People

Jan Kośny, Ph.D.

Director, Building Enclosures and Materials
Expertise:
  • Building Physics
  • Building Materials
  • Passive Solar Buildings, BIPV
  • Building Integrated Solar Technologies
  • Heat Storage Technologies and Thermal Mass
  • Thermal Insulation Systems
  • Heat Transfer in Buildings
  • Numerical Analysis of Building Energy Performance
  • Building Durability

Dr. Jan Kośny leads Fraunhofer CSE’s Building Enclosures & Materials group. Jan is a civil engineer with 35 years of experience in building science. He specializes in analyzing the energy performance of buildings and development of novel building envelope materials and systems, thermal insulation and radiation control technologies, thermal storage, and building integrated solar technologies.

Prior to joining Fraunhofer in 2010, Jan spent 12 years teaching building science as a professor of the Rzeszow Technical University, Poland, and 18 years at Oak Ridge National Laboratory. He has published over 150 technical articles, 200 reports, and numerous patents related to advanced building concepts. During his work for Fraunhofer CSE, Jan has led several research projects focused on development of low-flammable plastic foams, nanoporous insulations, and PCM-enhanced building products.

Jan received his Ph.D. in Civil Engineering from the Institute of Fundamental Technological Research, Polish Academy of Sciences in Warsaw, Poland. He is a member of ASHRAE TC 4.4 on Building Materials and Building Envelope Performance, TC 2.8 on Building Environmental Impacts and Sustainability, and TC 4.7 on Energy Calculations. He has represented the United States at many international organizations and standards bodies including Annex 24/42 (Compact Thermal Storage, Solar Heating and Cooling) and Annex 23 (Applying Energy Storage in Buildings of the Future) of the International Energy Agency. In 2018, Jan was appointed by the Fulbright Foundation World Learning Program as a Fulbright specialist.

