BIMtopia_Logo

Daylighting

BIM for Architecture, Engineering, and Construction Curriculum

Exercise 3.5.1: Analyzing the Daylighting Provided in a Design

In this exercise, students will learn how to:

  • Use the Autodesk®  Ecotect®  Analysis grid to calculate the daylighting levels at various locations within a design.
  • Set daylighting analysis assumptions to create an accurate estimate.
  • Compare different types of lighting level analyses and the information they provide.
Figure 3.5.1 - Autodesk Ecotect Analysis surface model of school library building

Video Tutorial



Student Exercise

Download Unit3_Lesson5_Exercise1_Start.zip: Imperial or Metric
Revit, Autodesk Ecotect Analysis 2011
  • Use the Ecotect Analysis grid tool to perform an analysis to estimate the daylighting factors (as a percentage) provided at various locations on the balcony level of the library.
  • Repeat the analysis to estimate the daylighting level (in footcandles) provided at the balcony level.
  • Identify especially dark and bright locations to be improved through design measures in the next exercise.

 

Figure 3.5.2 - Autodesk Ecotect Analysis grid showing daylighting values at loft level in school library orientations

Exercise 3.5.2: Adding Design Features to Improve Daylighting

In this exercise, students will learn how to:

  • Model architectural features to improve the daylighting conditions within a space.
  • Increase daylighting through window and skylight placement.
  • Decrease daylighting through shading.
  • Analyze the effectiveness of proposed design changes.
Figure 3.5.3 - Autodesk Ecotect Analysis grid showing daylighting values at loft level in school library

Video Tutorial



Student Exercise

Download Unit3_Lesson5_Exercise2_Start.zip: Imperial or Metric
Revit, Autodesk Ecotect Analysis
  • Use Autodesk®  Revit®  Architecture software to add design features (for example, windows, skylights, and shading) to improve the daylighting on the second floor level of the library building.
  • Try to increase the daylighting in the southeast corner of the balcony to provide natural light sufficient for a reading or study area.
  • Try to reduce the daylighting levels in the southwest corner to minimize the glare on computer screens in a planned cluster area.
  • Export the revised model as a gbXML file and open it in Ecotect Analysis. Then repeat the daylighting analysis performed in the last exercise and compare the results to assess the effectiveness of your design changes.

 

Figure 3.5.4 -  Analysis grid showing effect of new daylighting design improvements