Re: [EnergyPlus_Support] outdoor air per occupant

Hi Eplus User,

The answer for your question maybe is here:

"This object allows for the outdoor air requirements to be defined in a common location for use

by other objects. This object may be referenced by name from other objects (e.g., VAV

terminal units) as required to identify an outdoor air quantity for use by that object. Note that a

zone name Is not included as an input to this zone outdoor air definition and the number of

people in a zone, zone floor area, and zone volume can only be determined after this object

has been referenced by another. A single zone outdoor air definition may be referenced by

multiple objects to specify that the same outdoor air requirements are used by those objects

or multiple zone outdoor air objects may be defined and referenced by other objects as

needed. If multiple zone outdoor air definitions are used, each outdoor air definition must

have a unique name"

Read the energyplus input ouput reference, it explains everything used by the code. For your simulation I can advise to use, zone airflow/zone ventilation design flow rate. The option that you use is calculated in a different way, that is your problem.

let me know if you have problems with that.

Good luck!

On 12 June 2013 21:30, Richard Raustad <RRaustad@xxxxxxxxxxxx> wrote:

Does that zone have a multiplier?

On 6/12/2013 2:21 PM, FCoelho wrote:
> Dear All,
>
> I believe this should have a simple answer, still I didn't got there yet.
>
> I'm reporting on :
> ZoneX :Zone Mechanical Ventilation Air Change Rate [ach](TimeStep)
> ZoneX : :People Number Of Occupants [](TimeStep)
>
> I have the outdoor air defined as Flow/Person at 0.01 m³ in the DesignSpecification outdoor air, and I'm using the ideal loads Air system referring to this.
>
> At a particular timestep I have 2.14 ACH which gives me around 0.205 m³/s (ZoneVolume=343.8091 m³) with 26.86 occupants. However I was expecting 0.01 m³/s * 26.86 occ. = 2.6 m³/s.
>
> What am I missing?
> Thank you all for any help provided.
>
>
>
>
> ------------------------------------

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Richard A. Raustad
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