Inclined "vertical" windows in LENI, LENICALC and XML files

 To handle windows which are neither vertical nor horizontal a variation has been added to the standard. Basically the inclined window is converted into a horizontal roof-light or a vertical window:

1. For roof slope angles larger or equal to 75° the EN 15193-1 model for vertical facade windows shall be used.
2. For slope angles smaller than 75° the EN 15193-1 model for roof lights shall be used after a geometric adaptation of the room height and the window size in the equivalent room.

 Here is an example of before and after for type 1, where the (slightly) sloped window is converted into a vertical window:

 Here is an example of before and after where the (very) sloped window is converted into a roof- light:

Since these two variations are always connected to a wall in the building they have been implemented in LENICALC as variations on the vertical window. Here they both are in the interface and XML of the project:

In the XML a new branch SlopeParamsV (shown above) is added into the Window branch in the case where the VertWinType is 1 or 2. (0 is the normal vertical window.)

 In LeniCalc the AD areas of the different types is shown in the interface:

Roof lights in the LENICALC XML format

 Roof lights can only be placed on the top floor of a building and are always aligned with the x or y axes of the world. Here is an example of two roof lights and their daylight areas:

In the XML the roof light in lower left looks like this:

<RoofLightList>
  <RoofLight id="1" type="FlatRoofLight" orient="0">
    <XOrig>1.5000000</XOrig>
    <YOrig>1.5000000</YOrig>
    <XLength>4.0000000</XLength>
    <YWidth>1.0000000</YWidth>
    <TauD65Sna>0.8500000</TauD65Sna>
    <TauD65Sa>0.5000000</TauD65Sa>
    <kObl1>0.9000000</kObl1>
    <kObl2>0.9000000</kObl2>
    <kObl3>0.8500000</kObl3>
    <hw>1.0000000</hw>
    <hg>1.0000000</hg>
    <GammaF>0.0000000</GammaF>
    <GammaW>90.0000000</GammaW>
    <hs>0.0000000</hs>
    <LumList/>
  </RoofLight>
</RoofLightList>
 

Note that LumList is an empty branch, which means no luminaires are controlled by the light from this rooflight

 

LENI XML files which contain results of calculations

 In this article I described the structure and details of a LENI XML file. It is possible to have a LENI XML file with actual calculation results embedded in them. There are results for the building, its floors and its rooms.

Here is a typical result branch:

    <Results>
        <InstalledPower>6578.0000000</InstalledPower>
        <Wl>12348.6000000</Wl>
        <Wp>9960.2952000</Wp>
        <Area>12968.2443205</Area>
        <LENIResult>1.7202710</LENIResult>
    </Results>

If this branch is at the top level of the XML file then this is the result of a calculation of a whole building, the LENI.

If it is inside a Floor branch then it is the LENIsub of that floor. And if it is inside a room branch it is a LENIsub of that room.

So <LENIResult> is a number which is either a LENI value or a LENIsub value. LENI always applies to a whole building. <LENIsub> applies to an individual floor or an individual room.

Note also that <InstalledPower> is not strictly directly used in the calculation, but is nice to have as extra information.

Here is an actual LENI project file with calculation results at all three levels (building, floor and room):

 

 

-

 

 

The structure of the LENI XML file

 A LENI XML file (with the extension LENI1XML) follows closely the actual structures of the building being analysed. Every LENI XML file represents a single building with maybe multiple floors. (This page is not a description of the details of the LENI calculation, but how the data required for the calculation is stored.)

First an overview of the file format:

It should be clear that a building contains a list of products and a list of floors. Every floor contains a list of rooms. And every room contains a list of zones.

Fields holding general data about the building

    <DominantBuildingType>Educational buildings</DominantBuildingType>

This field can have these values:

• Residential buildings
• Offices
• Educational buildings
• Hospitals
• Manufacturing factory
• Hotels
• Restaurants
• Wholesale and retail service
• Other

    <MF>0.8000000</MF>

MF is the default maintenance factor for the building. (Rooms have their own maintenance factor.)

    <Latitude>45.7000000</Latitude>
    <Longitude>9.1900000</Longitude>
 

 The geographical position of the building, in decimal degrees.

 

    <YearToBeBuilt>2050</YearToBeBuilt>
    <YearBuilt>0</YearBuilt>
   

One of these year fields must be 0 and the other must be a 4 digit year.

