[Bldg-sim] Energyplus - Availability Manager Hybrid Ventilation Control Status

Kaiyu Sun via Bldg-sim bldg-sim at lists.onebuilding.org
Wed Apr 12 17:21:18 PDT 2017

Hi Sriraj,

The EnergyPlus output results are the average values over the timestep. For
example, if the timestep is 10mins, and 5mins results 0 and another 5mins
results 1, then the average output would be 0.5.

Another thing you might want to be aware: If you select an output timestep
coarser than the simulation timestep, e.g. simulation timestep is 10min and
output timestep is 1hour, then it is more likely you will get those
decimals. Hope this could help!


Kaiyu Sun
Scientific Engineering Associate
Lawrence Berkeley Lab

On Wed, Apr 12, 2017 at 4:47 PM, Sriraj G via Bldg-sim <
bldg-sim at lists.onebuilding.org> wrote:

> As per the energyplus I/O reference, the output variable 'Availability
> Manager Hybrid Ventilation Control Status' reports three integer values:
> 0,1, and 2 denoting no hybrid ventilation control, whether natural
> ventilation is allowed, or not. However, the output result from a
> simulation shows the values range between 1 and 2 (1.1,1.858796296,
> 1.758333333, 1.716666667 etc.).
> Does it mean that there is a partial natural ventilation happening or
> denotes that there is a potential to naturally ventilate? I believe this
> should not be the case, as the output results has to just show a binary
> result in either 1 or 2. Could somebody please explain how this has to be
> understood?
> Thank you very much in advance.
> best regards,
> Sriraj
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