[Equest-users] Question on Energy consumption results

Mon Sep 24 13:09:52 PDT 2018

Assuming Floor 5 is EL3 Ground Flr, daylighting is working if I add it to EL3 SW Perim ML Spc (ML.SW1) and EL3 WNW Perim Spc (G.WNW2). Detailed Mode

Christopher R Jones, P.Eng.
T+ 1 416-644-0252

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From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Akshat Kabra via Equest-users
Sent: Monday, September 24, 2018 1:42 PM
To: Nicholas.Caton at schneider-electric.com; equest-users at onebuilding.org
Subject: Re: [Equest-users] Question on Energy consumption results

PFA Files-.inp & pd2

FYI- If I switch daylight off for shell component-Floor 5, the simulation runs otherwise it shows error.

I have switched on daylight for rest of the shell component to observe area light changes.

On Mon, Sep 24, 2018 at 11:00 PM Nicholas Caton <Nicholas.Caton at schneider-electric.com<mailto:Nicholas.Caton at schneider-electric.com>> wrote:
A quick reminder:  If you have progressed past the wizard mode, you’ll need to share both the .pd2 and the .inp for others to be able to open your model and see what’s on your screen ;-).

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Nick Caton, P.E., BEMP
  Senior Energy Engineer
  Regional Energy Engineering Manager
  Energy and Sustainability Services
  Schneider Electric

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

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

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From: Akshat Kabra <akshatspin at gmail.com<mailto:akshatspin at gmail.com>>
Sent: Monday, September 24, 2018 9:38 AM
To: Nicholas Caton <Nicholas.Caton at schneider-electric.com<mailto:Nicholas.Caton at schneider-electric.com>>
Cc: The Energy Simulation Academy <info at simulate.energy<mailto:info at simulate.energy>>; equest-users at onebuilding.org<mailto:equest-users at onebuilding.org>
Subject: Re: [Equest-users] Question on Energy consumption results

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Hi,

I checked it for already defined glass library by comparing single and double glass unit with varying specs, the area light is not changing.

I have customised the windows and curtain wall required for the project and have customised glass specification depending on U value, SC, VLT.
Base case
U value- 1 Btu/h-ft2-F
SC-0.42
VLT-0.26

I need to check with DGU glass and overhangs what would be energy consumption.

When I switch on the  daylight control for all shell components, the simulation run says error.

I am attaching the file .
Please check by changing the SC and VLT, is the area light consumption changing?

Thanks

On Mon, Sep 24, 2018 at 7:44 PM Nicholas Caton <Nicholas.Caton at schneider-electric.com<mailto:Nicholas.Caton at schneider-electric.com>> wrote:
Hello!

If I had to make a guess, a relatively common issue I’ve uncovered would start with checking whether the glass being revised, before editing, is using the glass library specification method (i.e. your glass is defined via code like 2004).  In that scenario, you are permitted to add/define inputs used with the simplified method of defining glass like VIS-TRANS and GLASS-CONDUCT through parametric inputs, but they won’t “hook” and accomplish anything.  You’d need to swap your glass inputs over to simplified first, or else look up another library entry appropriate for your VLT switch and edit that assignment instead.

If this doesn’t cover it, there are a myriad of daylighting-related inputs which may throw off the expected behavior.  It would probably be most time-efficient for you to share a copy of the model files (pd2/inp) with the list, and to indicate the specific window(s) you are expecting to observe results by editing.  It would also in that context be helpful to know whether you used the wizards to help you set up the space daylighting inputs before toggling to “No” daylighting.

~Nick

Nick Caton, P.E., BEMP
  Senior Energy Engineer
  Regional Energy Engineering Manager
  Energy and Sustainability Services
  Schneider Electric

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

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

From: Equest-users <equest-users-bounces at lists.onebuilding.org<mailto:equest-users-bounces at lists.onebuilding.org>> On Behalf Of The Energy Simulation Academy via Equest-users
Sent: Sunday, September 23, 2018 10:20 AM
To: Akshat Kabra <akshatspin at gmail.com<mailto:akshatspin at gmail.com>>
Cc: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: Re: [Equest-users] Question on Energy consumption results

What's the VLT values thay you're using?
On Sun, Sep 23, 2018, 08:16 Akshat Kabra via Equest-users <equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>> wrote:
Hi,

I am modelling on Design Development wizard, I am changing VLT of glass , but there is no change in area lights consumption.
Why is it so ?

I have switched off daylight control.
When I switch on , the results show changes.

Regards

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