This is the next level in eplus expertise...welcome to the club.
In my opinion, using the waterheater:mixed object as a plate-water-water heatexchanger is the easiest methode. The low-temp loop then is supplied by this tank.
The concept is that the tank is a user (demand side) on the boiler demandside loop, but at the same time a source (source side) for the low-temp loop.
Try get this to work with a simple 2 zone model, before expanding to the real building model.
Goodluck.
Jean Marais
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "FrancescoP" <direzionecontraria@...> wrote:
>
> I have posted an image from the design drawings of the plant that I'm modelling: http://imageshack.us/a/img585/41/hotwaterloop.jpg
> In the plat there are both water radiators and heated floors. The supply temperature of the heated floors is lower than the supply temperature of the water radiator, although the boiler is the same. In fact, the heated floors have a specific secondary loop with water recirculation. What is the best solution to model such a configuration?
> I start modelling in DesignBuilder and then I develop the model in EnergyPlus.
> With Regards
> Francesco Passerini
>
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