1. Designing for Natural Ventilation: Principles, Strategies & Technologies

2. Principles of Natural Ventilation

3. First Principle

4. First principle: Naturally ventilated buildings will normally produce half the carbon emissions of an ACMV building

5. First principle: Naturally ventilated buildings will normally produce half the carbon emissions of an ACMV building

6. Second principle: it’s going to be warmer than 25 deg C sometimes

7. Third principle: Natural ventilation is not appropriate for all processes, load scenarios or sites

8. … and the servicing strategy doesn’t have to be the same everywhere

9. Fourth principle: Natural ventilation needs to be designed

10. Fourth principle: Natural ventilation needs to be designed

11. Some rules of thumb: single-sided natural ventilation

12. Some rules of thumb: floor-plate depth

13. Glazing and shading

14. Slide 14

15. Adjustable shades

16. How much opening area?

17. Do some sums: Single-sided ventilation –buoyancy driven

18. Cross Ventilation

19. Cross Ventilation

20. Do more sums: Cross-flow ventilation – wind-driven

21. Buoyancy-driven ventilation

22. Make use of the space

23. Use of atria

24. Double façades (1)

25. Double façades (2)

26. Double façades (3)

27. Do even more sums: thermal analysis and CFD

28. Control of Reverberation

29. Night-time ventilation

30. Mixed mode – the best of both worlds

31. Summary