Stratified Air Ventilation Systems

Stratified Air Ventilation Systems

Presenter: Kishor Khankari, Ph.D., Fellow ASHRAE

Displacement ventilation systems and underfloor air distribution system (UFAD) which are also referred as “stratified air distribution systems” work on the principle of thermal buoyancy –hot air due to lower density rises above the cold air. Stratified distribution systems are becoming popular due to their ability to provide better indoor air quality with low energy demand. This presentation will cover the basics of stratified air distribution systems and discuss various applications showing how design and operational parameters can affect the airflow patterns and temperature distribution and resulting thermal comfort of occupants in the space.

Participants will learn:

• Describe basic principles of stratified air ventilation systems
  
• Distinguish between displacement and underfloor air distribution ventilation systems
  
• Explain how various design factors can affect the performance of stratified ventilation systems
  
• Recognize the importance of CFD analysis for design and optimization of stratified ventilation systems
  

1 CEU

Lunch will be provided