Air Flow Control Performance: Define, Measure, Achieve

Jim Coogan, Siemens
Paul Fuson, Siemens

Safe and sustainable laboratories depend on ventilation systems that perform at a high level. Reliability, accuracy, operating range, and dynamic stability are the traits that the engineering and construction team seeks to deliver. How do we quantify them? How do we confirm them? How do we maintain them? This talk nails down the details.

Learning Objectives

  • Connect air flow control performance with objectives for safety and efficiency;
  • Apply dynamic response concepts to air flow for hoods and pressurized rooms;
  • Apply instrument accuracy concepts in evaluation of air flow control systems, recognizing the effects of components on overall accuracy; and
  • Evaluate air flow control using performance test data.


Jim is a Principal in product development at Siemens SI with 40 years designing controls for mechanical systems; contributing to products ranging from room controllers to Internet-based interfaces and 20+ patents resulting from this work. He chaired several ASHRAE committees and led the recently completed revision Z9.5 Laboratory Ventilation Standard.

With more than three decades of experience in developing and delivering safe ventilation control solutions for healthcare and critical environments, Paul has led the development of a wide range of Siemens products and solutions, including the GOLO intelligent air valve and the Green Lab Solution. He is a regular speaker for ASHRAE, ASHE, and I2SL.


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