[Equest-users] Blind controls in eQuest/ DOE2

Paul Diglio paul.diglio at sbcglobal.net
Thu Mar 3 07:49:47 PST 2011


Shuichi:

Don't you just love it when someone responds to your query and tells you to look 
it up!

Anyway, Did you define the window shade type? I recently did a project and my 
BDL input looks like the below:


*19094* "E6 North Win (G.E1.E3.W1)" = WINDOW
     *19095*    GLASS-TYPE       = "Resto & Retail Glass"
     *19096*    SHADING-SCHEDULE = "Wind Shading Sch"
     *19097*    FRAME-WIDTH      = 0.13
     *19098*    X                = 4.43
     *19099*    Y                = 0
     *19100*    HEIGHT           = 8
     *19101*    WIDTH            = 13
     *19102*    WIN-SHADE-TYPE   = MOVABLE-INTERIOR
     *19103*    FRAME-CONDUCT    = 1.8
     *19104*    ..
You have some other variables such as fin sizes.  Is the Win-Shade-Type defined 
in your BDL file?  Notice that the Shading-Schedule is right after the 
Glass-Type.

Paul Diglio




________________________________
From: Carol Gardner <cmg750 at gmail.com>
To: Shuichi Hendrickson <Shuichi.Hendrickson at erm.com>
Cc: "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org>; 
"bldg-sim at lists.onebuilding.org" <bldg-sim at lists.onebuilding.org>
Sent: Thu, March 3, 2011 10:21:39 AM
Subject: Re: [Equest-users] Blind controls in eQuest/ DOE2

Hi Shuichi,

I have not actively used this area of eQUEST, but I can pretty much guarantee 
that there will not be a schedule ever in eQUEST that is just called "SCHEDULE". 
The reason for that is that there are just too many schedules in eQUEST for any 
one of them to claim the glorified name of "SCHEDULE". That coupled with the 
fact that schedules are also, of necessity, split into DAY-SCHEDULE, 
WEEK-SCHEDULE, AND ANNUAL-SCHEDULE, you can see that when you find yourself 
typing simply "SCHEDULE" after your command an alarm should go off in your head 
that says something like "Oh, oh, I'm putting some nonsense into eQUEST that may 
cause the program to go off in some sort of GI/GO loop, I guess I'd better 
research the topic a bit more."

You sound like a user of some experience so I will just encourage you to dig a 
little deeper, keeping in mind the schedule structure in eQUEST and the use of 
the Building Description Language.

Cheers,

Carol


On Thu, Mar 3, 2011 at 2:18 AM, Shuichi Hendrickson 
<Shuichi.Hendrickson at erm.com> wrote:

Hello all,
> 
>I am attempting to model horizontal blind controls in eQuest / DOE2 in 
>conjunction with daylight dimming controls for lighting in a high rise office  
>tower using eQuest 3.64. 
>
> 
>In the past I have generally modelled windows using simplified glass type 
>definitions or import from WINDOW 5, but this time around I’m using the  window 
>layers commands as this allows controlled horizontal blinds to be simulated (at 
>least in theory).  The blind control system is controlled by a sun tracking 
>system located on the roof of the building. The designer has supplied me with 
>detailed scheduled  hourly schedules of the blind slat angle per façade 
>orientation. 
>
> 
>My understanding of the blind control capability in eQuest/ DOE2 is that blinds 
>can be controlled using a SCHEDULE(s) of the type FRACTION for the  window 
>coverage and slat angle respectively. As such, I have developed two schedules, 
>1) for lowering and raising of the blinds [ window coverage] and 2) blind slat 
>angle adjustment.
> 
> 
> 
>My problem is I’m getting an error (typical eQuest nonsense) stating  
> 
> 
>BDL error: Error in blind control: Adjustment type SCHEDULE for BLIND should be 
>SCHEDULE
> 
> 
>I don’t see what the error is.  I have pasted the BDL below
> 
>    *1142 * "Window 71" = WINDOW
>     *1143 *    GLASS-TYPE       = "GL7"
>     *1144 *    WIN-SPEC-METHOD  = LAYERS-INPUT
>     *1145 *    FRAME-WIDTH      = 0
>     *1146 *    X                = 31.5
>     *1147 *    Y                = {parameter("Window sill ht")}
>     *1148 *    HEIGHT           = {parameter("Window ht")}
>     *1149 *    WIDTH            = 5.9
>     *1150 *    LEFT-FIN-D       = 1.1
>     *1151 *    RIGHT-FIN-D      = 1.1
>     *1152 *    FRAME-CONDUCT    = 2.781
>     *1153 *    WINDOW-LAYERS    = ( "GL7layer", "Air-6.3mm", "Metal-1in-Lt" )
>     *1154 *    SLAT-SCHEDULE    = "E blind slat annual"
>     *1155 *    SLAT-ADJ-TYPE    = SCHEDULE
>     *1156 *    BLIND-SCHEDULE   = "E blind deploy annual"
>     *1157 *    BLIND-ADJ-TYPE   = SCHEDULE
>     *1158 *    ..
>*ERROR****************************************************************************************
>
>*ERROR****************************************************************************************
>
> 
> 
>The DOE2 documentation is sparse on this subject and I’m basically chasing my 
>tail on this. If anyone out there has successfully modelled blind controls and 
>has suggestions  or has an alternative way of modelling automatic horizontal 
>blinds with daylight light control dimming, I would be very grateful.
> 
> 
> 
>Thank in advance,
> 
> 
>Shuichi Hendrickson
>Environmental Engineer, LEED AP
>
>ERM Japan
>The Landmark Tower 
>Yokohama 19F
>2-2-1-1, Minatomirai, Nishi-ku
>Yokohama, 220-8119, Japan
>
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-- 
Carol Gardner PE
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