4.493 | January IAP 2006 | Graduate

Natural Light in Design

Lecture Notes

Tuesday, January 24

9:30 Welcome, class introduction, design project (teams formed on following morning)
10:00 General introduction to daylighting (benefits, design issues, thermal aspects, built examples) (PDF - 5.3 MB)
10:30 Introduction to building simulation (why simulations for architects, tools used in this course) (PDF)

Photometry (definition, measurement, typical values, DF definition) (PDF - 1.2 MB)

Static daylighting metrics (context of LEED, selected results from NRC survey, DF and solar shading) (PDF)

Daylight factor calculations: Sky models CIE and perez, Split-Flux method, LEED spreadsheet method (PDF - 2.6 MB)

Daylight factor simulation: Design sky, Split Flux method in Ecotect (PDF)

  • Hands-on exercise: DF calculation in Ecotect (Split Flux)

  • Hands-on exercise: Solar shading module in Ecotect

    Introduction to Radiance (PDF - 1.9 MB)

    • Hands-on exercise: Radiance visualizations
    • Hands-on exercise: DF calculation in Ecotect (Radiance)

Climate data (data definition and measurement, energy and weather data directory) (PDF)

Hands-on exercise: Weather tool in Ecotect (PDF)

Overview on visual comfort (glare, contrast, recommendations) (PDF - 1.3 MB)

Dynamic metrics and related tools (PDF)


Hands-on exercise: Daysim exercise from tutorial interrupted by discussions on: (PDF - 1.6 MB)

  • Short time steps dynamics
  • Daylight coefficients
  • User behavior model
  • Daylight autonomy results
17:00 Hands-on exercise: Students to repeat DF, solar shading and daylight autonomy analyses on their own
17:30 End of first day

Wednesday, January 25

9:30 Miscellany: Announcements, organization of design project teams

Hands-on exercises: Review yesterday’s content

Daylit buildings and technologies (including advanced materials) (PDF - 1.5 MB)

Introduction to advanced radiance materials, Ecotect’s RADTOOL (PDF)

11:15 Hands-on exercises: Import geometries and materials from other programs (SketchUp, AutoCAD®)
12:15 Specialty topics (to be suggested by participants before the workshop)
14:00 Hands-on exercises: Participants start working on their own models (participants will have the opportunity to discuss their project ideas with the instructors)
16:00 Continue previous activities
17:30 End of second day

Course Info

As Taught In
January IAP 2006