Simple glazing system

chilu · Posts: 4

Hi all , has anyone managed to use the new Simple glazing system incorporated into E+ 4.0 with design builder? I have tried a couple of times but it doesnt seem to work. Is there a version of DB that can work with the simple glazing function? I have been adding the code below to my idf as per the instructions in the E+ manual but to no avail.

WindowMaterial:SimpleGlazingSystem,
SimpleWindow:DOUBLE PANE WINDOW , !- Name
6.9 , !- U-Factor
0.81 , !- Solar Heat Gain Coefficient
0.812 ; !- Visible Transmittance

Andy Tindale · Posts: 2432 Location: Stroud

So you're replacing the glazing system generated by DesignBuilder with you own SimpleGlazingSystem defintion? That should work OK. There is a restriction that the simple glazing systems don't work with window shading devices (diffusing blinds or slats). Is that perhaps the cause? What error messages do you get?

Also FYI, we're planning to implement SimpleGlazingSystem within the DB interface soon. It would certainly help if we can resolve your problem first though to give us confidence that it will work.

Andy

chilu · Posts: 4

Hi , thanks for the quick response. I replaced the lines that start with the lines below with the code i posted earlier. I think the problem is that i am thinking of this too simplistically. I only replaced the lines that had to do with windowmaterial and there were only two of these. Is this enough to define the window type for the whole model? Have also posted some of the error messages i got and it seems that DB doesnt pick up on the new window definition?

WindowMaterial:Glazing,
100, ! Name
SpectralAverage, ! Optical Data Type

** Severe ** Did not find matching material for Construction 1001, missing material = 10003
missing material = 100
** Severe ** Nominal U is zero, for construction=1001
** Severe ** Nominal U is zero, for construction=1002
** Severe ** Nominal U is zero, for construction=1003
** Severe ** FenestrationSurface:Detailed="P_860158_2_0_0_4_0_WIN" has an opaque surface construction; it should have a window construction.
** Severe ** FenestrationSurface:Detailed="P_860194_30_0_0_4_0_WIN_10056" has an opaque surface construction; it should have a window construction.

Andy Tindale · Posts: 2432 Location: Stroud

You'll need to add your new SimpleGlazingSystem and, in the appropriate glazing construction data, replace the multiple references to the WindowMaterial:Glazing with a single reference to the SimpleGlazingSystem data.

Please feel free to post the full idf file that doesn't run and I'll take a look.

Andy

chilu · Posts: 4

The idf file is 14 MB do you have an email add i could send it to ? Attaching large documents is easier from my email server.

The windowmaterial:glazing command only appears twice in the original IDF. It does make reference to constructions 10010 and 100 , should i replace all instances of 10010 and 100 with

SimpleWindow:DOUBLE PANE WINDOW , !- Name

WindowMaterial:Glazing,
10010, ! Name
SpectralAverage, ! Optical Data Type

WindowMaterial:Glazing,
100, ! Name

Andy Tindale · Posts: 2432 Location: Stroud

The glazing constructions should make reference to the windowmaterial:glazing data in the idf data generated by DB. In your changes the glazing construction should instead make reference to a single SimpleGlazingSystem object. You can send the idf data to andy at designbuilder.com but I suggest zipping it first.

Andy

Andy Tindale · Posts: 2432 Location: Stroud

Just to let you know that the current beta version now supports simple glazing including shading.

Andy

chilu · Posts: 4

Thanks Andy , good to know.

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