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[EnergyPlus_Support] Re: Help: Inverter AC modeling



Dear Mr. James V Dirkes

My simulation is running without errors and warnings. and temperatures i am getting are 16 to 20 in winter and around 30 in summer for annual simulation run whereas cooling set point is 23 C. 

 
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Jim Dirkes <jim@...> wrote:
>
> Dear Anant,
> If your energy simulation works without errors and the zone temperature is not very close to the setpoint, the cooling  (or heating) capacity may be too small for the zone.
> 
> James V Dirkes II, PE, BEMP, LEED AP
> www.buildingperformanceteam.com<http://www.buildingperformanceteam.com/>
> Energy Analysis, Commissioning & Training Services
> 1631 Acacia Drive, Grand Rapids, MI 49504 USA
> 616 450 8653
> 
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of energy.anant
> Sent: Friday, June 07, 2013 5:48 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] Re: Help: Inverter AC modeling
> 
> 
> 
> I am trying to model the inverter AC which is a Veritable refrigerant flow system. To achieve this i have used  following class objects Cooling coil: DX:VRF, HVAC Template: Terminal Unit : VRF, Air conditioner : VRF and a constant volume fan.
> 
> there is no  outdoor air system.
> 
> What i suspect is that the problem may be with cooling capacity curves though i am not sure that my approach of modeling  is currect (as i am a new user  of energy plus) i have got the capacity table of the system and created the performance curves as per the help documentation.  but i am confused about the cooling capacity curve function of flow fraction.
> 
> Hope i have elaborated my problem and will be able to get some help
> 
> Anant Joshi<http://www.linkedin.com/pub/anant-joshi/19/a91/686>
> 
> M Tech Energy Engg
> MNIT, Jaipur
> +91 9462216493
> 
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>, Jim Dirkes wrote:
> >
> > Dear energy modeler,
> > You have provided very little information and it is not possible to determine what is causing your problem! Please provide more details.
> >
> > James V Dirkes II, PE, BEMP, LEED AP
> > www.buildingperformanceteam.com<http://www.buildingperformanceteam.com>
> > Energy Analysis, Commissioning & Training Services
> > 1631 Acacia Drive, Grand Rapids, MI 49504 USA
> > 616 450 8653
> >
> > From: EnergyPlus_Support@xxxxxxxxxxxxxxx<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of energy.anant
> > Sent: Friday, June 07, 2013 12:28 AM
> > To: EnergyPlus_Support@xxxxxxxxxxxxxxx<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>
> > Subject: [EnergyPlus_Support] Help: Inverter AC modeling
> >
> >
> >
> > Hi
> >
> > I am trying to model the inverter split AC (Daikin FTKD50FVM inverter pair 1.5 tr capacity) using VRF class objects.
> >
> > Problem i am getting is that the zone average temperature report variable values are not equal to the set point temperature.
> >
> > can someone point me in the right direction of possible errors ...
> >
>




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