Recent Presentations and Publications

Shukla, N., Watts, A., Honeker, C., Hill, M., Kosny, J. (2018).
Thermal impact of adhesive-mounted rooftop PV on underlying roof shingles. In: Solar Energy. 174: Elsevier Ltd., pp. 957-966.
Adhesive mounting of residential rooftop photovoltaics (PV) is an alternative to traditional rack mounting that reduces...
Kosny, J. - June 20, 2018
New Generation of Bio-Based, Non-Corrosive Phenolic Foams. VII Konferencja Solina 2018, Rzeszow University of Technology, Faculty of Civil and Environmental Engineering and Architecture. Dom Wypoczynkowy Atrium, Polanczyk, Poland.
Dr. Jan Koś›ny is keynote speaker, session chair (session 7) and contributor on research in aerogels and PCMs.
Kosny, J. - June 20, 2018
Nowa generacja aerogeli i pianek izolacyjnych wyzwania technologiczne i ogromne nowe możliwoś›ci. VII Konferencja Solina 2018, Rzeszow University of Technology, Faculty of Civil and Environmental Engineering and Architecture. Dom Wypoczynkowy Atrium, Polanczyk, Poland.
Dr. Jan Koś›ny is keynote speaker, session chair (session 7) and contributor on research in aerogels and PCMs.
Kosny, J. - May 9, 2018
Numerical and Experimental Analysis of Thermal Performance of Residential Attics Containing Aerogel-based Radiant Barrier Systems. 2018 RIMA International Conference, Reflective Insulation Manufacturers Association International (RIMA). Marriott Los Sueňos Resort, Puntarenas, Costa Rica.
Jan Kośny is a keynote speaker.
Czlonka, S., Bertino, M.F., Kosny, J., Strakowska, A., Maslowski, M., Strzelec, K. (2018).
Linseed oil as a natural modifier of rigid polyurethane foams. In: Industrial Crops and Products. 115: Elsevier B.V., pp. 40-51.
Fontanini, A.D., Castro Aguilar, J.L., Mitchell, M.S., Kosny, J., Merket, N., DeGraw, J.W., et al. (2018).
Alexiades, V., Kosny, J. (2017).
Chapter 3, Heat and Mass Transfer, Section 3.4.3: Phase Change Materials, Melting and Freezing. In: CRC Handbook of Thermal Engineering. 2nd ED New York: CRC Press, Taylor & Francis Group, pp. 393 - 416.
Kosny, J., Yarbrough, D. (2017).
Chapter 4, Applications, Section 4.9 Use of Phase Change Materials in Buildings. In: CRC Handbook of Thermal Engineering. 2nd ED New York: CRC Press, Taylor & Francis Group, pp. 781-799.
Kosny, J., Yarbrough, D. (2017).
Chapter 4, Applications, Section 4.10 Thermal Bridges in Building Structures. In: CRC Handbook of Thermal Engineering. 2nd ED New York: CRC Press, Taylor & Francis Group, pp. 800-817.
Kosny, J., Fontanini, A., Shukla, N., Fallahi, A., Watts, A., Trifu, R., et al. (2017).
This paper is focused on a new, easy to install, extremely light weight, and high R-value radiant barrier that shows...
Castro Aguilar, J.L., Shukla, N., Kosny, J. - September 20, 2017
Kosny, J. - January 17, 2017
White, L.S., Echard, D.R., Bertino, M.F., Gao, X., Donthula, S., Leventis, N., et al. (2017).
Fabrication of Native Silica, Cross-Linked, and Hybrid Aerogel Monoliths with Customized Geometries. In: Translational Materials Research. 3(1), 15002.
Kosny, J. - December 4, 2016
Fraunhofer CSE's Building Enclosures expert Dr. Jan Kosny is hosting Thermal Mass Workshop V on current research and...
Shukla, N., Watts, A., Kosny, J. (2016).
Field Demonstration of Superior Performance of Advanced Building Technologies. In: Thermal Performance of the Exterior Envelopes of Whole Buildings XIII International Conference. Clearwater: ASHRAE.
Shukla, N., Watts, A., Honeker, C., Kosny, J. (2016).
Hygrothermal Impact of Adhesive-applied Rooftop PV. ASTM C16 Special Technical Paper (STP) 1599. In: Symposium on Advances in Hygrothermal Performance of Building Envelopes: Materials, Systems and Simulations. Orlando: ASTM.
Fontanini, A.D., Kosny, J., Shukla, N., Fallahi, A., Ganapathysubramanian, B. (2016).
Development and verification of the Fraunhofer Attic Thermal Model (FATM). . In: Building Performance Simulation. 10(1), pp. 72-90.
DOI: 10.1080/19401493.2015.1134669.
Fontanini, A.D., Pr'Out, K.M., Ganapathysubramanian, B., Kosny, J. (2016).
Shukla, N., Watts, A., Honeker, C., Kosny, J. (2015).
Thermal Impact of Adhesive-applied PV Roof. In: 4th International Renewable Energy and Environment Conference, IREEC-2015. Prague.
Urban, B., Shukla, N., Fontanini, A., Kosny, J. (2015).
Measuring Field Performance of Aerogel Insulation in a Hot, Dry Climate. In: BEST4 Conference on Building Enclosure Science and Technology. Kansas City: National Institute of Building Sciences, pp. 1-10.
Biswas, K., Shukla, N., Kosny, J., Abhari, R. (2015).
Low-Cost Bio-Based Phase Change Materials as an Energy Storage Medium in Building Envelopes. In: BEST4 Conference on Building Enclosure Science and Technology. Kansas City: National Institute of Building Sciences, pp. 1-12.
Fallahi, A., Shukla, N., Fontanini, A., Carbary, L., Serino, R., Kosny, J. (2015).
Field Performance Study of EIFS System Using Vacuum Insulation Panels. In: BEST4 Conference on Building Enclosure Science and Technology. Kansas City, pp. 1-26.
Shukla, N., Elliott, D., Urban, B., Kosny, J. - April 12, 2015
Thermal and Energy Performance of Aerated Autoclaved Concrete (AAC). BEST4 Conference on Building Enclosure Science and Technology, National Institute of Building Sciences; Building Enclosure Council of Kansas City; BEC - National; Building Enclosure Technology and Environment Council . Westin Kansas City Hotel, Kansas City, MO.
Shukla, N., Kosny, J. (2015).
DHFMA Method for Dynamic Thermal Property Measurement of PCM-integrated Building Materials. In: Current Sustainable Renewable Energy Report - Built Environment. 2(2), pp. 41-46.
