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[EnergyPlus_Support] Re: zone air humidity ratio



I think that's the reason for the result of my simulation. Thank you very much.

Often people say, for the same comfort the indoor air by an air system is dryer than a radiant system.But according to the result of the simulation, the influrence of the people is more than the indoor air temperature. Is this result reliable?

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jean marais" <jeannieboef@...> wrote:
>
> The water vapout that the people give off into the room is dependant no the room temperature and humidity (air vapour pressure). I.e. you sweat more when it is warm and humid than when it is warm and dry.
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "amyquartette" <amyquartette@> wrote:
> >
> > I didn't specify a latent load fraction in the otherequipment.
> > 
> > The setpoint of the room is actually the PMV and the sensible heat fraction of the people is autocalculate, but the activity and number of people are the same. You mean the humidity by people changes?
> > 
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jean marais" <jeannieboef@> wrote:
> > >
> > > Maybe this helps:
> > > "Cautionary Note: The Ideal Loads Air System component does not control zone humidity levels. The Ideal Loads Air System component total cooling load is simply the enthalpy change between the mixed air condition (return air plus outdoor air, if specified) and the user-specified supply air condition for the current load. The latent load is the total load less the sensible load and may be positive or negative."
> > > 
> > > The air that recirculates should simply be adjusted to the set absolute humidity values that are constant and enter the zone.
> > > 
> > > Did you specify a latent load fraction in the otherequipment object?
> > > Are the room setpoints the same? They may effect the humidity given off by the people object.
> > >
> >
>




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