Ecotect Presentaion


Published on

A how to guide for using Ecotect

1 Comment
No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Ecotect Presentaion

  1. 1. Ecotect Design Analysis
  2. 2. Important Dates <ul><li>There are four important dates to remember when considering </li></ul><ul><li>sun position: </li></ul><ul><li>21st December _winter solstice _sun at lowest noon altitude </li></ul><ul><li>21st March/ 21st September _spring/autumn equinox _sun rises </li></ul><ul><li>due east, sets due west </li></ul><ul><li>21st June _summer solstice _sun at highest noon altitude </li></ul>
  3. 3. Importing in Ecotect <ul><li>When importing a dxf file in Ecotect, make sure you import it under the proper scale. </li></ul><ul><li>In order to maintain the layers, select: </li></ul><ul><li>Zone -> Select All and then Zone -> Add New Zone and then Import Into Existing. </li></ul><ul><li>Once you have imported the model you need to structure your file to contain the minimum amount of surfaces, i.e. reduce the number of polygons: </li></ul><ul><li>Select All and then Modify -> Merge Coincident Triangles </li></ul><ul><li>Check if the Surface Normals are pointing in the right direction (outwards). </li></ul><ul><li>Display -> Surface Normals (Ctrl + F9) </li></ul><ul><li>You may need to change from a perspective view to plan view for a better control. </li></ul><ul><li>In case there are surface norms pointing inwards you have to select them and reverse them </li></ul><ul><li>Modify -> Reverse Normals (Ctrl + R). </li></ul>
  4. 4. Setting Material Properties <ul><li>Set the appropriate Material Properties </li></ul><ul><li>for the building elements. </li></ul><ul><li>Double click on the selected materials and </li></ul><ul><li>edit their reflectivity (colour).  </li></ul><ul><li>Proper reflectivity values are: </li></ul><ul><li>floors: 0.25     walls: 0.50     ceilings: 0.75 </li></ul>
  5. 5. Setting up a Grid for Analysis <ul><li>Grid cells should not be greater than 1 x 1 m. </li></ul><ul><li>Fit the grid to the selected floor area. </li></ul><ul><li>Finally, adjust the grid offset (i.e. working plane) according to the use of the </li></ul><ul><li>building.(i.e. a kindergarten has a lower working plane than an airport check- </li></ul><ul><li>in hall). Usually, the analysis grid is offset at 600 mm from the floor. </li></ul>
  6. 6. Sun Path Annual
  7. 7. Sun Path Hourly
  8. 8. Shadows and Shading
  9. 9. Shadows & Shading (Ecotect images)
  10. 10. Shadows & Shading
  11. 11. Dudley House Shadows & Shading
  12. 12. Dudley House Shadows & Shading
  13. 13. Right-to-Light (Ecotect images) Right-to-light analysis in the UK involves answering three basic questions: • Are obstructions high enough for concern ? • If so, do they block too much of the sky ? • If so, is the no-sky-line of each room significantly impacted ?
  14. 14. Right-to-Light When dealing with the height of obstructions, the guidelines suggest drawing a section through the site normal to each main face of the building. Then, a line is drawn from a point 2m above the ground outwards from the building at an angle to 25° to the horizontal. If any building projects above this line, it is high enough for concern.
  15. 15. Lighting Analysis – Daylight factor (%) (Ecotect images)
  16. 16. Lighting Analysis – Daylight factor (%) Walkden High School
  17. 17. Lighting Analysis – Illuminance (lux) Masdar Hotel & Conference Centre
  18. 18. Lighting Analysis – Illuminance (lux) Toronto Metro 10 x 2 m opening 10 x 6 m opening
  19. 19. Lighting Analysis – Illuminance (lux) Toronto Metro 10 x 2 m opening 10 x 6 m opening
  20. 20. Solar Radiation <ul><li>Incident solar radiation </li></ul><ul><li>Absorbed/ transmitted radiation </li></ul><ul><li>Sunlight/ overshadowing hours </li></ul>
  21. 21. Solar Radiation Dudley House
  22. 22. Solar Radiation Bothwell Plaza Without Shading With Shading
  23. 23. Solar Radiation Masdar Hotel & Conference Centre