 

 <HdirHglob>0.3900000</HdirHglob>
 

 This is a value between 0 and 1 and is the ratio between direct illumination and global illumination

Products and LumTypeData.

Here is an example of a product section with two products defined:

<Products>
        <LumTypeData refid="123ABC">
            <Desc>ACME LUX 123ABC description</Desc>
            <TypeFlags>1</TypeFlags>
            <ProdConSys>1</ProdConSys>
            <MaxPow>100.0000000</MaxPow>
            <StandbyPow>0.0100000</StandbyPow>
            <ChargePow>0.0100000</ChargePow>
        </LumTypeData>
        <LumTypeData refid="ZILODABC">
            <Desc>ZILOF SUPER LED</Desc>
            <TypeFlags>1</TypeFlags>
            <ProdConSys>1</ProdConSys>
            <MaxPow>100.0000000</MaxPow>
            <StandbyPow>0.0100000</StandbyPow>
            <ChargePow>0.0100000</ChargePow>
        </LumTypeData>
    </Products>

The LumTypeData has a refid which is the reference id of the product. It must be unique within the XML file because it is used in the list of products in a zone.

 TypeFlags defines what sort of product it is. Here is an example of how they should be defined in a program which needs to read and write them:

ikLuminaireFlag = 1; // A normal luminaire
ikControlFlag = 2; // Some lighting control electronics
ikEmergencyFlag = 4; // An emergency illuminaire
ikAllFlags = ikLuminaireFlag | ikControlFlag | ikEmergencyFlag;
 

As you can see a single product can have any combination of the flags, including all of them.

ProdConSys is the product control system, and integer and can have a value from 0 to 2, with the following meanings:

0 = Daylight
1 = Occupancy
2 = Constant Illuminance Sensor

Then there are three real numbers relating  to the power of the luminaire. All of these need to be 0 or positive, but there are no other restrictions. Here is an example:

        <MaxPow>100.0000000</MaxPow>
        <StandbyPow>0.0100000</StandbyPow>
        <ChargePow>0.0100000</ChargePow>

The floor list and floors.

 Each floor in the floor list has three attributes. For an example of the attributes:

        <Floor floorname="FLOOR_001" hi="3.00" count="1">

floorname identifies the floor uniquely in the project. Note that the first floor listed is the lowest floor in the building.

hi is the height of the floor (from floor to ceiling), in meters.

count is how many times the floor is repeated in the building. This is so that identical floors, one on top of another, do not have to be repeated within the XML file.

A floor can have an atrium list, idea and XML explained here.

The room list and rooms

Each floor has a room list. Each room has attributes, here they all are listed with examples:

<Room roomname="ROOM_000"
      type="[Educational buildings]Classroom(Fa=0.25)"
      mf="0.700"
      hta="0.800"
      td="1800"
      tn="200">
 

roomname has to be unique within the floor, but not necessarily unique within the building.

type is a string which is a combination of the BuildingType and RoomType. It is like this because two different building types can contain the same room types with different Fa (absence factor) values. So the type string is:

[BuildingTypeInHere]RoomType(Fa=0.XX)

Fa must be between 0 and 1. Here is the complete list, remember to use the fa of the room, not of the building:

