Indoor Environment Center

Papers & Articles

Papers and Articles

Papers:

Firrantello, J., W. Bahnfleth.  2011An Air Cleaner Effectiveness Approach to the Analysis of In-Duct UVGI (CORRECTED).  Indoor Air 2011 (12th International Conference on Indoor Air Quality and Climate), Austin, Texas, June 2011.  6 pages.

Gomes, C., J. Freihaut, W. Bahnfleth, J. Rosenberger.  2008.  Resuspension rates of carrier particle mediated indoor contaminants in the 0.5-10 micron regime.  Indoor Air 2008 (11th International Conference on Indoor Air Quality and Climate), Lyngby, Denmark, August 2008.  8 pages.

Lau, J., W. Bahnfleth, R. Mistrick, P. Kremer, J. Freihaut.  2008. Modeling and experimental validation of the irradiance distribution in an in-duct UVGI device.  Indoor Air 2008 (11th International Conference on Indoor Air Quality and Climate), Lyngby, Denmark, August 2008.  7 pages.

Lau, J., W. Bahnfleth, P. Kremer, J. Freihaut.  2008. Investigation of surface temperature distributions of UVC lamps under variable flow conditions using infrared camera measurements.  Indoor Air 2008 (11th International Conference on Indoor Air Quality and Climate), Lyngby, Denmark, August 2008. 8 pages.

Lau, J., W. Bahnfleth, J. Freihaut.  2007.  Estimating the effects of ambient conditions and aging on the performance of UVGI air cleaners.  Proceedings of IAQVEC 2007 (6th International Conference on Indoor Air Quality, Ventilation, and Energy Conservation in Buildings), Sendai, Japan, October 2007.  Volume II, pp. 557-564. 

Lau, J., W. Bahnfleth, J. Freihaut.  2007.  Predicted performance of in-duct UVGI systems under variable operating conditions.  Proceedings of IAQ 2007-Healthy and Sustainable Buildings, Baltimore, MD, October 2007. 

Firrantello, J., W. Bahnfleth, J. Jeong, A. Musser, J. Freihaut.  2007  Field testing of a semi-empirical multizone airflow model calibration method.  Proc. Clima 2007 – WellBeing Indoors (9th REHVA World Congress), Helsinki, Finland, June 2007. 

Gomes, C., B.Hu, W. Bahnfleth, J. Freihaut.  2007.  Production of characterized, air suspendable, dusts containing common indoor allergens for inhalation exposure research.  Proc. Clima 2007 – WellBeing Indoors (9th REHVA World Congress), Helsinki, Finland, June 2007. 

Yoon, Y., R. Mistrick, M. Moeck, and W. Bahnfleth.  2007.  Optimization of energy-efficient toplighting systems and comparison to LEED criteria.  Proceedings of the IESNA Annual Conference, Phoenix AZ Jan. 2007.

Hu, B. J. Freihaut, W. Bahnfleth, B. Thran.  2006.  Simulating transient particle deposition/re-suspension in indoor environments.  Proc. Third International Building Physics Conference.  Montreal Canada 7 pages.

Bahnfleth, W., P. Aumpansub, T. A. Reddy, and J. Freihaut. 2006  Methodology for quantitative evaluation of control measures for indoor air contaminants.  Proceedings of Indoor Environmental Quality - Problems, Research, and Solutions (co-sponsored by Air and Waste Management Association and U.S. EPA) 19 pages.

Gomes, C., B. Hu, J. Freihaut, W. Bahnfleth.  2006.  Surface-to-air suspension behavior of allergen-containing particles in indoor environments.  Proceedings of Indoor Environmental Quality - Problems, Research, and Solutions (co-sponsored by Air and Waste Management Association and U.S. EPA) 28 pages.

Firrantello, J., W. Bahnfleth, A. Musser, J. Freihaut, J.-W. Jeong.  2005.  Application of sensitivity analysis to multizone airflow model tuning.  Proceedings of Clima 2005 (8th REHVA World Congress) paper 289, 6 pages. 

Bahnfleth, W., W. Kowalski, and J. 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. 3464-3468. 

Hu, B., J. Freihaut, C. Gomes, W. Bahnfleth, and B. Thran.  2005.  Literature review and parametric study: indoor particle resuspension by human activity.  Proceedings of Indoor Air 2005 (10th International Conference on Indoor Air Quality and Climate) pp. 1541-1545.

Gomes, C., J. Freihaut, and W. Bahnfleth.  2005.  Resuspension of allergen-containing particles under mechanical and aerodynamic disturbances from human walking – introduction to an experimental controlled methodology.  Proceedings of Indoor Air 2005 (10th International Conference on Indoor Air Quality and Climate) pp. 1445-1449.

Riley, D., J. Freihaut, W. Bahnfleth and Z. Karapetyan.  2004.  Indoor air quality management and infection control in health care facility construction.  Proceedings of the CIB World Building Conference 2004.  10 pages.

