[EnergyPlus_Support] Re: Constant Air Volume with Heat Recovery?

["anarui.oliveira" <anarui.oliveira@xxxxxxxxx>]

Thank you both.

Can you help me understand how the setpoint managers (don't mention 
control nodes nor temperature setpoints) relate to the controllers 
and which setpoints these objects are actually referring to?

Also for the outside air controllers, to which setpoints they are 
referring? If I want to force constant outside airflow, can I delete 
these objects?

Where can I define that the heat exchanger should be bypassed if 
there is no advantage in that heat exchange, given the outside an 
return air temperatures?

Thanks again,
Ana.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Fred Buhl <wfbuhl@...> 
wrote:
>
> Thanks Richard; that's a good one to look at also.
> 
> Fred
> 
> Richard Raustad wrote:
> > Try 5ZoneWaterSystems as an example. You would have a Primary Air 
Loop 
> > for each zone and would control the coils differently. Use the 
set point 
> > managers for single zone cooling (control node is outlet node of 
chilled 
> > water coil) and single zone heating (control node is outlet node 
of hot 
> > water coil) to control the air loop water coils. You will not 
need the 
> > reheat coils shown in this example. You could add heat recovery 
to the 
> > outside air system for each primary air loop.
> >
> > anarui.oliveira wrote:
> >   
> >> Thanks.
> >> I've been looking at those unitary systems, but do they really 
allow
> >> me to replace the coils? They show up as necessary inputs and as
> >> those specific types of coils in the definition of unitary 
equipments?
> >> Ana.
> >>
> >> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx 
> >> <mailto:EnergyPlus_Support%40yahoogroups.com>, Fred Buhl 
<wfbuhl@>
> >> wrote:
> >>     
> >>> It sounds sort of like a single zone system - there's examples 
of
> >>> packaged single zone systems
> >>> (for instance SmOffPSZ). You'd have to repalce the DX and Gas 
coils
> >>>       
> >> with
> >>     
> >>> chilled and hot water
> >>> coils. And add heat recovery.
> >>>
> >>> Fred Buhl
> >>>
> >>> anarui.oliveira wrote:
> >>>       
> >>>> Hello, everyone.
> >>>>
> >>>> I can't seem to find a model in E+ that corresponds to:
> >>>> - a dedicated AHU (with heat recovery) serving only one zone,
> >>>> - with constant volumetric air flow (always 100% outside air)
> >>>> - using a chilled water loop and a hot water loop for air
> >>>>         
> >> conditioning
> >>     
> >>>> - where the zone temperature control is done directly and
> >>>>         
> >> uniquely by
> >>     
> >>>> turning the coils on/off at the System level (AHU), rather then
> >>>> changing the air flow or doing reheat/recool at zone level.
> >>>>
> >>>> Can I include Heat Recovery in any HVAC objects, other than the
> >>>>         
> >> system
> >>     
> >>>> level AHUs, to solve this issue with a zone level equipment or
> >>>>         
> >> other
> >>     
> >>>> simplification?
> >>>>
> >>>> All ideas are welcome.
> >>>> Regards,
> >>>> Ana Rui.
> >>>>
> >>>>
> >>>> ------------------------------------
> >>>>
> >>>> The primary EnergyPlus web site is found at:
> >>>> http://www.energyplus.gov <http://www.energyplus.gov>
> >>>>
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> >>>>         
> >> <http://groups.yahoo.com/group/EnergyPlus_Support/>
> >>     
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> >>>>         
> >> appropriate folder in the Files area of the Support Web Site.
> >>     
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> >>>>         
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> >>     
> >>>> Yahoo! Groups Links
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>         
> >>  
> >>     
> >
> >   
> 
> 
> [Non-text portions of this message have been removed]
>



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