[TRNSYS-users] TRNSYS-CONTAM-TYPE98

Sat Oct 18 00:03:04 PDT 2014

Sorry I forgot to attache the files

2014-10-18 9:01 GMT+02:00 Donya Sheikh Khan <donya_sh at msn.com>:

> 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
>
>


-- 
Med venlig hilsen
Donya Sheikh Khan
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