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



May be I found the reason of missing dropdown control type ... I am still using EP 6.0 instead of the latest version. haha ... anyway, thx for your help ~~ 

Toby Cheung

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Vaibhav Jain <vaibhav.energyarchitect@...> wrote:
>
> You're welcome. In the ZoneHVAC:IdealLoadsAirSystem you will find dropdown
> menus for humidification and dehumidification control type, there you have
> to select humidistat. I/O reference explains the connection.
> 
> Vaibhav Jain
> www.vaibhavjain.co
> 
> 
> 
> 
> On 14 September 2012 04:00, tobycheung00 <tobycheung00@...> 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
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > >
> >
> >  
> >
>




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