Photo of James Freihaut

James Freihaut

Professor

Affiliation(s):

  • Architectural Engineering

104 Engineering Unit A

jdf11@psu.edu

814-863-0083

Research Areas:

Building Mechanical Systems

Interest Areas:

Indoor Air Quality and Building Science, combined heat and power systems, distributed energy systems, enclosed space air quality issues, system constraints on air treatment/filtration solutions.

 
 

 

Education

Publications

Journal Articles

  • S. Martin, E. Shogren, D. Blum, P. Kremer, W. Bahnfleth and James Freihaut, 2012, "Issues Surrounding Air-Phase Ultraviolet Inactivation Rate Constants (k-values) and the Development of a Dual-Collimation Batch Reactor for Determining k-values for Airborne Microorganisms", Indoor Air Journal
  • S. Martin, E. Shogren, D. Blum, P. Kremer, W. Bahnfleth and James Freihaut, 2012, "A Novel Dual-Collimation Batch Reactor for Determination of Ultraviolet Inactivation Rate Constants for Microorganisms in Aqueous Suspensions", Indoor Air Journal
  • J. Firrantello, P. Aumpansub, W. P. Bahnfleth, B. Hu, James Freihaut, B. Thran and S. Hutchens, 2007, "Effects of HVAC System and Building Characteristics on Exposure of Occupants to Short-Duration Point Source Aerosol Releases", Journal of Architectural Engineering, (2), pp. 84-94
  • James Freihaut, M. Chapman, A. Salapatek and P. Patel, 2007, "Aerodynamic Properties of Milled Allergen Products: Preparation of "Standard, Air-suspendable Dog, Cat, Cockroach and Mite Allergen Powders", Allergy: European Journal of Allergy and Clinical Immunology, 62, pp. pg. 38
  • J. Firrantello, W. P. Bahnfleth, A. Musser, James Freihaut and J.-W. Jeong, 2007, "Use of Factorial Sensitivity Analysis in Multizone Airflow Model Tuning", ASHRAE Transactions, 113, pp. 642-651
  • A. Salapatek, P. Patel, N. Mec, L. Nimraj, A. Ramoutar, M. D. Chapman and James Freihaut, 2007, "Development of Asthma Study Technologies in an Environmental Chamber (ASTEC)", The Journal of Allergy and Clinical Immunology, 119, (1), pp. S3
  • C. Gomes, James Freihaut and W. P. Bahnfleth, 2007, "Resuspension of Allergen-Carrying Particles Under Mechanical and Aero-dynamic Disturbances from Human-Walking", Atmospheric Environment, 41, pp. 5257-5270

Conference Proceedings

  • K. Xu, P. Delgoshaei, S. Wagner and James Freihaut, 2013, ""As-Operated" Whole Building Energy Models for Existing Commercial Medium Office Buildings-A Case Study", 2013 Architectural Engineering Institute (AEI) Conference
  • P. Delgoshaei, K. Xu, S. Wagner and James Freihaut, 2013, "Plug Load Measurement for a Medium Office Building- A Case Study", 2013 Architectural Engineering Institute (AEI) Conference
  • K. Xu and James Freihaut, 2012, "Building and System Level Sensitivity Analysis to U.S. DOE Commercial Reference Office Building in Different Climate Zones", The 1st Asia conference of International Building Performance Simulation Association
  • A. M. Salapatek, S. McCue, L. Minray, B. Walsh, H. Nandkeshore, M. Chapman, J. Corren, James Freihaut and P. Pater, 2007, "Validation of a Natural Cat Allergen Challenge Room (CACR)", Proceedings of the World Allergy Conference, pp. 3
  • J. Lau, W. P. Bahnfleth and James Freihaut, 2007, "Estimating the Effects of Ambient Conditions and Aging on the Performance of UVGI Air Cleaners", Proceedings of the 6th International Conference on Indoor Air Quality, Ventilation & Energy Conservation in Buildings, (IAQVEC 2007), pp. 15
  • J. Lau, W. P. Bahnfleth and James Freihaut, 2007, "Predicted Performance of In-Duct UVGI Systems Under Variable Operating Conditions", Proceedings of ASHRAE Indoor Air Quality, IAQ 2007 Healthy and Sustainable Buildings, pp. 16
  • James Freihaut, M. Chapman, A. Salapatek and P. Patel, 2007, "Aerodynamic Properties of Milled Allergen Products: Preparation of "Standard," Air-suspendable Dog, Cat, Cockroach and Mite Allergen Powders", Proceedings of XXVI Congress of the European Academy of Allergology and Clinical Immunology, pp. 3
  • C. Gomes, W. P. Bahnfleth, B. Thran and James Freihaut, 2007, "Production of Characterized, Air Suspendable Dusts Containing Common Indoor Allergens for Inhalation Exposure Research", Proceedings of the 9th REHVA World Congress Clima, pp. 12
  • James Freihaut, A. M. Salapatek and P. Pytel, 2007, "Standardization of Dust Mite Allergen Inhalant for Use in an Environmental Exposure Chamber (EEC)", Proceedings of the American Academy of Allergology and Clinical Immunology, 63rd Annual Congress, pp. pg. 3
  • J. Firrantello, W. P. Bahnfleth, A. Musser, James Freihaut and J.-W. Jeong, 2005, "Application of Sensitivity Analysis to Multizone Airflow Model Tuning", Proceedings of Clima 2005 (8th REHVA World Congress), pp. 7
  • W. Bahnfleth, W. Kowalski and James Freihaut, 2005, "Standards and Guidelines for UVGI Air Treatment Systems", Proceedings of Indoor Air 2005 (10th International Conference on Indoor Air Quality and Climate), pp. 5
  • C. Gomes, James Freihaut and W. Bahnfleth, 2005, "Resuspension of Allergen-Containing Particles under Mechanical and Aerodynamic Disturbances from Human Walking - Introduction to an Experimental Controlled Disturbance Methodology", Proceedings of Indoor Air 2005 - The 10th International Conference on Indoor Air Quality and Climate, pp. 7
  • B. Hu, James Freihaut, C. Gomes and B. Thran, 2005, "Literature Review: Indoor Particle Re-suspension by Human Activity", Proceedings of Indoor Air 2005 - The 10th International Conference on Indoor Air Quality and Climate, pp. 7

