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[EnergyPlus_Support] Re: Schedule 10001 - Output Value is time shifted
I'm starting to suspect that there is something DST in the weatherfile that's doing this. I'm going to turn DST on in the run period and see what happens. I'm still not expecting my fan to drop off to zero though.
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad <RRaustad@...> wrote:
>
> I added this run period to your file to see if the time of day changes
> for winter and summer.
>
> RunPeriod,
> Kita2, !- Name
> 1, !- Begin Month
> 20, !- Begin Day of Month
> 1, !- End Month
> 26, !- End Day of Month
> UseWeatherFile, !- Day of Week for Start Day
> No, !- Use Weather File Holidays and Special Days
> No, !- Use Weather File Daylight Saving Period
> Yes, !- Apply Weekend Holiday Rule
> Yes, !- Use Weather File Rain Indicators
> Yes, !- Use Weather File Snow Indicators
> 1; !- Number of Times Runperiod to be Repeated
>
> For this run period, the schedule values are non-zero from 7:40 to
> 18:30, just like your schedule. For your "summer" run period, the
> schedule values are non-zero from 6:40 to 17:30. So there is still
> something referencing Daylight Savings Time.
>
> I have not found what that is yet.
>
> On 10/15/2010 8:42 AM, jeannieboef wrote:
> >
> > Yes. That's how I've checked when the schedule value becomes non-zero,
> > and this is the bit that I don't get. When I look at the day schedule
> > in the idf, I can't understand why the "Schedule Value" report
> > variable for schedule 10001 reports the first non-zero values so early
> > (06:30 I think...see eso) even on timestep reporting interval...the
> > first non-zero should be reported at 08:00:
> >
> > ! Profile: KiTa_Workingday_Profile
> > Schedule:Day:List, 10000 , Any number, No,
> > 30,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > .4,
> > .5,
> > .8,
> > 1,
> > .85,
> > .8,
> > .8,
> > .8,
> > .8,
> > .8,
> > .8,
> > 1,
> > .6,
> > .65,
> > .6,
> > .6,
> > .6,
> > .7,
> > .45,
> > .6,
> > .25,
> > .4,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0,
> > 0;
> >
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx
> > <mailto:EnergyPlus_Support%40yahoogroups.com>, Richard Raustad
> > <RRaustad@> wrote:
> > >
> > > Have you tried using the "Schedule Value" report variable and
> > > comparing this output to the people sensible heat gain and occupation
> > > outputs?
> > >
> > > On 10/15/2010 7:53 AM, jeannieboef wrote:
> > > >
> > > > Hi James.
> > > >
> > > > 1. I'm going to replace the "Always On" schedule with a "binarized
> > > > occupation schedule".
> > > >
> > > > (although I now know that if e+ expects a 1/0 schedule and sees a
> > > > fractional, for example occupation schedule, it will automatically
> > > > assume all non-zeros to be 1 and zeros to be zero, so I could use the
> > > > occupation schedule here)
> > > >
> > > > I wanted to maintain the abillity of the fan availibility to turn on
> > > > and off on schedule and when availible and on, deliver a constant
> > > > volume. It should cycle on and off to meet both the minimum air and
> > > > room loads as required during its availibillity on time.
> > > >
> > > > 2. Yes, this manager is not used, but I thought to keep it if it
> > > > became apparent that it is needed at a future stage. I will try and
> > > > delete this manager (which overides scheduled values as specified) as
> > > > it maybe suppressing ventilation during "darkness hours". Good
> > thinking.
> > > >
> > > > 3. The ODA controller is auto-sizing to the correct value (checked
> > > > it). More over I checked with this also manually set (no difference),
> > > > so that was not the problem. I don't want the master of the
> > > > auto-sizing to become irrelivant, as I'd rather adjust as little
> > > > inputs as nessesary, so that's why I left this on auto.
> > > >
> > > > Well spotted. Thanks for the input.
> > > >
> > > > Could you figure out why my PEOPLE sensible heat gains and occupation
> > > > seem to start earlier than the 10001 occupation schedule suggests?
> > > >
> > > > The day schedule is set up in 30min intervals. I have the feeling
> > > > something is interpolating backwards.
> > > >
> > > > Kind regards,
> > > >
> > > > jean.
