Prof. Dr. Andreas Witzig

Personal profile

Management role

Director of Institute, ICP Institute of Computational Physics

Position at the ZHAW

www.zhaw.ch/icp

Expertise and research interests

Building simulation (https://www.zhaw.ch/en/engineering/institutes-centres/icp-institute-of-computational-physics/building-simulation/)
Simulation software Polysun
Simulation of optoelectronic devices
Photonics

Educational background

HSG Diploma Technology-Entrepreneur, Executive School, Uni St. Gallen
Academic guest at the University of California, Santa Barbara
PhD at ETH Zurich (ETH-Medal)
Diploma in Electrical Engineering, ETH Zürich
ERASMUS exchange program, Universität Bristol, England

Professional milestones

Vela Solaris AG (Founder, CEO, President of the board)
Synopsys Inc. (product manager optoelektronics)
ISE Integrated Systems Engineering (product manager optoelektronics)
Integrated Systems Laboratory, ETH Zurich (scientific research staff)

Membership of networks

• Gebäudesimulation Schweiz
• Strategic Management IBH-Lab "Seamless Learning"
• Steering committee Eurosun 2018
• IEA Task 53, new generation solar cooling and heating
• Scientific committee EuroSun 2010
• Scientific committee CLEO-EQEC
• Scientific committee NUSOD 2001-2005

Projects

• Building Simulation Switzerland Business Administration / Project leader / Project ongoing
• Effizienzpotenzial eines Ersatzes des Wärmeabgabesystem hinsichtlich der Versorgungssicherheit (EFFIWAG) / Project co-leader / Project ongoing
• User Assistance Systems for Smart Commercial Buildings / Team member / Project ongoing
• Digital Services from the Building Cloud / Project leader / Project completed
• Digitally assisted intelligent retrofitting of office buildings / Project leader / Project completed
• One-Click energy simulation for architects / Project leader / Project completed
• IBH Lab Seamless Learning / Team member / Project completed
• Software for the thermohydraulic design of solar systems / Project co-leader / Project completed

Publications

• Zhao, Yaohua; Wang, Yubo; Quan, Zhenhua; Wang, Lincheng; Witzig, Andreas,

  2022.

  Performance and optimisation of a novel phase change thermal storage device.

  Journal of Energy Storage.

  52(105076).

  Available from: https://doi.org/10.1016/j.est.2022.105076

• Witzig, Andreas,

  2022.

  Einzelprojekt „Wellen“

  .

  In:

  Dilger, Bernadette; Erlemann, Jennifer; Müller, Claude; Rapp, Christian, eds.,

  Seamless Learning.

  Wiesbaden:

  Springer.

  pp. 93-121.

  Available from: https://doi.org/10.1007/978-3-658-34698-0_4

• Pickhardt, Carola; Fuchs, Hans Ulrich; Dumont, Elisabeth; Hügel, Katrin; Witzig, Andreas,

  2022.

  Modellieren, Visualisieren und die Simulation dynamischer Systeme als Seamless Learning : ein Beitrag zu diesem Prozess aus der Praxis am Beispiel eines Mathematikmoduls

  .

  In:

  Dilger, Bernadette; Erlemann, Jennifer; Müller Werder, Claude; Rapp, Christian, eds.,

  Seamless Learning.

  Wiesbaden:

  Springer.

  pp. 35-63.

  Available from: https://doi.org/10.1007/978-3-658-34698-0_2

• Wolf, Andreas; Witzig, Andreas; Moreno, Daniel,

  2019.

  Cross-border education in the field of renewable energies using a dynamic simulation software [paper].

  In:

  Sayigh, Ali, ed.,

  Renewable energy and sustainable buildings : selected papers from the World Renewable Energy Congress WREC 2018.

  World Renewable Energy Congress, London, 30 July to 3 August 2018.

  Cham:

  Springer.

  pp. 771-778.

  Innovative Renewable Energy.

  Available from: https://doi.org/10.1007/978-3-030-18488-9_63

• Jakobi, Marc; Kunath, Lars; Stöckli, Urs; Witzig, Andreas,

  2018.

  BIM use-case : model-based performance optimization [paper].

  In:

  EuroSun 2018 Conference Proceedings.

  12th International Conference on Solar Energy and Buildings (EuroSun 2018), Rapperswil, 10-13 September 2018.

  International Solar Energy Society.

