[Equest-users] Help needed regarding results.

Thu May 12 15:04:44 PDT 2016

A few notes:

1.       You didn’t provide the weather file, but substituting a public TMY3 in Wisconsin I could observe an expected shift in space lighting after halving your window heights.  It’s possible something is up with your weather file.

2.       Be aware your wizard WWR % inputs don’t have any effect once you’ve initiated custom window placements.  If you intend to “step back” to a place where those % inputs are leveraged you might want to just tweak your zone mapping (see the next point). 

3.       Recognizing the building footprint may be purposefully arbitrary, be aware the highlighted zone comprising the majority of your building footprint should probably be broken up to separate core vs. unique façade orientations to mimic a real-world daylight dimming control scheme.  That way you’ll end up with one sensor per façade:

------------------------------------------------------------------------------------------------------------------------------

Nick Caton, P.E.

  Senior Energy Engineer
  Energy and Sustainability Services
  North America Operations
  Schneider Electric

D  913.564.6361 
M  785.410.3317 
E  nicholas.caton at schneider-electric.com <mailto:nicholas.caton at schneider-electric.com> 
F  913.564.6380

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

From: Sitha mahalakshmi Pathuri [mailto:p.sithamahalakshmi at gmail.com] 
Sent: Thursday, May 12, 2016 3:43 PM
To: Nicholas Caton
Cc: Thulasi Ram; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Help needed regarding results.

Hello Nicholas,

I am here with the file.

On Fri, May 13, 2016 at 2:06 AM, <Nicholas.Caton at schneider-electric.com> wrote:

What you are proposing is in fact a very sophisticated/complex problem with a lot of interactive variables in play.

You may need to share the project file to help others on the list determine what is awry with your inputs, if you are still having issues.  If daylighting is applied to spaces with fenestration, you should certainly see a direct effect on lighting consumption and likely also indirect effects on fans/cooling/heating enduses as you vary WWR.

Recommended reading for a very similar study is attached.  WinOpt is a derivative of GenOpt specifically leveraging the energyplus engine, though note GenOpt is “engine-agnostic” and this study could have been alternatively performed with doe2/eQuest.  

I might also suggest that you might consider further selection of your “optimum” results to consider first-cost of construction (as a function of WWR and the various glazing fenestration unit selections), and also to consider recording the effect on (and perhaps constrain by a cap for) unmet heating/cooling hours that occur with various optimization variable combinations.

~Nick

------------------------------------------------------------------------------------------------------------------------------

Nick Caton, P.E.

  Senior Energy Engineer
  Energy and Sustainability Services
  North America Operations
  Schneider Electric

D  913.564.6361 
M  785.410.3317 
E  nicholas.caton at schneider-electric.com <mailto:nicholas.caton at schneider-electric.com> 
F  913.564.6380

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Thulasi Ram via Equest-users
Sent: Thursday, May 12, 2016 3:24 PM
To: Sitha mahalakshmi Pathuri
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Help needed regarding results.

In detailed edit model you can go to space-daylighting and then choose "yes" for daylighting. You can specify the schedule and control type over there as well. Hope it helps!

On Thu, May 12, 2016 at 3:18 PM, Sitha mahalakshmi Pathuri <p.sithamahalakshmi at gmail.com> wrote:

Hi ,

I have turned on the day-lighting controls in wizard 1  and retained the default data for day lighting in further wizards. But is there any other way to turn on day lighting for the zones? or any other wizards where i have to take care of  daylighting

On Fri, May 13, 2016 at 1:39 AM, Thulasi Ram <raminbit at gmail.com> wrote:

Hi,

Did you turn on the "daylighting controls" so that the model considers daylighting in calculating the lighting load? If you turn on the "Daylighting controls" (Wizard Screen 1/41)  , only then eQuest will model the daylighting savings. WWR can be set only in the wizard mode. I believe it requires little advanced knowledge to implement parametric runs for WWR in eQuest detailed mode. 

On Thu, May 12, 2016 at 2:33 PM, Sitha mahalakshmi Pathuri via Equest-users <equest-users at lists.onebuilding.org> wrote:

	Hello everyone,

	I have been doing an academic project where i am trying to find out the best percentage of facade glazing which results in optimal energy consumption in IT office building.

	Is there a possibility of doing parametric studies pertaining to change in facade glazing percentage or lets say WWR.

	I tried a floor plan with three different types of glasses and different percentages.

	But as i reduce the facade percentage from 100% to 30%  the energy consumption report says that there is reduction in energy consumption.but There is no difference in lighting loads . the only change in the report is for space cooling. The reduction in the glazing definitely results in increase in lighting loads in a fully conditioned office building.  

	This is not being projected in the results.could some one help me on how to proceed in this regard.

	Thanking you,

	P.Sitha

	Pursuing M.Arch

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-- 

Regards,
Thulasi Ram Khamma
M.Arch, LEED AP BD+C,
PhD Candidate in Architectural Technology,
School of Architecture,
University of Illinois at Urbana-Champaign

-- 

Regards,
Thulasi Ram Khamma
M.Arch, LEED AP BD+C,
PhD Candidate in Architectural Technology,
School of Architecture,
University of Illinois at Urbana-Champaign

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