> > > >
> > > > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx
> > <mailto:EnergyPlus_Support%40yahoogroups.com>
> > > > <mailto:EnergyPlus_Support%40yahoogroups.com>, "James V Dirkes II,
> > PE"
> > > > <jim@> wrote:
> > > > >
> > > > > Dear Jean,
> > > > >
> > > > >
> > > > >
> > > > > A quick review suggests that you look at:
> > > > >
> > > > >
> > > > >
> > > > > 1. You are using an On/Off fan. The fan uses an "Always on"
> > schedule,
> > > > > but the nature of this fan is to cycle on and off as needed for
> > building
> > > > > loads.
> > > > >
> > > > > 2. You are also using AvailabilityManager:NightCycle set for
> > > > > "StayOff". Normally this means that your fan will never operate at
> > > > night.
> > > > > I'm not sure what happens with an OnOff fan ., but you might get
> > rid
> > > > of this
> > > > > manager since it does not apply to your situation.
> > > > >
> > > > >
> > > > >
> > > > > 3. Finally, you are autosizing minimum outdoor air in the
> > > > > Controller:Outdoor Air. I'd be inclined to set the minimum at a
> > non-zero
> > > > > value or create a minimum fraction or schedule for outdoor air.
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > The Building Performance Team
> > > > > James V. Dirkes II, P.E., LEED AP
> > > > > 1631 Acacia Drive NW
> > > > > Grand Rapids, MI 49504
> > > > > 616 450 8653
> > > > >
> > > > >
> > > > >
> > > > > From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > <mailto:EnergyPlus_Support%40yahoogroups.com>
> > > > <mailto:EnergyPlus_Support%40yahoogroups.com>
> > > > > [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx
> > <mailto:EnergyPlus_Support%40yahoogroups.com>
> > > > <mailto:EnergyPlus_Support%40yahoogroups.com>] On Behalf Of
> > jeannieboef
> > > > > Sent: Friday, October 15, 2010 3:46 AM
> > > > > To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > <mailto:EnergyPlus_Support%40yahoogroups.com>
> > > > <mailto:EnergyPlus_Support%40yahoogroups.com>
> > > > > Subject: [EnergyPlus_Support] Re: Schedule 10001 - Output Value
> > is time
> > > > > shifted
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Thank you Dr. Li,
> > > > >
> > > > > You're right. The only reason the schedule is "any number" not
> > > > "fraction"
> > > > > and this complicated is because this is the output from
> > > > designbuilder. I use
> > > > > the graphics from designbuilder in my simulation report which
> > > > explain the
> > > > > schedule much nicer than the syntax of a Schedule:Compact
> > object. As
> > > > to the
> > > > > time shift...I'm still at a loss. I use xEsoView to check the
> > > > outputs in the
> > > > > eso file. Therefore I specified the Schedule Output Values for both
> > > > hourly
> > > > > and timestep. Looking at the timestep values I still don't under
> > > > stand why
> > > > > it doesn't start with the day schedule time.
> > > > >
> > > > > I've posted the idf in the user exchange area.
> > > > >
> > > > > My other problem is that the specified min ODA is not happening,
> > and
> > > > I can't
> > > > > figure out why (It should be constantly on night and day).
> > > > >
> > > > > Regards,
> > > > >
> > > > > Jean
> > > > >
> > > >
> > > >
> > >
> > > --
> > > Richard A. Raustad
> > > Senior Research Engineer
> > > Florida Solar Energy Center
> > > University of Central Florida
> > > 1679 Clearlake Road
> > > Cocoa, FL 32922-5703
> > > Phone: (321) 638-1454
> > > Fax: (321) 638-1439 or 1010
> > > Visit our web site at: http://www.fsec.ucf.edu
> > >
> > > UCF - From Promise to Prominence: Celebrating 40 Years
> > >
> >
> >
>
> --
> Richard A. Raustad
> Senior Research Engineer
> Florida Solar Energy Center
> University of Central Florida
> 1679 Clearlake Road
> Cocoa, FL 32922-5703
> Phone: (321) 638-1454
> Fax: (321) 638-1439 or 1010
> Visit our web site at: http://www.fsec.ucf.edu
>
> UCF - From Promise to Prominence: Celebrating 40 Years
>
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