[TRNSYS-users] Concentrating PV-Thermal type 50

[janeet anand]

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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