[TRNSYS-users] Concentrating PV-Thermal type 50

janeet anand jangun16 at gmail.com
Mon Jul 27 04:40:59 PDT 2020


Hi David,

1 more thing. On running a sample code (below) to see the effect of
concentration ratio above 1, an error message appears from the SOLCEL file
and the simulation is stopped.
[image: image.png]
[image: image.png]

Please can you also advise a work around this error message?

Thanks again
Good day,
Regards,
Janeet


On Mon, Jul 27, 2020 at 2:39 PM janeet anand <jangun16 at gmail.com> wrote:

> Thank you for your prompt response David.
>
> Currently working on Trnsys 16. Please could you guide me on the way to
> update the proforma? I tried updating the variable list and saving the
> component  as per screenshot below.
> [image: image.png]
>
> However still not able to insert a value greater than 1 in the studio
> environment. Is something to be done differently to the proforma?
>
> Have noticed 1 more thing with the model : At times of zero radiation and
> pump working the thermal energy is negative? I am interpreting it to be
> that at night times energy is lost from the fluid to the surroundings.
> However the same is not the case of the pure thermal collectors. Please
> could you explain this behavior?
>
> Thanks again.
>
> Regards,
> Janeet
>
>
>
> On Tue, Jul 28, 2020 at 2:21 AM David BRADLEY <d.bradley at tess-inc.com>
> wrote:
>
>> Janeet,
>>
>>  Your first two questions are things that have been fixed in the most
>> recent version of TRNSYS. I am not sure when they were fixed but I think
>> they have been fixed for awhile. Which version of Trnsys are you using? If
>> it is an older version, you can fix them by modifying the proformas
>> yourself. The errors are in the proformas and not in the code.
>>
>>  As for your third question, you'll need to send that to your
>> distributor. If you aren't sure who to contact, send me a direct email and
>> I will point you in the correct direction.
>>
>> kind regards,
>>
>>  David
>>
>>
>> On 07/27/2020 06:58, janeet anand via TRNSYS-users wrote:
>>
>> Dear experts,
>>
>> I am trying to simulate a parabolic trough concentrating collector using
>> the type 50e-mode 8. Have included the defualt SOLCEL data file.
>>
>> Had a few queries:
>> 1. Parameter 3 - ratio of aperture to absorber area - max allowable value
>> is 1 whereas the concentration ratio of 55 is to be simulated. Please can
>> you advise a solution to this.
>> 2. Input 4 - Incident radiation is required in KJ/hr or KJ/hr/m2?
>> 3. Input 7 - Voltage applied to array - anything above 2V gives
>> unrealistic output.
>>
>> Thank you for your time.
>>
>> Regards,
>> Janeet
>>
>>
>> _______________________________________________
>> 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
>>
>>
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