<BuildingType type="Residential buildings" fa="0.00" td="1820" tn="1680">
    <RoomType type="Living room" fa="0.30"/>
    <RoomType type="Bedroom" fa="0.40"/>
    <RoomType type="Room for children or retired persons" fa="0.30"/>
    <RoomType type="Dining room" fa="0.70"/>
    <RoomType type="Kitchen" fa="0.60"/>
    <RoomType type="Bathroom" fa="0.80"/>
    <RoomType type="Toilet" fa="0.90"/>
    <RoomType type="Entrance hall" fa="0.80"/>
    <RoomType type="Corridor, stairs" fa="0.70"/>
    <RoomType type="Storeroom" fa="0.90"/>
    <RoomType type="Cellar" fa="0.95"/>
    <RoomType type="Laundry" fa="0.98"/>
    <RoomType type="Larder" fa="0.98"/>
    <RoomType type="Workroom" fa="0.60"/>
    <RoomType type="Home workshop" fa="0.80"/>
    <RoomType type="Garage" fa="0.95"/>
</BuildingType>
<BuildingType type="Offices" fa="0.20" td="2250" tn="250">
    <RoomType type="Cellular office 1 person." fa="0.40"/>
    <RoomType type="Cellular office 2-6 persons." fa="0.30"/>
    <RoomType type="Open plan office > 6 persons sensing/30m2" fa="0.00"/>
    <RoomType type="Open plan office > 6 persons sensing/10m2" fa="0.20"/>
    <RoomType type="Corridor (dimmed)" fa="0.40"/>
    <RoomType type="Entrance hall" fa="0.00"/>
    <RoomType type="Showroom/Expo" fa="0.60"/>
    <RoomType type="Bathroom" fa="0.90"/>
    <RoomType type="Rest room" fa="0.50"/>
    <RoomType type="Storage room/Cloakroom" fa="0.90"/>
    <RoomType type="Technical plant room" fa="0.98"/>
    <RoomType type="Copying/Server room" fa="0.50"/>
    <RoomType type="Conference room" fa="0.50"/>
    <RoomType type="Archives" fa="0.98"/>
</BuildingType>
<BuildingType type="Educational buildings" fa="0.20" td="1800" tn="200">
    <RoomType type="Classroom" fa="0.25"/>
    <RoomType type="Room for group activities" fa="0.30"/>
    <RoomType type="Corridor (dimmed)" fa="0.60"/>
    <RoomType type="Junior common room" fa="0.50"/>
    <RoomType type="Lecture hall" fa="0.40"/>
    <RoomType type="Staff room" fa="0.40"/>
    <RoomType type="Gymnasium/Sports hall" fa="0.30"/>
    <RoomType type="Dining hall" fa="0.20"/>
    <RoomType type="Teachers' staff common room" fa="0.40"/>
    <RoomType type="Copying/storage room" fa="0.40"/>
    <RoomType type="Kitchen" fa="0.20"/>
    <RoomType type="Library" fa="0.40"/>
</BuildingType>
<BuildingType type="Hospitals" fa="0.00" td="3000" tn="2000">
    <RoomType type="Wards/Bedroom" fa="0.00"/>
    <RoomType type="Examination/Treatment" fa="0.40"/>
    <RoomType type="Pre-Operation" fa="0.40"/>
    <RoomType type="Recovery ward" fa="0.00"/>
    <RoomType type="Operating theatre" fa="0.00"/>
    <RoomType type="Corridors" fa="0.00"/>
    <RoomType type="Culvert/conduct/(dimmed)" fa="0.70"/>
    <RoomType type="Waiting area" fa="0.00"/>
    <RoomType type="Entrance hall" fa="0.00"/>
    <RoomType type="Day room" fa="0.20"/>
    <RoomType type="Laboratory" fa="0.20"/>
</BuildingType>
<BuildingType type="Manufacturing factory" fa="0.00" td="2500" tn="1500">
    <RoomType type="Assembly hall" fa="0.00"/>
    <RoomType type="Smaller assembly room" fa="0.20"/>
    <RoomType type="Storage rack area" fa="0.40"/>
    <RoomType type="Open storage area" fa="0.20"/>
    <RoomType type="Painting room" fa="0.20"/>
</BuildingType>
<BuildingType type="Hotels" fa="0.00" td="3000" tn="2000">
    <RoomType type="Entrance hall/Lobby" fa="0.00"/>
    <RoomType type="Corridor (dimmed)" fa="0.40"/>
    <RoomType type="Hotel room" fa="0.60"/>
    <RoomType type="Dining hall/cafeteria" fa="0.00"/>
    <RoomType type="Kitchen" fa="0.00"/>
    <RoomType type="Conference room" fa="0.40"/>
    <RoomType type="Kitchen/storage" fa="0.50"/>
</BuildingType>
<BuildingType type="Restaurants" fa="0.00" td="1250" tn="1250">
    <RoomType type="Entrance hall/Lobby" fa="0.00"/>
    <RoomType type="Corridor (dimmed)" fa="0.40"/>
    <RoomType type="Hotel room" fa="0.60"/>
    <RoomType type="Dining hall/cafeteria" fa="0.00"/>
    <RoomType type="Kitchen" fa="0.00"/>
    <RoomType type="Conference room" fa="0.40"/>
    <RoomType type="Kitchen/storage" fa="0.50"/>
</BuildingType>
<BuildingType type="Wholesale and retail service" fa="0.00" td="3000" tn="2000">
    <RoomType type="Sales area" fa="0.00"/>
    <RoomType type="Store room" fa="0.20"/>
    <RoomType type="Store room, cold stores" fa="0.60"/>
</BuildingType>
<BuildingType type="Other" fa="0.00" td="1000" tn="1000">
    <RoomType type="Waiting areas" fa="0.00"/>
    <RoomType type="Stairs (dimmed)" fa="0.00"/>
    <RoomType type="Theatrical stage and auditorium" fa="0.00"/>
    <RoomType type="Congress hall/Exhibition hall" fa="0.00"/>
    <RoomType type="museum/ Exhibition hall" fa="0.00"/>
    <RoomType type="Library/Reading area" fa="0.00"/>
    <RoomType type="Library /Archive" fa="0.00"/>
    <RoomType type="Sports hall" fa="0.00"/>
    <RoomType type="Car parks office - Private" fa="0.00"/>
    <RoomType type="Car parks - Public" fa="0.00"/>
</BuildingType>
 

