Re: [EnergyPlus_Support] Re: Simplest way to control RH in a zone

Vaibhav Jain

www.vaibhavjain.co

On 14 September 2012 04:00, tobycheung00 <tobycheung00@xxxxxxxxxxx> wrote:

Thanks you Vaibhav,

Your method in point 3 inspiring me, which I have never try it before.
Yet, I cannot follow point 5.
How can I insert humidistat in "ZoneHVAC:IdealLoadsAirSystem" object?
Do you mean I shall input the humidity ratio by self-calculation ?

Anyway, I have learnt from you ~ many thanks !! :)

Toby Cheung

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Vaibhav Jain <vaibhav.energyarchitect@...> wrote:
>
> If you dont want to model the whole system then you can use the templates.
> I would suggest:
>
> 1. use HVACTemplate:Thermostat, HVACTemplate:Zone:IdealLoadsAirSystem to
> model a simple system in your building.
> 2. Run simulation
> 3. Rename the produced .expidf file to .idf
> 4. Now include ZoneControl:Humidistat
> 5. Insert this humidistat in ZoneHVAC:IdealLoadsAirSystem object (produced
> in the expanded file).
>
> Vaibhav Jain
> www.vaibhavjain.co
>
>
>
>
> On 13 September 2012 14:22, tobycheung00 <tobycheung00@...> wrote:
>
> > **

> >
> >
> > Thanks for your reply.
> >
> > Yes, I have found this object.
> > Yet, it seems work with a serious of components (such as heating coil,
> > humidifier, in/out nodem ... etc.) which I am not very familiar with.
> >
> > And I have tried the example files which related to RH control.
> > It seems include alot .... and not easy to understand by myself.
> >
> > Well, if I just want a zone with temp=25oC and RH=55% for all hours within
> > a year. Which kinds of components do I need to concern with ? Just very
> > simple setup and any types of AC system is ok for me ~~ Many thanks.
> >
> > Toby Cheung
> >
> >
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Vaibhav Jain
> > <vaibhav.energyarchitect@> wrote:
> > >
> > > Have you checked, ZoneControl:Humidistat object? You will understand its
> > > functioning from IO reference.
> > >
> > > Vaibhav Jain
> > > www.vaibhavjain.co
> > >
> > >
> > >
> > >
> > > On 13 September 2012 13:30, tobycheung00 <tobycheung00@> wrote:
> > >
> > > > **
> >
> > > >
> > > >
> > > > Dear All,
> > > >
> > > > Can anyone please suggest me the simplest (use minimum connected
> > > > equipment) way to control the relative humidity in a zone ?
> > > >
> > > > My condition is easy. I want to control the temperature and the
> > relative
> > > > humidity in a zone, and finally want to find out the hourly ventilation
> > > > load of increasing number of occupant(1~8) within a year, according to
> > > > hourly outdoor conditions change.
> > > >
> > > > Its easy to control the zone temperature and yield the ideal zone load.
> > > > Yet adding humidity control seems a lot more complicated...
> > > >
> > > > Could you please suggest which components must be added in order to
> > > > facilitate the Humidity control. Many thanks.
> > > >
> > > > Toby Cheung
> > > >
> > > >
> > > >
> > >
> >
> >
> >
>