[Equest-users] Solar illuminance hourly data

Mon Nov 25 07:04:47 PST 2019

Yeah, Julien nailed it!

I’m not sure whether the custom hourly report variable options provide a direct means to see the calculated direct/reflected illuminance, before or after shading elements.  Might be in there somewhere but I didn’t see on first pass through the options.

That said, perhaps your needs would be satisfied with the LV-L report, which provides a pretty detailed breakdown regarding exterior illuminance measurements?  I think you need to enable daylighting for the space hosting the surface/window of interest.
[cid:image002.png at 01D5A36F.60184BC0]

Here are some options I did find within custom report hourly outputs for windows, which are more focused on solar radiation (total spectrum of solar energy, not just visible light).  There might be something specific to illuminance (fc/lux) elsewhere however such as for surfaces?
[cid:image003.png at 01D5A36F.60184BC0]

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From: Equest-users <equest-users-bounces at lists.onebuilding.org<mailto:equest-users-bounces at lists.onebuilding.org>> On Behalf Of Julien Marrec via Equest-users
Sent: Thursday, November 21, 2019 1:31 PM
To: Calvin Chu <cchu at brightpower.com<mailto:cchu at brightpower.com>>
Cc: Calvin Chu via Equest-users <equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>>
Subject: Re: [Equest-users] Solar illuminance hourly data

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These are about the daylight sensor in the zone it seems.
Energyplus has a few solar radiation rate variables specific to windows, not sure about eQuest.
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On Nov 21, 2019, at 15:30, Calvin Chu via Equest-users <equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>> wrote:
Hi Anil,

I think you can do that by specifying the following in the hourly reports. See the attached image:

[image.png]

Hope this helps,
Calvin

On Thu, Nov 21, 2019 at 8:29 AM Anil Jangid via Equest-users <equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>> wrote:
Dear folks,

Is there any way to get solar illuminance (Lux) hourly data on a glass. Software like energy plus, eQuest or any other.

Thanks in advance.

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