The mf attribute of a room is the maintenance factor of the room, between 0 and 1.

hta is the worksurface height

td and tn are daylight and nightime hours use of the room, integers, per year.

Rooms have other settings:

<Room roomname="ROOM_000" type="[Educational buildings]Classroom(Fa=0.25)" mf="0.700" hta="0.800" td="1800" tn="200">
    <DcajSettings>
        <Type>Calculated</Type>
        <UserVal>0.0000000</UserVal>
    </DcajSettings>
    <Shading type="No Shading" />
    <Polygon>
        <xy>0.0000000;0.0000000</xy>
        <xy>10.0000000;0.0000000</xy>
        <xy>10.0000000;10.0000000</xy>
        <xy>0.0000000;10.0000000</xy>
    </Polygon>
 

DcajSettings Type can be User or Calculated.

DcajSettings UserVal is a number between 0.0 and 100.0 inclusive

Shading type will be one of the following:

"No Shading",
"Glare Protection",
"Auto Glare Protection",
"Light Guides",

Polygon is a list of 2d points which define the 2D outline of the room in meters. (Polygon also appears in the Zone branches of the XML file.)

A room can have a window list. Windows and Atriums can be connected, more explanation here. Here is a Window list inside a room, 3 windows:

A Window has several tags:

<Window wallid="2"
        windowid="0"
        wide="20.0000"
        high="2.0000"
        x="10.3800" y="0.1000"
        td65="0.8500"
        k1="0.9500" k2="0.9500" k3="0.8500"
        hasgdf="0"
        gdftau="0.8500"
        gdfk1="1.0000"
        gdfk2="1.0000"
        gdfk3="1.0000">

wallid, windowid, wide, high, x and y are explained here.

td65,k1,k2 and k3 are all to do with the transmittance of the window and should have values between 0 and 1.

The gdf attributes have to do with the reduction factors of windows due to frames.

hasgdf should be 0 or 1.

gdftau, gdfk1,gdfk2 and gdfk3 should all have values between 0 and 1.

After the window list there could be a roof light list (for the floor at the top of the building) but the calculation may change so it is not described here.

After Polygon in the Room branch is a list of zones...

ZoneList and Zone

</Polygon>
<ZoneList>
     <Zone zonename="ZONE_01_(ROOM_000)" controltechnique="Manual" ocs="1" zonelux="500" zoneluxreal="500" fa="0.250" fo="1">...
 

Here is an example of a Zone and all the required attributes:

<Zone zonename="BATHROOM_ZONE"
      controltechnique="Manual"
      ocs="1"
      zonelux="500"
      zoneluxreal="500"
      fa="0.250"
      fo="1">
 

zonename must be unique withing a room.

controltechnique must be one of the following

"Manual",
"Automatic Switched On/Off",
"Automatic Switched On/Off In Stages",
"Automatic Daylight Responsive Off",
"Automatic Dimmed Stand-by Losses Switch On",
"Automatic Dimmed No Stand-by Losses Switch On",
"Automatic Dimmed Stand-by Losses No Switch On",
"Automatic Dimmed No Stand-by Losses No Switch On",

 ocs is the Occupancy Control System, an integer, and should be one of the following

• 1=Manual On/Off Switch
• 2=Manual On/Off switch + additional automatic sweeping extinction signal, and Auto on/Dimmed
• 3=Auto on/Auto off and Manual on/ Dimmed
• 4= Manual on/Auto Off

zonelux and zoneluxreal are real numbers, in lux, and never negative. 

zoneluxreal is sometimes called "over design lux" and should be equal to or greater than zonelux. In the calculation zoneluxreal is only considered if there is CLO or CIC specified for the zone (explained below).

