Re: [TRNSYS-users] Type 4c

[Hadi Tannous <hadieliastannous@gmail.com>]

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.

Am I doing something wrong?

Thanks,

Hadi

On Sat, Apr 8, 2023 at 3:23 PM Jeff Thornton <thornton@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@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@lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org