RE: [EnergyPlus_Support] Re: Partially opened windows modulated by a schedule

Had you try with the ventilation control mode ? temp, enthalpy, constant, adaptive model????

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: vaibhav.energyarchitect@xxxxxxxxx
Date: Mon, 2 Jul 2012 08:49:34 +0200
Subject: Re: [EnergyPlus_Support] Re: Partially opened windows modulated by a schedule

I have not tried it but I guess - if schedule type "continuous" is set as the venting availability schedule type, then, even at "Constant" ventilation control mode, the leakage should correspond to the fractional value given in the schedule. Have you tried in it this way also? And then, do you see any difference with the default discrete type ON/OFF schedule?

I found I/O isn't very direct in explaining this point. But if you want, you can try. Let us also know if it works! :)

Vaibhav Jain

www.vaibhavjain.co

On 2 July 2012 08:07, Jean marais <jeannieboef@xxxxxxxxx> wrote:

Correction. The temperature limits are schedules. You don't have to change them with EMS...they can stay set. I was looking at velocity modulation.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jean marais" <jeannieboef@...> wrote:
>
> Very good point. Venting availability is on/off regardless of whether you use "constant", "temperature" or other venting schemes. I don't think there is a way to change the opening area with a schedule directly. The only way that I can think of is to use the temperature scheme and change the temperature limits via EMS...I looked into this a while ago, due to another problem I was having. The problem was solved without imploying the EMS so I didn't have to complete it...VERY time consuming to do this at zone level.
>
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "k.rosemeier" <k.rosemeier@> wrote:
> >
> > It is my understanding that with ventilation control mode "Constant" in AirflowNetwork:MultiZone:Zone a venting availability schedule can only be on or off.
> > A way I found for altering the window opening fraction with control mode "Constant" is by changing the factor in AirflowNetwork:MultiZone:Surface for the LVO in question. Yet: while this seems to work with an on/off venting availability schedule, I cannot modulate the opening fraction with it.
> > Is there a way of modulating the opening fraction based on a schedule (regardless of temperatures and comfort parameters)?
> >
> > I want model: windows fully opened at certain times during the day, but only left ajar over night.
> >
>

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