Manuscripts

  • B. Hu, James Freihaut, W. P. Bahnfleth and B. Thran, , "Simulating Transient Particle Deposition/Re-suspension in Indoor Environments with Multi-zone Airflow and Contaminant Transport Software"
  • H. C. Foley, James Freihaut, P. Hallacher and C. Knapp, , "The Greater Philadelphia Innovation Cluster (GPIC) for Energy-Efficient Buildings: A New Model for Public-Private Partnerships", Research Technology Management, pp. 15
  • B. Hu, James Freihaut, W. P. Bahnfleth, P. Aumpansub and B. Thran, , "Modeling Particle Dispersion under Human Activity in a Mulitzone Indoor Environment", Journal of Architectural Engineering
  • J.-W. Jeong, J. Firrantello, James Freihaut, W. Bahnfleth and A. Musser, , "Feasibility of Wireless Measurements for Semi-Empirical Multizone Airflow Model Tuning", Energy and Buildings
  • J. Firrantello, W. P. Bahnfleth, J.-W. Jeong, A. Musser and James Freihaut, , "Field Testing of Data Driven Multizone Model Calibration Procedure", Building Services Engineering Research and Technology

Research Projects

  • July 2017 - June 2018, "Combined Heat & Power Enabled Renewables, Distributed Energy technology via Use of Pennsylvania Marcellus Shale Gas," (Sponsor: COP: Department of Environmental Protection).
  • September 2017 - August 2018, "SPOT Optimiser Validation," (Sponsor: Alencon, LLC).
  • July 2016 - June 2017, "CHP-Enabled Renewables," (Sponsor: COP: Department of Environmental Protection).
  • September 2013 - September 2017, "Combined Heat and Power Mid-Atlantic Technical Assistance Partnership Center (year 3 of 4)," (Sponsor: U.S. Department of Energy).
  • September 2013 - September 2016, "Combined Heat and Power Mid-Atlantic Technical Assistance Partnership Center (year 3 of 4)," (Sponsor: U.S. Department of Energy).
  • September 2013 - September 2015, "Combined Heat and Power Mid-Atlantic Technical Assistance Partnership Center," (Sponsor: U.S. Department of Energy).
  • October 2010 - September 2015, "Greater Philadelphia Innovation Cluster (GPIC) for Energy Efficient Buildings known as E-RIC the Energy Regional Innovation Cluster: Support of Building 661+ Project.," (Sponsor: U.S. Department of Commerce).
  • February 2011 - January 2014, "Greater Philadelphia Innovation Cluster for Energy Efficient Buildings (GPIC)," (Sponsor: National Energy Technology Laboratory).
  • September 2013 - September 2014, "Combined Heat and Power Mid-Atlantic Technical Assistance Partnership Center," (Sponsor: U.S. Department of Energy).
  • February 2011 - January 2013, "Greater Philadelphia Innovation Cluster for Energy Efficient Buildings (GPIC)," (Sponsor: National Energy Technology Laboratory).
  • October 2009 - January 2013, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - January 2013, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - January 2013, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - January 2013, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - September 2013, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • August 2010 - August 2013, "ARRA: Grid STAR: Smart Grid Training and Application Resource Center," (Sponsor: National Energy Technology Laboratory).
  • October 2009 - January 2012, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • February 2011 - January 2012, "Greater Philadelphia Innovation Cluster for Energy Efficient Buildings (GPIC)," (Sponsor: National Energy Technology Laboratory).
  • October 2009 - December 2011, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - December 2011, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - December 2011, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - December 2011, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - December 2011, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • July 2010 - June 2011, "Center for High Performance Building Systems," (Sponsor: Ben Franklin Technology Center of Central & Northern Pennsylvania, Inc.).
  • May 2010 - June 2011, "Center for High Performance Building Systems," (Sponsor: Construction Specialties, Inc.).
  • May 2010 - June 2011, "Center for High Performance Building Systems," (Sponsor: Flad Architects).
  • May 2010 - June 2011, "Center for High Performance Building Systems," (Sponsor: Johns Manville Corporation).
  • May 2010 - June 2011, "Center for High Performance Building Systems," (Sponsor: Pittsburgh Corning Corporation).
  • May 2010 - June 2011, "Center for High Performance Building Systems," (Sponsor: PPG Industries).
