-18 8:47 GMT+02:00 Donya Sheikh Khan <donya_sh at msn.com>:

> Hi,
>
> Thanks again..
>
> I have tried to create a new model by trying to follow the cottage example
> as much as I can. I have connected TYpe98 to an equation which sends a
> signal 1 only if the outdoor temperatures are above 17. Still I don't get
> any air-flow to the orifice.
>
> I'm not sure of what you mean about "you need to connect something to the
> input signal.."?
>
> Regards
> Donya
>
> 2014-10-17 22:18 GMT+02:00 Dols, William Stuart <william.dols at nist.gov>:
>
>  You need to connect something to the “Input signal to control named:
>> <…>” INPUTS of Type98, i.e., <atrium_v1c>, <Rum2.1_eksc>, etc.
>> These values will be transferred to the associated named controls of the
>> CONTAM PRJ file via Type98.
>> Note that if you want to control more than one item in CONTAM with a
>> single value, you can use phantom control nodes within the PRJ.
>> You can reference the named control nodes within CONTAM with a phantom
>> node.
>> This is demonstrated in the cottage_dcv example provided with Type98
>> files.
>>
>> - Stuart
>>
>>
>>
>> *From:* TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] *On
>> Behalf Of *Donya Sheikh Khan
>> *Sent:* Friday, October 17, 2014 3:40 PM
>> *To:* TRNSYS users mailing list at OneBuilding.org
>> *Subject:* Re: [TRNSYS-users] TRNSYS-CONTAM-TYPE98
>>
>>
>>
>> Hi
>>
>>
>>
>> Thanks for your replay. Here is my model. I tried looking at the model, I
>> can't immediately see, what that can be causing this problem.
>>
>>
>>
>> Thanks
>>
>> Donya
>>
>>
>>
>> 2014-10-17 13:19 GMT+02:00 Dols, William Stuart <william.dols at nist.gov>:
>>
>> Donya,
>>
>> It sounds like you have the right idea, but it’s hard to tell exact
>> details from your description.
>> Have you run the example case provided with Type98?
>> This example provides control of simple AHS flows and an HRV fan via
>> control signals provided to/from CONTAM from/to TRNSYS via Type98, i.e.,
>> both signal directions are demonstrated to synchronize system flows between
>> CONTAM and Type56.
>>
>> If you want, you can send me your files, and I will look at them.
>>
>> There are some things you can do to help debug your issues:
>> - Create report controls in the associated CONTAM project file and view
>> outputs in <your project>.log file.
>> - Plot/output signals in TRNSYS to ensure correct logic, etc.
>> - Set the first value in the air file to 3 to write detailed data
>> exchange info to the Type98.log file available in the Type98 AppData
>> directory, e.g., in Windows 7 C:\Users\<you>\AppData\<Roaming>\NIST\Type98.
>>
>> Regards,
>> - Stuart
>>
>>
>> W. Stuart Dols
>> National Institute of Standards and Technology
>> Engineering Laboratory
>> Indoor Air Quality and Ventilation Group
>> 100 Bureau Drive MS 8633
>> Gaithersburg, MD 20899-8633
>> www.bfrl.nist.gov/IAQanalysis
>>
>>
>>
>>
>>
>> *From:* Donya Sheikh Khan [mailto:donya_sh at msn.com]
>> *Sent:* Thursday, October 16, 2014 2:26 PM
>> *To:* trnsys-users at lists.onebuilding.org
>> *Subject:* [TRNSYS-users] TRNSYS-CONTAM-TYPE98
>>
>>
>>
>> Hi
>>
>>
>>
>> I'm a student at Aarhus University in Denmark. I'm trying to create a
>> Contam model, where I have a section of a building with an atrium, where I
>> want to use natural ventilation during summer to ventilate the rooms.
>>
>>
>>
>> I use Contam3.1 and TRNSYS 17 to couple Type56 and Type98 with each
>> other. The coupling is going as planned. I have used constant controllers
>> in Contam to get manual inputs, so I can vary the opening area of my paths.
>> When I manually set the inputs from the controllers to have a value (e.g.
>> 1) in Type98 everything is well (I get values of the flow), and when I try
>> to connect it to an equation with a constant value, I still have a flow.
>> But when I connect the input values to an equation with a variable value
>> (e.g. from 1 if the outdoor temperature is 17C and above and 0 otherwise) I
>> don't get any flow (looking over 8760 hr) - it is as if it can't read
>> variable values.
>>
>>
>>
>> Now when I copy everything but just use Type97 instead of Type98 and use
>> a variable input value for the controller I get a flow. The only thing is,
>> I get a convergence error because the Type56 isn't converging. This gives
>> me some pretty huge errors when I compare my TRNSYS-Type98 model with
>> TRNSYS-Type97 model.
>>
>>
>>
>> My questions is, I really want to use Type98, is there any way I can fix
>> the problems with the model not accepting variable input-control-signals?
>> and if nothing can be done, how can I fix the convergence problem?
>>
>>
>>
>> --
>>
>> Regards
>>
>> Donya Sheikh Khan
>>
>>
>>
>> --
>>
>> Med venlig hilsen
>>
>> Donya Sheikh Khan
>>
>>
>>
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>> TRNSYS-users at lists.onebuilding.org
>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>>
>>
>>
>>
>>
>> --
>>
>> Med venlig hilsen
>>
>> Donya Sheikh Khan
>>
>>
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>> TRNSYS-users at lists.onebuilding.org
>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>>
>>
>
>
> --
> Med venlig hilsen
> Donya Sheikh Khan
>
>


-- 
Med venlig hilsen
Donya Sheikh Khan
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