Bahnfleth, W. and E. Peyer. 2003. Energy use characteristics of variable primary flow chilled water pumping systems. Proceedings of the 21st IIR International Congress on Refrigeration.

Bahnfleth, W. P. and Wladyslaw J. Kowalski. Standards and guideline requirements for UVGI air treatment systems. Accepted by the 10th International Conference on Indoor Air Quality and Climate, Beijing, China.

Cimbala, J. M. Lindberg, D. V., Wheeler, E. F., Pawar, S., Using Computational Fluid Dynamics to Study Poultry House Ventilation and Disease Spread, CIDD Forum on Disease Spread, December 2005, Penn State University.

Freihaut, J., W. Bahnfleth, C. Gomes, B. Hu, J. Firrantello, P. Aumpansub, and B. Thran. Aerosol Exposures Due to Re- suspension from Building Reservoir Surfaces. Society for Risk Analysis Annual Meeting 2004: Session M3 – Microbial Dose- Response Assessment for Inhalation Exposures.

Freihaut, J., Gomes, C., Aerodynamic properties of milled allergen products: preparation of "standard" mite allergen powders and measured surface-to-air suspension properties. Abstract submitted to European Academy of Allergology and Clinical Immunology.

Gomes, C., Freihaut, J., Bahnfleth, W., Resuspension of allergen-containing particles under mechanical and aerodynamic disturbances from human walking. Paper submitted to Atmospheric Environment peer-to-peer review.

Gomes, C., J. Freihaut and William Bahnfleth. (2005). Resuspension of allergen-containing particles under mechanical and aerodynamic isturbances from human walking - Introduction to an experimental controlled methodology. Accepted by the 10th International Conference on Indoor Air Quality and Climate, Beijing, China.

Hu, B., J. D. Freihaut, William Bahnfleth, C. Gomes and B. Thran. (2005).
Literature review and parametric study: indoor particle resuspension by human activity. Proceedings of the 10th International Conference on Indoor Air Quality and Climate, Beijing, China.

Hu, B., J. D. Freihaut, W. P. Bahnfleth and B. Thran. (2006). Simulating transient particle deposition/re-suspension in indoor environments. Abstract accepted by the 3rd International Building Physics/Science Conference.

Kowalski, W.J. (2005). "Building Protection Factor Calculator." The Indoor Environment Center, Penn State Architectural Engineering Department.

Messner, J., Riley, D. and Moeck, M., “Virtual Facility Prototyping for Sustainable Project Delivery,” submitted to the Electronic Journal of Information Technology in Construction (ITCON), special issue on eConstruction Role in Supporting Sustainability, submitted May 2005, accepted pending minor revisions.

Moeck, M., Yoon,* Y., Bahnfleth, W. and Mistrick, R., “How Much Energy Do Different Toplighting Strategies Save?,” submitted to Journal of Architectural Engineering, Feb. 2006.

Moeck, M. and Yoon,* Y-J., “Green Buildings and Potential Electric Light Energy Savings,” Journal of Architectural Engineering, December 2004, Vol. 10 (4), pp. 143-159.

Patel, P., Nimraj, L., Ramoutar, A., Sauve, H., Chapman, M., Freihaut, J., Salapatek, A., Development of an environmental exposure chamber for the study of asthma using milled dust mite particles. Abstract submitted to European Academy of Allergology and Clinical Immunology.

Riley, D., J. Freihaut, W. Bahnfleth and Z. Karapetyan. 2004. Indoor air quality management and infection control in health care facility construction. Proceedings of the CIB World Building Conference 2004.

Song, J., W. Bahnfleth, and J. Cimbala. 2004. Parametric study of single-pipe diffusers in stratified chilled water storage tanks. International Journal of HVAC&R Research: 10(3):345-365.

Yoon, Y., Moeck, M., Bahnfleth, B, and Mistrick, R.: “Optimal Daylight Factor for Energy-Efficient Toplighting System," TECH-00213-2005.R1, ASHRAE Transactions, 2006, to be published.

Articles:

Martin, S., C. Dunn, J. Freihaut, W. Bahnfleth, J. Lau, A. Nedeljkovic-Davidovic.  2008.  Ultraviolet germicidal irradiation: current best practices.  ASHRAE Journal 50(8): 28-36.

Hu, B., J. Freihaut, W. Bahnfleth, and B. Thran.  2008.  Measurements and factorial analysis of micron-sized particle adhesion force to indoor flooring materials by electrostatic detachment method.  Aerosol Science and Technology 42(7):513-520.

Jeong, J.W., J. Firrantello, W. Bahnfleth, J. Freihaut, A. Musser.  2008.  Case studies of building envelope leakage measurement using an air-handler fan pressurization approach.  Building Services Engineering Research and Technology 29(2):137-155.