Another part of the zone branch is...

    <ConstantIllum active="0" fcc="1.000" />

...which is sometimes called CIC, Constant Illumination Control. active should be "0" or "1" while fcc (the efficiency factor of the control) should be between 0.0 and 1.0 inclusive.

Then there is CLO...

    <ConstLumenOuput active="0" />

...which will have active "0" or "1". A zone cannot have both CLO and CIC active.

Zone polygons and products (luminaires)...

The zone is described as a 2d profile in the same way as a room is:

<Polygon>
    <xy>0.0000000;10.0000000</xy>
    <xy>20.0000000;10.0000000</xy>
    <xy>20.0000000;20.0000000</xy>
    <xy>0.0000000;20.0000000</xy>
</Polygon>

Luminaires (defined in detail in the product list) are inside zones.

<LumList>
    <Luminaire refid="5678" count="56" />
    <Luminaire refid="897" count="3" />
</LumList>

The refid must match one of the refids in the product list at the beginning of the XML file.

The count tag is how many of the product are present in the zone.

A complete example

Here is a complete example of a LENI project with 4 floors which uses 4 products. Here is the top floor graphically:

 

And here is the complete project:

<?xml version="1.0" ?>
<ENEA_LENI_V3>
    <DominantBuildingType>Educational buildings</DominantBuildingType>
    <MF>0.8000000</MF>
    <Latitude>45.7000000</Latitude>
    <Longitude>9.1900000</Longitude>
    <YearToBeBuilt>2050</YearToBeBuilt>
    <YearBuilt>0</YearBuilt>
    <HdirHglob>0.3900000</HdirHglob>
    <PrintMe>false</PrintMe>
    <Products>
        <LumTypeData refid="705 FLC 2X55L">
            <Desc>705 Airone</Desc>
            <TypeFlags>1</TypeFlags>
            <ProdConSys>1</ProdConSys>
            <MaxPow>116.0000000</MaxPow>
            <StandbyPow>0.0000000</StandbyPow>
            <ChargePow>0.0000000</ChargePow>
        </LumTypeData>
        <LumTypeData refid="4234">
            <Desc>ACME 4234</Desc>
            <TypeFlags>1</TypeFlags>
            <ProdConSys>1</ProdConSys>
            <MaxPow>4.0000000</MaxPow>
            <StandbyPow>23.0000000</StandbyPow>
            <ChargePow>4.0000000</ChargePow>
        </LumTypeData>
        <LumTypeData refid="123ABC">
            <Desc>ACME LUX 123ABC description</Desc>
            <TypeFlags>1</TypeFlags>
            <ProdConSys>1</ProdConSys>
            <MaxPow>100.0000000</MaxPow>
            <StandbyPow>0.0100000</StandbyPow>
            <ChargePow>0.0100000</ChargePow>
        </LumTypeData>
        <LumTypeData refid="5678">
            <Desc>ACME 5678</Desc>
            <TypeFlags>1</TypeFlags>
            <ProdConSys>1</ProdConSys>
            <MaxPow>56.0000000</MaxPow>
            <StandbyPow>7.0000000</StandbyPow>
            <ChargePow>8.0000000</ChargePow>
        </LumTypeData>
        <LumTypeData refid="OLB">
            <Desc>OLB Luigi</Desc>
            <TypeFlags>1</TypeFlags>
            <ProdConSys>1</ProdConSys>
            <MaxPow>10.0000000</MaxPow>
            <StandbyPow>0.0000000</StandbyPow>
            <ChargePow>0.0000000</ChargePow>
        </LumTypeData>
    </Products>
    <FloorList>
        <Floor floorname="Floor1" hi="3.00" count="1">
            <PrintMe>false</PrintMe>
            <RoomList>
                <Room roomname="ROOM_000" type="[Other]Waiting areas(Fa=0.00)" mf="0.800" hta="0.800" td="1000" tn="1000">
                    <DcajSettings>
                        <Type>Calculated</Type>
                        <UserVal>0.0000000</UserVal>
                    </DcajSettings>
                    <Shading type="No Shading" />
                    <PrintMe>true</PrintMe>
                    <Polygon>
                        <xy>-40.0000000;0.0000000</xy>
                        <xy>50.0000000;0.0000000</xy>
                        <xy>50.0000000;40.0000000</xy>
                        <xy>-40.0000000;40.0000000</xy>
