[TRNSYS-users] Type 4c

[Hadi Tannous]

Thanks for the prompt response.
My solar panel is connected to the hot side of the tank which is then
connected to the load. I tried simulating the tank with 2 nodes and 10
nodes (please see attached) but in both cases, the tank is always providing
the water to the load at the setpoint temperature of 40 C (purple line)
even when the temperature coming from the solar system (red line) is higher.
[image: image.png]
[image: image.png]

Am I doing something wrong?

Thanks,

Hadi

On Sat, Apr 8, 2023 at 3:23 PM Jeff Thornton <thornton at tess-inc.com> wrote:

> Hadi,
>
> If you have stratification enabled in your storage tank (multiple nodes),
> and your hot water from solar is going to the top of the tank, and your
> water that is going to the load is exiting from the top of the tank, then
> this will happen naturally.  If you want the solar hot water to go directly
> to the load if it’s hot enough then you’ll need to introduce a series of
> diverters and mixers, along with appropriate controls, to make that happen.
>
> Jeff/TESS
>
> Sent from my iPhone
>
> > On Apr 8, 2023, at 8:37 AM, Hadi Tannous via TRNSYS-users <
> trnsys-users at lists.onebuilding.org> wrote:
> >
> > 
> > Hi
> >
> > I am using water tank type 4c for a solar system. The tank is always
> providing water at the setpoint temperature even when the solar system is
> providing water at a higher temperature. How can I make the tank provide
> the water at a temperature higher than the setpoint temperature when that
> is achieved by the solar system?
> >
> > Looking forward to hearing from you
> >
> >
> > Kind regards,
> > Hadi
> > _______________________________________________
> > TRNSYS-users mailing list
> > TRNSYS-users at lists.onebuilding.org
> > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>
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