Designing Natural Ventilation: Will the Breeze Follow Your Pointy Arrows? Video, 61 minutes

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Part 3 of Kjell Anderson's "Early-Design Modeling: New Tools and New Approaches"

While airflow analysis isn't part of most building simulations today, it is part of nearly all low-energy buildings.

Unfortunately, many architects aren't well-positioned to take advantage of this opportunity because they aren't trained to set up or interpret most airflow models.

How to engage with newer, more sophisticated software

This webcast will introduce you to new software that enables you to engage more fully with airflow investigations required to validate design strategies.

Our three modeling experts will show you the key methods and terminology of airflow analysis, and present case studies of buildings that incorporated natural ventilation to reduce mechanical cooling demand by 65% or more.

You'll learn how to integrate modeling techniques and software into the major ventilation considerations:

  • Climate Analysis
  • Programming for Natural Ventilation
  • Design Intent: ventilation, passive cooling or both?
  • Desired Outcomes: energy savings? thermal comfort? downsizing or elimination of cooling or ventilation system?


A lifelong Washington resident, Kjell Anderson practices architecture at LMN Architects and works with the LMN Tech Studio in Seattle. When he's not designing buildings and simulating energy performance, he spends time with his wife and daughters, plays the violin/fiddle, and is active in local and national sustainability and AIA initiatives

Jim is Miller Hull's building performance leader, where he works as an integral part of the various design teams to develop project goals, design methodologies, and research tasks required to execute the projects. He also leads Miller Hull's post-occupancy evaluation program, where he analyzes and reports on the quantitative and qualitative performance of the built work. Jim presents often on low-energy buildings and sustainable design.

Alejandra holds a B. Eng. in Mechanical Engineering from Mexico’s National University, a M.S. in Aerospace Engineering and a Ph.D. in Mechanical Engineering, both from MIT. Her specialty is heat and airflow building dynamics with a focus on natural ventilation design. She also teaches natural ventilation design at the Harvard Graduate School of Design and at the MIT Department of Architecture.

Paula Melton, LEED AP BD+C, is Managing Editor at BuildingGreen, where she writes feature articles, blog posts, and product reviews on a variety of sustainable design topics. With an MFA in creative writing and a background in both journalism and socially responsible marketing, she has been researching and writing about health and sustainability for more than a decade.