[Equest-users] How we can change interior floor reflectivity of the building model in the eQuest?

[Keith Swartz]

Nimesh,

I misunderstood your question. I believe you are looking for the interior reflectivity instead of the exterior reflectivity (absorptivity), which is shown in your screenshot.

In the Building Shell module double-click on the desired floor surface. If it's on the ground floor, click on the "Daylighting - Solar" tab. There you will find "Inside Visible Reflectance" in the top field.

[cid:image003.png at 01CDA78B.0B1FF970]

If it's on a higher floor, click on the "Surface Properties" tab, where you will find "Inside Visible Reflectance" in the middle field.

[cid:image004.png at 01CDA78B.8FB97080]

Keith Swartz, PE, LEED AP
Senior Energy Engineer | Energy Center of Wisconsin | Madison.Chicago.Minneapolis
608.210.7123 | www.ecw.org<http://www.ecw.org/>

From: Keith Swartz
Sent: Wednesday, October 10, 2012 3:39 PM
To: 'nimesh.prajapati'; equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] How we can change interior floor reflectivity of the building model in the eQuest?

Nimesh,

For opaque surfaces the absorptivity is 1 - reflectivity.

For transparent objects, the incoming light is partially reflected, partially absorbed, and partially transmitted through. The total for each of those equals the whole...reflectivity + absorptivity + transmissivity = 1. For opaque objects transmissivity is zero, so you get absorptivity = 1 - reflectivity.

Keith Swartz, PE, LEED AP
Senior Energy Engineer | Energy Center of Wisconsin | Madison.Chicago.Minneapolis
608.210.7123 | www.ecw.org<http://www.ecw.org/>

From: nimesh.prajapati [mailto:nimesh.prajapati at hitechcaddservices.com]
Sent: Tuesday, October 09, 2012 10:07 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] How we can change interior floor reflectivity of the building model in the eQuest?

Dear Friends,

I want to change interior floor reflectivity of the building model in the eQuest. To do this I am opting to detailed edit model and going to " EL1IFLr Construction " but there shows ext. colour ( abs).

So my question is - How we can change interior floor reflectivity of the building model in the eQuest?

[cid:image001.jpg at 01CDA78A.9642AD50]

Can you please guide me?

Thanks,

Nimesh Prajapati

(+91 9687133492)
HVAC Design Engineer & Energy Modeller
[cid:image002.jpg at 01CDA78A.9642AD50]
P Please consider the environment before printing this e-mail

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