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Cannot find lighting and exterior equipment assigned in OS

asked 2018-05-31 19:25:39 -0500

katsuya.obara's avatar

updated 2018-06-02 03:50:22 -0500

I am using OS v2.4.
I only define two types of electric equipment definition using Watts Per Space Floor Area as shown below image.
However, when I look at the idf file exported from OS, I saw other definition is included using Design Level (I put one of the example below). I want to delete these definition in OS. But cannot find anywhere. Does anyone know where these are defined? Same situation for Lighting also.
image description

    Lights 22,               !- Name
    28F_PlantRm1,            !- Zone or ZoneList Name
    All On,                  !- Schedule Name
    LightingLevel,           !- Design Level Calculation Method
    98.3999997801983,        !- Lighting Level {W}
    ,                        !- Watts per Zone Floor Area {W/m2}
    ,                        !- Watts per Person {W/person}
    ,                        !- Return Air Fraction
    ,                        !- Fraction Radiant
    ,                        !- Fraction Visible
    ;                        !- Fraction Replaceable

    Electric Equipment 10,   !- Name
    28F_PlantRm1,            !- Zone or ZoneList Name
    All On,                  !- Schedule Name
    EquipmentLevel,          !- Design Level Calculation Method
    196.799999560397,        !- Design Level {W}
    ,                        !- Watts per Zone Floor Area {W/m2}
    ,                        !- Watts per Person {W/person}
    ,                        !- Fraction Latent
    ,                        !- Fraction Radiant
    ;                        !- Fraction Lost
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@katsuya.obara Can you list the "other definitions" you get in the idf or better post a link to the OS model?

Avi's avatar Avi  ( 2018-06-01 08:10:42 -0500 )edit

@Avi I have added ElectricEquipment also. Is this what you expect me to do? I cannot post a like to OS model since this is the model for on going project.

katsuya.obara's avatar katsuya.obara  ( 2018-06-02 03:51:32 -0500 )edit

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answered 2018-06-04 07:50:13 -0500

This is automatically done by OpenStudio during forward translation when you have more than one space in the same thermal zone.

It combines the Spaces into a single thermal zone, and when doing this, it converts the various potential Lights (and LightsDefinition) objects into a given lighthing level (absolute, in W, allows to sum two or more LightsDefinition that could have different lighting units).


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Asked: 2018-05-31 19:25:39 -0500

Seen: 125 times

Last updated: Jun 04 '18