                    </Polygon>
                    <ZoneList>
                        <Zone zonename="ZONE_01_(ROOM_000)" controltechnique="Automatic Switched On/Off" ocs="3" zonelux="500" zoneluxreal="500" fa="0.500" fo="ffa">
                            <ConstantIllum active="0" fcc="1.000" />
                            <ConstLumenOuput active="0" />
                            <PrintMe>false</PrintMe>
                            <Polygon>
                                <xy>-40.0000000;0.0000000</xy>
                                <xy>50.0000000;0.0000000</xy>
                                <xy>50.0000000;40.0000000</xy>
                                <xy>-40.0000000;40.0000000</xy>
                            </Polygon>
                            <LumList>
                                <Luminaire refid="705 FLC 2X55L" count="3" />
                            </LumList>
                        </Zone>
                    </ZoneList>
                    <WindowList>
                        <Window wallid="0" windowid="0" wide="80.0000" high="2.0000" x="10.0000" y="0.1000" td65="0.8500" k1="0.9500" k2="0.9500" k3="0.8500" hasgdf="0" gdftau="0.8500" gdfk1="1.0000" gdfk2="1.0000" gdfk3="1.0000">
                            <ShadingIndex frontangle="0.0000" sideangle="0.0000" overhangangle="0.0000" />
                            <AtriumName></AtriumName>
                            <LumList />
                        </Window>
                    </WindowList>
                    <RoofLightList />
                </Room>
            </RoomList>
            <AtriumList />
        </Floor>
        <Floor floorname="Floor2" hi="3.00" count="1">
            <PrintMe>false</PrintMe>
            <RoomList>
                <Room roomname="ROOM_000" type="[Educational buildings]Classroom(Fa=0.25)" mf="0.800" hta="0.800" td="1800" tn="200">
                    <DcajSettings>
                        <Type>Calculated</Type>
                        <UserVal>0.0000000</UserVal>
                    </DcajSettings>
                    <Shading type="No Shading" />
                    <PrintMe>true</PrintMe>
                    <Polygon>
                        <xy>-16.8267717;0.8519685</xy>
                        <xy>-17.2165354;14.6496063</xy>
                        <xy>-39.3551181;14.7275591</xy>
                        <xy>-39.5110236;0.8519685</xy>
                    </Polygon>
                    <ZoneList>
                        <Zone zonename="ZONE_01_(ROOM_000)" controltechnique="Automatic Switched On/Off" ocs="3" zonelux="500" zoneluxreal="500" fa="0.500" fo="ffa">
                            <ConstantIllum active="0" fcc="1.000" />
                            <ConstLumenOuput active="0" />
                            <PrintMe>false</PrintMe>
                            <Polygon>
                                <xy>-16.8267717;0.8519685</xy>
                                <xy>-17.2165354;14.6496063</xy>
                                <xy>-39.3551181;14.7275591</xy>
                                <xy>-39.5110236;0.8519685</xy>
                            </Polygon>
                            <LumList>
                                <Luminaire refid="705 FLC 2X55L" count="10" />
                            </LumList>
                        </Zone>
                    </ZoneList>
                    <WindowList>
                        <Window wallid="3" windowid="0" wide="18.0000" high="2.0000" x="1.0000" y="0.1000" td65="0.8500" k1="0.9500" k2="0.9500" k3="0.8500" hasgdf="0" gdftau="0.8500" gdfk1="1.0000" gdfk2="1.0000" gdfk3="1.0000">
                            <ShadingIndex frontangle="0.0000" sideangle="0.0000" overhangangle="0.0000" />
                            <AtriumName></AtriumName>
                            <LumList />
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