Ventilation 2

Ventilation 2

1. operable windows

   • sliding/tilting
   • properties
     • operable
     • no filtering
     • interfere with HVAC
     • depends on wind

2. impacts on ventilation

   • 3 variants
     • wind variants
       • induces single/sided ventilation
     • wind driven cross ventilation
     • combinations with stack effect

3. infiltration

   • all buildings are subject to air leakage
   • depends on
     • size and distribution of leakage paths
     • flow charac. of leakage paths
     • pressure difference across leakage paths

4. NBC Risks

   • nuclear
   • biological
   • chemical contamination
   • passive protection
     • duration you can stay
     • evacuation
     • active measures
   • intentional events
     • position of mail rooms
     • position of air intakes
     • access to building