Jeong, J.-W., J. Firrantello, J. Freihaut, W. Bahnfleth, A. Musser.  2008.  Feasibility of wireless measurements for semi-empirical multizone airflow model tuning.  Building and Environment 43(0):1507-1520. 

Gomes, C., J. Freihaut, and W. Bahnfleth.  2007.  Resuspension of allergen-containing particles under mechanical and aerodynamic disturbances from human walking.  Atmospheric Environment 41:5257-5270.

Hu, B., J. Freihaut, W. Bahnfleth, P. Aumpansub, B. Thran.  2007.  Modeling the influence of human activity on particle resuspension and dispersion in a multizone indoor environment with HVAC system.  ASCE Journal of Architectural Engineering 13(4):187-193.

Firrantello, J., P Aumpansub, W. Bahnfleth, B. Hu, J. Freihaut, B. Thran, S. Hutchens.  2007.  Effects of HVAC system and building characteristics on exposure of occupants to short duration point source aerosol releases.  ASCE Journal of Architectural Engineering 13(2):84-94.

Reddy, T. A. and W. Bahnfleth.  2007.  Requirements for a probabilistic risk-based decision methodology for reducing vulnerability of building occupants to extreme IAQ events.  ASHRAE Transactions 113(1): 281-295.

Firrantello, J., W. Bahnfleth, A. Musser, J. Freihaut, J.-W. Jeong.  2007.  Use of factorial sensitivity analysis in multizone airflow model tuning.  ASHRAE Transactions 113(1): 642-651. paper received a 2007 ASHRAE Technical and Symposium Paper Award and J. Firrantello was awarded the 2007 Willis H. Carrier Award for "the best published paper of outstanding quality presented at a Society meeting by a member of any grade who was 32 years of age or less at the time of presentation of the paper."

Bahnfleth, W. and E. Peyer.  2006.  Energy use and economic comparison of chilled water pumping alternatives.  ASHRAE Transactions 112(2): 198-208.

Yoon, Y-J, M. Moeck, R. Mistrick, and W. Bahnfleth.  2006.  Optimal daylight factor for energy-efficient toplighting system.  ASHRAE Transactions 112(2): 622-632.  (Contributing author)

Hitchcock, P., M. Mair, T. Inglesby, J. Gross, D. Henderson, T. O’toole, J. Ahern-Seronde, W. Bahnfleth, T. Brennan, H. Burroughs, C. Davidson, W. Delp, D. Ensor, R Gomory, P. Olsiewski, J. Samet, W. Smith, A. Streifel, R. White, and J. Woods.  2006.  Reducing exposure to aerosolized infectious agents in a building; recommendations of the Working Group on HVAC Systems to Reduce Risks Posed by Biological Attacks.  Biosecurity and Bioterrorism: Biodefense Strategy, Practice, And Science  4(1): pp. 1-15.

Bahnfleth, W. and J. Song.  2005.  Constant flow rate charging characteristics of a full-scale stratified chilled water storage tank with double-ring slotted pipe diffusers.  Applied Thermal Engineering: 25(17-18): 3067-3082. (Equal contributions)

Song, J., W. Bahnfleth, and J. Cimbala.  2004.  Parametric study of single-pipe diffusers in stratified chilled water storage tanks (1185-RP).  International Journal of HVAC&R Research 10(3):345-365. (First author supervised by candidate)

Bahnfleth, W. 2004. Reducing the vulnerability of buildings to airborne threats: a review of recent guidance documents. Homeland Security for Buildings. Supplement to HPAC Engineering. Web published, March 2004.

Bahnfleth, W. and E. Peyer. 2004. Varying views on variable flow chilled water systems. HPAC Engineering 76(3) S5-S9.

Bahnfleth, W., J. Song  and J. Cimbala.  2003.  Measured and modeled charging of a stratified chilled water thermal storage tank with slotted pipe diffusers.  International Journal of HVAC&R Research 9(4):467-491.

Kowalski, W., W. Bahnfleth and W. Rosenberger.  2003.  Dimensional analysis of UVGI air disinfection systems.  International Journal of HVAC&R Research 9(3):347-362. (First author supervised by candidate)

Jeong, J.-W., S. Mumma and W. Bahnfleth.  2003.  Energy conservation benefits of a dedicated outdoor air system with parallel sensible cooling by ceiling radiant panels.  ASHRAE Transactions 109(2):627-636 (First author supervised by candidate).

Kowalski, W., W. Bahnfleth and A. Musser.  2003.  Modeling bioterrorism defense systems in a commercial office building.  ASCE Journal of Architectural Engineering 9(2):86-96. (Contributing author)

Kowalski, W., W. Bahnfleth, B. Striebig and T. Whittam.  2003.  Demonstration of a hermetic airborne ozone disinfection system: studies on e. coli.  American Industrial Hygiene Association Journal 64:222-227.

Kowalski, W. and W. Bahnfleth. 2003. Immune building technology and bioterrorism defense. HPAC Engineering 75(1): 57-62.