[esp-r] Re: water tank

[Geissler Achim]

In addition to the below, I seem to remember that ESP-r was recently enhanced such that water filled zones are possible. So, the modeling could be along the simple lines of adding the water tank as a zone, filling it with water (instead of air) and somehow connect this to whatever "conditioning system" is planned on being used (I would expect the temperature of the water in the tank can be somehow influenced?). Although in terms of "heat storage" the "no insulation" concept is entirely unclear to me. What kind of climate zone are you considering?

Best
Achim


> -----Ursprüngliche Nachricht-----
> Von: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-
> bounces at lists.strath.ac.uk] Im Auftrag von Jon Hand
> Gesendet: Montag, 15. Oktober 2012 14:59
> An: Panos Rigos; esp-r at lists.strath.ac.uk
> Betreff: [esp-r] Re: water tank
> 
> 
> Another approach is to treat the water tank as a thermal zone within a room.
> The tank walls are made out of whatever the tanks really is made of and
> there is something like a ideal controller that keeps the inside of the tank at
> about the temperature that you expect the water to be.  The tank zone then
> exchanges heat with the room via the normal convection and radiation that
> exists in room surfaces.  Suggest that radiation view factors would be good to
> include in such an analysis.
> 
> Note that this kind of design might be a bit strange in the summer - a warm
> body in the room might cause discomfort for room occupants ;-)
> 
> -Jon Hand
> ________________________________________
> From: esp-r-bounces at lists.strath.ac.uk [esp-r-bounces at lists.strath.ac.uk]
> On Behalf Of Panos Rigos [panos.bandit at gmail.com]
> Sent: 15 October 2012 12:13
> To: esp-r at lists.strath.ac.uk
> Subject: [esp-r]  water tank
> 
> Dear all,
> 
> I am considering of using esp-r for modeling a water tank for heat storage.
> However, the tank will not be insulated from the zone(s) but it will be inside
> the zone as extra thermal mass. So, the storage tank won't provide any
> water to any terminal system, it will just exchange heat with the zone from
> its surfaces. Any ideas on how to model such a tank in esp-r, as well as any
> references to literature about modeling and simulating water as part of a
> zone's/building's thermal mass (i.e. water walls, solar design) will be
> appreciated.
> 
> Greetings,
> 
> Panos
> 
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