William P. "Bill" Bahnfleth, Ph.D., P.E., Fellow ASHRAE, ASME Fellow
Professor of Architectural Engineering and director of the Indoor Environment Center at The Pennsylvania State University University Park, PA
William P. “Bill” Bahnfleth, Ph.D., P.E., Fellow ASHRAE, ASME Fellow, is a professor of Architectural Engineering and director of the Indoor Environment Center at The Pennsylvania State University, University Park, Pa.
As ASHRAE’s president, Bahnfleth chairs the Society’s Board of Directors and Executive Committee.
Bahnfleth’s Presidential Theme, “Shaping the Next,” focuses on embracing our responsibility to “Our World” – fellow humans and the earth, to make buildings safe, healthy, productive, comfortable environments in harmony with nature. To do this, he believes we must develop “Ourselves” – the human resource of the professional community, and transform “Our Work” – what we do, how we do it, and who we do it with, by becoming more global in outlook, broader in scope, and more collaborative in approach.
Bahnfleth is the son of ASHRAE Presidential Member Donald R. Bahnfleth, Fellow ASHRAE, Life Member, who served as president in 1985-86. This marks the first father/son presidency in ASHRAE’s history.
He has conducted research on a diverse range of topics including ground-coupled heat transfer, variable primary flow chilled water systems, performance measurement of stratified chilled water storage tanks, optimization of diffusers for chilled water storage tanks, measurement of envelope air leakage of tall buildings, ultraviolet germicidal irradiation (UVGI) for air and surface disinfection in HVAC systems, user-friendly multizone airflow and contaminant dispersion models, metrics for predicting the impact of measures to mitigate risk from airborne indoor contaminant releases, and others. He is the author of more than 125 articles and technical papers and author or reviser of 12 books/book chapters.
In his ASHRAE service, Bahnfleth is faculty advisor to the Pennsylvania State University – University Park Student Branch, and is an ASHRAE Distinguished Lecturer. He has chaired ASHRAE’s Technology Council, Members Council, Technical Activities Committee and Technical Committee 6.9 Thermal Storage, among others. He has served as a member of numerous committees, including recent appointments to the CLIMA 2013 Advisory Committee, the Building Performance Alliance Ad Hoc Committee, and the Building Safety and Security Position Document Committee.
Bahnfleth was awarded both a Bachelor (1979) and Master (1980) of Science degree in mechanical engineering; a Bachelor of Music (1988) in pipe organ performance; and a doctorate in mechanical engineering (1989) from the University of Illinois at Urbana-Champaign.
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Presidential Initiative Regarding Residential Marketplace
As part of his presidential theme, "Shaping the Next," 2013-14 President William P. Bahnfleth appointed the ASHRAE Support for Residential Construction Ad Hoc Committee, which was tasked to "define a path forward that will provide direction to the Society on how it can contribute most effectively to the improvement of the performance of residential buildings."
William P. “Bill” Bahnfleth, Ph.D., P.E., Fellow ASHRAE, ASME Fellow
The Pennsylvania State University
University Park, Pennsylvania
Thomas “Tom” H. Phoenix, P.E., Fellow ASHRAE, ASHRAE-Certified Building Energy Assessment and Building
Energy Modeling Professional
Moser Mayer Phoenix Associates
T. David Underwood, P.Eng., Fellow ASHRAE, Life Member, ASHRAE-Certified Commissioning Process Management Professional
Oakville, Ontario, Canada
Darryl K. Boyce, P.Eng., Fellow ASHRAE
Ottawa, Ontario, Canada
Bjarne W. Olesen, Ph.D., Fellow ASHRAE, Life Member
Danish Technical Institute
Kongens Lyngby, Denmark
Daniel C. Pettway
Hobbs and Associates
Thomas E. Werkema
Directors and Regional Chairs
Region I Director and Regional Chair
Joseph L. Furman
Region II Director and Regional Chair
Isabelle Lavoie, Eng.
Saint-Laurent, Quebec, Canada
Region III Director and Regional Chair
Paul E. Petrilli, P.E.
H.F. Lenz Co.
Region IV Director and Regional Chair
M. Ginger Scoggins, P.E.
Cary, North Carolina
Region V Director and Regional Chair
Richard A. Zbin, ASHRAE-Certified Healthcare Facility Design Professional
Region VI Director and Regional Chair
Mark F. Miller
Mestek Inc. – Airtherm Division
Region VII Director and Regional Chair
Jeff W. Gatlin, P.E.
Thompson Engineers Inc.
Region VIII Director and Regional Chair
John L. Harrod, P.E., ASHRAE-Certified Healthcare Facility Design Professional
Region IX Director and Regional Chair
Richard J. Bowman
Mechanical Concepts LLC
Region X Director and Regional Chair
Michael T. Burgess, P.E., ASHRAE-Certified Commissioning Process Management Professional
San Diego, California
Region XI Director and Regional Chair
Kevin L. Marple
Benz Air Engineering Co. Inc.
Region XII Director and Regional Chair
Jennifer A. Isenbeck, P.E., ASHRAE-Certified Commissioning Process Management Professional
Sodexo/University of Tampa
Region XIII Director and Regional Chair
Edward K.C. Tsui
Intelligent Technologies Ltd.
Region-At-Large Director and Regional Chair
Ashok K. Virmani
Suvidha Engineers India Pvt. Ltd.
New Delhi, India
Roberto R. Aguilo, P.E.
Aguilo and Associates
Universidad Nacional de Luján
Buenos Aires, Argentina
Charles H. Culp III, Ph.D., P.E., Fellow ASHRAE, ASHRAE-Certified High Performance Building Design Professional
Texas A&M University
College Station, Texas
K. William Dean, P.E.
National Research Council of Canada
Saskatoon, Saskatoon, Canada
Patricia Graef, P.E., Fellow ASHRAE
Fort Myers, Florida
Julia A. Keen, Ph.D., P.E., ASHRAE-Certified High Performance Building Design Professional
Kansas State University
Stephen D. Kennedy
Georgia Power Co.
Ben A. Leppard, P.E.
Leppard Johnson and Associates
Kirk T. Mescher, P.E.
CM Engineering Inc.
Dennis J. Wessel, P.E., Fellow ASHRAE