TABLE OF CONTENTS
4/7/09 XIV
Figure 58. Daylighting shelf diagram....................................................................... 407
Figure 59. Daylighting shelf DXF output. ................................................................ 408
Shelf Daylighting Device Output ............................................................................. 410
DaylightingDevice:LightWell.................................................................................... 411
Figure 60. Skylight with light well: (a) perspective view, (b) vertical
section. If the bottom of the light well is a rectangle of side lengths c and
d, as shown in (a), then the perimeter of the bottom of the well = 2(c+d)
and the area = cd (see description of field names for the Light Well
object). .................................................................................................................... 411
Figure 61. Graph showing light well efficiency vs. well cavity ratio (WCR)
for well-wall visible reflectances of 80% (upper curve), 60% (middle
curve) and 40% (lower curve). Based on Fig. 8-21 of the Lighting
Handbook: Reference and Application, 8
th
Edition, 1993, Illuminating
Engineering Society of North America. ................................................................... 412
Daylighting Modeling Options .................................................................................413
Table 19. Daylighting Modeling Options ................................................................. 413
Group – Exterior Energy Use Equipment...................................................................... 414
Exterior:Lights ......................................................................................................... 414
Exterior Lights Outputs............................................................................................ 415
Exterior:FuelEquipment........................................................................................... 416
Exterior:WaterEquipment ........................................................................................ 417
Exterior Fuel Equipment, Exterior Water Equipment Outputs................................. 418
Group – Airflow ............................................................................................................. 419
ZoneInfiltration:DesignFlowRate ............................................................................. 419
ZoneInfiltration:EffectiveLeakageArea .................................................................... 424
ZoneInfiltration:FlowCoefficient............................................................................... 426
ZoneInfiltration Outputs........................................................................................... 429
ZoneVentilation ....................................................................................................... 430
ZoneVentilation Outputs.......................................................................................... 438
ZoneMixing.............................................................................................................. 439