  • May 2010 - June 2011, "Associate Membership in the Center for High Performance Building Systems," (Sponsor: Green Power Technologies).
  • May 2010 - June 2011, "Center for High Performance Building Systems," (Sponsor: Bayer MaterialScience LLC).
  • July 2009 - June 2010, "Center for High Performance Building Systems," (Sponsor: Ben Franklin Technology Center of Central & Northern Pennsylvania, Inc.).
  • October 2009 - September 2010, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • October 2009 - December 2010, "PSU Mid-Atlantic Clean Energy Application Center (CEAC) Proposal," (Sponsor: U.S. Department of Energy).
  • April 2005 - December 2008, "Re-suspension Characteristics and Surface Sampling Protocol for Indoor Bioaerosol Contaminants," (Sponsor: U.S. Department of the Army).
  • February 2007 - December 2008, "Development of Assessment Protocols for Building Security Measures: A Scoping Study," (Sponsor: National Center for Energy Management and Building Technologies).
  • March 2007 - December 2008, "Impact of Air Return Strategy on Building Energy Consumption and Indoor Air Quality," (Sponsor: National Center for Energy Management and Building Technologies).
  • January 2005 - March 2008, "Bioaerosol Control Technology Laboratory - Scale Testing and Full-Scale Test Facility Development," (Sponsor: University of Illinois at Chicago).
  • July 2006 - December 2008, "Indoor Bioaerosol Reservoir Characterization and Deposition/Resuspension Rate Determination," (Sponsor: U.S. Department of the Army).
  • January 2005 - March 2007, "Bioaerosol Control Technology Laboratory - Scale Testing and Full-Scale Test Facility Development," (Sponsor: University of Illinois at Chicago).
  • May 2004 - May 2006, "Rapid Semi-Empirical Tool for Estimating Air Flow in Facilities," (Sponsor: U.S. Army Research, Development and Engineering Command).
  • April 2005 - June 2006, "Re-suspension Characteristics and Surface Sampling Protocol for Indoor Bioaerosol Contaminants," (Sponsor: U.S. Department of the Army).
  • May 2004 - July 2006, "User Friendly, Rapid Design Tool for HVAC Vulnerability Reduction - Task 3.8," (Sponsor: U.S. Army Research, Development and Engineering Command).
  • April 2004 - March 2005, "Air-Conditioner UVGI Test Plan Development and Assessment," (Sponsor: General Electric Co.).
  • September 2003 - December 2005, "Indoor Air Modeling for Human Pathogens," (Sponsor: U.S. Department of the Army).
  • September 2003 - June 2005, "Indoor Air Modeling for Human Pathogens," (Sponsor: U.S. Department of the Army).

Honors and Awards

Service

Service to Penn State:

  • Committee Work, Planning Committee for Berks County Industrial Development Ctr. Microgrid, 2015
  • Committee Work, Member, Development Task Force, August 2015 - August 2016
  • Committee Work, Member, Promotionand Tenure Committee, January 2014 - January 2016
  • Committee Work, Chairperson, Graduate Studies Committee - (GPO), August 2014 - August 2016
  • Committee Work, Member, Executive Committee - Mechanical (GPO), August 2014 - August 2016
  • Committee Work, Member, Undergraduate Studies Committee - (GPO - as needed), August 2014 - August 2016
  • Committee Work, Member, University Faculty Senate Outreach Committee, September 2006

Service to External Organizations:

  • Organizing Conferences and Service on Conference Committees, Member, Singapore National Research Foundation Review Committee, 2015
  • Participation in or Service to Professional and Learned Societies, Instructor, Visiting Professor Dalian University of Technology, 2015 - 2018
  • Organizing Conferences and Service on Conference Committees, Member, Technical Advisory Committee for Energy Integration Systems R&D of the National Renewable Energy Laboratory, 2015
  • Participation in or Service to Professional and Learned Societies, Instructor, Dalian University of Technology Seasky Scholar, 2012 - 2015
 


 

About

Widely acknowledged as one of the top Architectural Engineering programs in the world, the Penn State AE Department is dedicated to providing outstanding academic excellence to all of our students. The AE program is focused on preparing students and conducting research in the design, engineering, and construction of building projects.

Department of Architectural Engineering

104 Engineering Unit A

The Pennsylvania State University

University Park, PA 16802

Phone: 814-865-6394