[Equest-users] [Bldg-sim] Latest eQUEST & DOE-2.2 posted on the EPACT (tax credit) Qualified Software list

[Nick Caton]

I'd like to echo this curiosity...

 

I had the impression up to this point that the current version of eQuest
can effectively model a photocell, using the defined vector
placement/orientation.  

 

Here's an applicable entry in the help files that supports this notion:

LIGHT-REF-POINT1, LIGHT-REF-POINT2

Takes a list of three values that gives the x, y, and z coordinates (in
the space coordinate system) of the reference points at which daylight
illuminance levels are to be calculated. If DAYLIGHTING = YES, then
LIGHT-REF-POINT1 must be specified. If you want to divide a thermal zone
installed lighting kW into two independently-controlled daylighting
zones, then LIGHT-REF-POINT2 should also be specified. It is assumed
that the photocells that control the electric lighting system respond to
the light levels at the specified reference points.

Should we not be thinking of these vectors as placement criteria for the
a photocell controlling the daylighting controls?

 

 

 

NICK CATON, E.I.T.

PROJECT ENGINEER

25501 west valley parkway

olathe ks 66061

direct 913 344.0036

fax 913 345.0617

Check out our new web-site @ www.smithboucher.com 

 

-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Paul Riemer
Sent: Wednesday, October 28, 2009 2:28 PM
To: 'Scott Criswell'; equest-users at lists.onebuilding.org;
bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Latest eQUEST & DOE-2.2 posted on the EPACT (tax
credit) Qualified Software list

 

Thanks but can you shed some light on the "... cannot model photocells"
but can model daylighting in sidelighting and skylighting
configurations.

 

 

-----Original Message-----

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Scott
Criswell

Sent: Wednesday, October 28, 2009 2:04 PM

To: equest-users at lists.onebuilding.org; bldg-sim at lists.onebuilding.org

Subject: [Bldg-sim] Latest eQUEST & DOE-2.2 posted on the EPACT (tax
credit) Qualified Software list

 

http://www1.eere.energy.gov/buildings/qualified_software.html

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