Re: [EnergyPlus_Support] Re: Swimming Pool HVAC

[Derek Kite <dkite@xxxxxxx>]

It is a bit more complicated than that. The pool temperature, relative 
humidity of the air, temperature of the air, velocity of the moving air across 
the water surface, all conspire to effect the energy requirements for 
ventilation and heating the pool.

Dry cool moving air will increase evaporation, which will cool the pool water.

Add in the ventilation requirements due to chlorine treatment, any spray 
producing activities by the occupants and things like water slides, the 
possibility of inserting the heat from dehumidification into the pool water.

Does E+ have objects for surface water evaporation and it's effects on air and 
water temperature?

There are formulas in one of the ASHRAE manuals for this.

Derek

On Sunday 14 March 2010 02:26:18 pm Mário wrote:
> Well first of all I think the problem should be devided into two
> sub-problems: 1 - The thermal simulation of the actual swiming pool;
> 2 - The simulation of the HVAC systems neaded to ensure confort inside the
> actual zone.
> 
> In regards to the fist problem my idea is to use a tank heater obejct to
> simulate the actual pool inside a thermal zone since you can place one of
> these objects, inside a zone, and adjust the sensible energy loss to 
> those of a real one. Another aspect is that with a tank object you can
> garantie the integration of the energy neaded to heat the water an account
> for water loss, that would corresponde to a certan water consumption. That
> latent loss into the zone would have to be introduced into the zone with
> another object.
> 
> The second aspect of the probelm I don´t have a real idea about but there
> might be a change to use a HeatPump object...
> 
> Best regardes
> 
> MN
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "James V Dirkes II, PE" 
<jvd2pe@...> wrote:
> > It is an indoor swimming pool.  I would love to hear your ideas, since I
> > do not have very many ideas about how to model this type of HVAC system.
> > 
> > 
> > 
> > The Building Performance Team
> > James V. Dirkes II, P.E., LEED AP
> > 1631 Acacia Drive NW
> > Grand Rapids, MI 49504
> > 616 450 8653
> > 
> > 
> > 
> > From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Mário
> > Sent: Saturday, March 13, 2010 4:14 PM
> > To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > Subject: [EnergyPlus_Support] Re: Swimming Pool HVAC
> > 
> > 
> > 
> > 
> > 
> > 
> > Hello
> > 
> > I´am intressed in this idea are you thinking of an interior swiming pool?
> > I´ve got some ideas about this.
> > 
> > MN
> > 
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx
> > 
> > <mailto:EnergyPlus_Support%40yahoogroups.com> , "jvd2pe" <jvd2pe@> wrote:
> > > Dear E+ world,
> > > 
> > > Has anyone modeled one of the specialty pool HVAC air handlers which
> > > use
> > 
> > hot gas from the DX cooling coil for reheat?
> > 
> > > Willing to share your approach? or even better, a working .idf of the
> > > HVAC
> > 
> > components?
> 
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