[TRNSYS-users] R: R: WSHP - heat pump with radiant panel

[Jacopo Valente]

[cid:image004.png at 01D881DF.DCE4C560]

Da: Jacopo Valente via TRNSYS-users<mailto:trnsys-users at lists.onebuilding.org>
Inviato: venerdì 17 giugno 2022 00:12
A: thornton at tess-inc.com<mailto:thornton at tess-inc.com>; TRNSYS users mailing list at OneBuilding.org<mailto:trnsys-users at lists.onebuilding.org>
Cc: Jacopo Valente<mailto:jacopovalente at live.it>
Oggetto: [TRNSYS-users] R: WSHP - heat pump with radiant panel

In my idea the thermostat controls the zone temperature of the type690 and gives the control signal to the heat pump.
I try to attach the image again.


[cid:image005.png at 01D881DF.DCE4C560]

Da: thornton at tess-inc.com<mailto:thornton at tess-inc.com>
Inviato: giovedì 16 giugno 2022 23:53
A: TRNSYS users mailing list at OneBuilding.org<mailto:trnsys-users at lists.onebuilding.org>
Cc: Jacopo Valente<mailto:jacopovalente at live.it>
Oggetto: Re: [TRNSYS-users] WSHP - heat pump with radiant panel

On 2022-06-16 16:19, Jacopo Valente via TRNSYS-users wrote:

> Equa 3 is the input for the lumped capacitance and this input is the
> sum between the loads and the “top surface heat transfer” of
> radiant floor. However i don’t understand why my system doesn’t
> work: it seams the pump doesn’t exchange and the output temperature
> remains constant.

Without seeing your project my first guess is that you don't have
anything turning the pumps on; the thermostat is only connected to the
heat pump.

Beyond that, PLEASE add some pipes between the components and make sure
you are operating at reasonable time steps - 5 minutes or so.

Jeff

----
Jeff Thornton
President
Thermal Energy System Specialists (TESS)
3 N. Pinckney Street - Suite 202
Madison WI 53703
(608) 274-2577
www.tess-inc.com<http://www.tess-inc.com>


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