Urban, B., Shukla, N., Fontanini, A., Kosny, J. (2014).
An Outdoor Hut Testing Platform for Evaluating Advanced Building Enclosures. In: NSB Lund: NSB, pp. 135-143.
Shukla, N., Fallahi, A., Kosny, J. (2014).
Aerogel Thermal Insulation - Technology Review and Cost Study for Building Enclosure Applications. In: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Transactions 2014 120(1), New York: ASHRAE, pp. 294-307.
Kosny, J., Misiopecki, C., Fallahi, A., Shukla, N., DuPont, W., Carbary, L. (2014).
Thermal Design of Window-Wall Interface in Wall Energy Retrofits Using High-Performance Vacuum Insulation. In: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Transactions 2014 120(1), New York: ASHRAE, pp. 90-106.
Kosny, J., Fallahi, A., Shukla, N., Kossecka, E., Abhari, R. (2014).
Thermal Load Mitigation and Passive Cooling in Residential Attics Containing PCM-Enhanced Insulations. In: Solar Energy. 108, pp. 164-177.
Kosny, J., Asiz, A., Smith, I., Shrestha, S., Fallahi, A. (2014).
A Review of High R-value Wood Framed and Composite Wood Wall Technologies Using Advanced Insulation Techniques. In: Energy and Buildings. 72, pp. 441-456.
Shukla, N., Fallahi, A., Kosny, J. (2013).
VIP - Technology Review and Cost Study for Building Retrofits in Northern US Locations. In: Thermal Performance of the Exterior Envelopes of Whole Buildings XII International Conference. Clearwater Beach: ASHRAE, pp. 1-9.
Shukla, N., Kumar, D., Elliot, D., Kosny, J. (2014).
Moisture Content Measurements in Wood and Wood-based Materials - Advancements in Sensor Calibration and Low Moisture Content Regime. In: Next Generation Thermal Insulation Challenges and Opportunities. Selected Technical Papers STP1574. Jacksonville: ASTM, pp. 66-80.
Shukla, N., Cao, P., Kosny, J. (2014).
Lab-scale Dynamic Thermal Testing of PCM-enhanced Building Materials. In: Next Generation Thermal Insulation Challenges and Opportunities. Selected Technical Papers STP1574. Jacksonville: ASTM, pp. 142-154.
Urban, B., Elliott, D., Shukla, N., Fallahi, A., Kosny, J., McDonough, M. (2013).
Thermal Mass Effect of Solid Block Aerated Autoclaved Concrete. In: 2nd Central European Symposium on Building Physics. Vienna: CESBP, pp. 1-37.
Shukla, N., Elliott, D., Kumar, D., Misiopecki, C., Kosny, J. (2013).
Experimental Hygrothermal Study in Wood and Wood-based Materials. In: CESBP 2013, 2nd Central European Symposium on Building Physics. Vienna: CESBP, pp. 261-268.
Kosny, J., Kossecka, E. (2013).
Understanding a Potential for Application of Phase-Change Materials (PCMs) in Building Envelopes. In: ASHRAE 2013 Winter Conference. Dallas: ASHRAE Transactions, pp. 3-13.
Kosny, J., Fallahi, A., Shukla, N. (2013).
Fallahi, A., Durschlag, H., Elliot, D., Hartsough, J., Shukla, N., Kosny, J. (2013).
Kosny, J., Fallahi, A., Shukla, N. (2013).
Experimental and Numerical Energy Performance Analysis of PCM-enhanced Building Envelope Products and Systems. In: CESBP 2013, 2nd Central European Symposium on Building Physics. Vienna: CESBP, pp. 1-34.
Kosny, J., Fallahi, A., Shukla, N. (2013).
Cost Analysis of Simple Phase Change Material-Enhanced Building Envelopes in Southern U.S. Climates. In: U.S. Department of Energy EERE Building Technologies Program Technical Report. Golden: DOE BTO, pp. 1-74.
Misiopecki, C., Kosny, J., Fallahi, A., DuPont, W. (2013).
Optimization of Window Installations in Deep Energy Retrofits Using Vacuum Insulation Panels. In: CESBP 2013, 2nd Central European Symposium on Building Physics. Vienna: CESBP, pp. 1-16.
Fallahi, A., Shukla, N., Kosny, J. (2012).
Numerical Thermal Performance Analysis of PCMs Integrated with Residential Attics. In: SimBuild Conference IBPSA-USA. Madison: IBPSA, pp. 431-439.
Shukla, N., Fallahi, A., Kosny, J. (2012).
Performance Characterization of PCM Impregnated Gypsum Board for Building Applications. In: International Conference on Solar Heating and Cooling for Buildings and Industry. San Francisco: Energy Procedia, pp. 370-379.
Shukla, N., Fallahi, A., Kosny, J., Harasim, S., Blair, C. (2012).
Aerogel for Thermal Insulation of Interior Wall Retrofits in Cold Climates. In: BEST3 Conference on Building Enclosure Science and Technology. Atlanta: National Institute of Building Sciences, pp. 1-12.
Kossecka, E., Kosny, J., Yarbrough, D. (2012).
Energy Performance Analysis of Building Envelopes Utilizing Blown Fiber Insulation with Microencapsulated Phase Change Material (PCM). In: BEST3 Conference on Building Enclosure Science and Technology. Atlanta: National Institute of Building Sciences.
Kosny, J. (2012).
Highlights of U.S. Building Envelop Research During the Last Decade. In: BEST3 Conference on Building Enclosure Science and Technology. Atlanta: National Institute of Building Sciences.
Kosny, J., Biswas, K., Miller, W., Kriner, S. (2012).
Kosny, J., Kossecka, E., Brzezinski, A., Tleoubaev, A., Yarbrough, D. (2012).
Engelmann, P., Urban, B., Kosny, J. (2011).
New Developments in Mitigation of Thermal Bridges Generated by Light Gauge Steel Framing Components. In: NSB 2011, 9th Nordic Symposium on Building Physics. Tampere: NBS, pp. 1-8.
Urban, B., Engelmann, P., Urban, B., Engelmann, P., Kossecka, E., Kosny, J. (2011).
Arranging Insulation for Better Thermal Resistance in Concrete and Masonry Wall Systems. In: NSB 2011, 9th Nordic Symposium on Building Physics. Tampere: NBS, pp. 1-8.
Kosny, J., Brown, D., Kriner, S., Horvath, P., Yuan, S., Biswas, K., et al. (2010).
Kosny, J. (2010).

Contact

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Jan Kośny, Ph.D.
Director, Building Enclosures and Materials
Office +1 (617) 714-6525
Email