[EnergyPlus_Support] Re: Question obout NREL OPENSTUDIO: Mechanical Ventilation in Object Inspector

["kontadakisantonios" <kontadakisantonios@xxxxxxxxx>]

Luis thanks for the response. 
The only problem to what you are suggesting is that the option ZoneVentilation:DesgnFlowRate isn't available in the OS Sketchup plug-in nor in the OS application. If i use the EnergyPlus IDF EDITOR then there is no problem because i know how to work in the default environment of e+ and create the entire model. I understand that the OS:DesignSpecification:OutdoorAir option is used when you are going to simulate also the HVAC system in the energy model (NREL OS environment),but if you are going to use the IdealLoads HVAC system for the simulation the ventilation flow rates requirements must be entered somehow. Still there must be a connection between the two OS:DesignSpecification:OutdoorAir & ZoneVentilation:DesgnFlowRate in order to simulate in the OS environment.
I have also posted the same question in the NREL OPENSTUDIO FORUM.
Antonis 

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Luis M. Blanes" <lmblanes@...> wrote:
>
> Hi Antonios
> 
> I had a problem just becaouse of that in one my models. I reccomend that you just use OS:DesignSpecification:OutdoorAir if you are simulating HVAC and ZoneVentilation:DesgnFlowRate if you are running IdealLoads simulations, but not both.
> 
> Luis
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "kontadakisantonios" <kontadakisantonios@> wrote:
> >
> > From Ver. 0.7 and after the ZoneVentilation:DesgnFlowRate has been replaced with the OS:DesignSpecification:OutdoorAir. Ever since i haven't been able to fully understand how it works. The first question are those two the same? If not what are the differences? I know that if i want to input the mechanical ventilation air flow requirements of a space in ENERGYPLUS i go to the ZoneVentilation:DesgnFlowRate and for example, if i choose in the design flow rate calculation method the FLOW/ZONE option i fill the design flow rate (m3/sec), where the total air volume requirements are the sum of the zone (m3/sec m2)and the people (m3/sec person). In the edit object of OS:DesignSpecification:OutdoorAir there is an Outdoor Air Method Tab where you choose Sum/Maximum and then depending on the selected method you fill the boxes below. Is the [Sum] the same as FLOW/ZONE? If yes by selecting and filling both boxes: Outdoor Air per person and Outdoor per Flow Area does the method summarizes both input values and thus having the mechanical ventilation air flow requirements for the space? Thank you in advance Antonis.
> >
>




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