  Available from: https://doi.org/10.18086/eurosun2018.11.07

• Witzig, Andreas; Borth, S.; Danesi, Serena,

  2018.

  Understanding the dynamics of solar energy systems by using simulation narratives [paper].

  In:

  Proceedings of the 12th International Conference on Solar Energy for Buildings and Industry (EuroSun2018).

  12th International Conference on Solar Energy and Buildings (EuroSun 2018), Rapperswil, 10-13 September 2018.

  Freiburg:

  International Solar Energy Society.

  Available from: https://doi.org/10.18086/eurosun2018.07.01

• Eismann, Ralph; Föller, Fiona; Witzig, Andreas,

  2017.

  THD : Thermohydraulisches Dimensionierungsprogramm für Solaranlagen [paper].

  In:

  Tagungsband des 27. Symposium Thermische Solarenergie.

  27. Symposium Thermische Solarenergie, Bad Staffelstein, Deutschland, 10.-12. Mai 2017.

  Ostbayerisches Technologie-Transfer-Institut.

• Witzig, Andreas; Krieg, Jürg; Kunath, Lars; Sotnikov, Artem,

  2016.

  Kollektorerträge und Passivsolargewinne : Systemsimulation mit Mehrzonen-Gebäudesimulation [paper].

  In:

  26. Symposium Thermische Solarenergie : 20. bis 22. April 2016, Kloster Banz, Bad Staffelstein.

  26. Symposium Thermische Solarenergie, Bad Staffelstein, Deutschland, 20.-22. April 2016.

  Regensburg:

  Ostbayerisches Technologie-Transfer-Institut.

• Witzig, Andreas; Kunath, Lars, eds.,

  2016.

  SIGES Internationale Konferenz zur Simulation gebäudetechnischer Energiesysteme : Sammelband der Konferenzbeiträge.

  1. Internationale Konferenz zur Simulation gebäudetechnischer Energiesysteme, SIGES 2016, Winterthur, 8.-9. September 2016.

  Winterthur:

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  .

• Witzig, Andreas,

  2022.

  Gebäudesimulation : Trends und Ausblick.

  Faktor Themenheft "Simulation".

  (57), pp. 22-23.

  Available from: https://faktor.ch/produkt/themenheft-57-simulation/

• Eismann, Ralph; Witzig, Andreas,

  2017.

  Programm THD : Thermohydraulisches Dimensionierungsprogramm für Solaranlagen.

  Bundesamt für Energie.

• Wolf, Andreas; Gähler, Conrad; Witzig, Andreas,

  2017.

  Solar-Controller optimieren mit Simulink-Polysun Cosimulation [paper].

  In:

  27. Symposium Thermische Solarenergie, Bad Staffelstein, Deutschland, 10.-12. Mai 2017.

• Sotnikov, Artem; Witzig, Andreas,

  2016.

  Building simulations in Polysun [paper].

  In:

  1. Internationale Konferenz zur Simulation gebäudetechnischer Energiesysteme (SIGES 2016), Winterthur, 8.-9. September 2016.

• Witzig, Andreas; Meier, Luc; Kunath, Lars; Wagner, Stefan,

  2016.

  Integrale Planung mit 3D Dachplaner, Stückliste, Batteriespeicher, Power-to-Heat [paper].

  In:

  31. Symposium Photovoltaische Solarenergie, Bad Staffelstein, Deutschland, 8.-10. März 2016.

• Witzig, Andreas; Kunath, Lars,

  2016.

  Polysun simulation software in teaching and research at various academic institutions in Switzerland [paper].

  In:

  SIGES 2016 Conference, Winterthur, 8-9 September 2016.

• Wolf, Andreas; Jiankun, Zhu; Prandini, Markus; Witzig, Andreas,

  2016.

  Renewable energy training and certificate program in China [paper].

  In:

  1. Internationale Konferenz zur Simulation gebäudetechnischer Energiesysteme (SIGES 2016), Winterthur, 8.-9. September 2016.

• Witzig, Andreas; Wolf, Andreas; Kunath, Lars; Prandini, Markus,

  2016.

  Teaching renewable energy systems by use of simulation software : experience at universities of applied sciences, in in-service training, and from international know-how transfer [paper].

  In:

  EuroSun 2016 Conference Proceedings International Solar Energy Society (ISES) European Solar Conference Proceedings International Conference on Solar Heating & Cooling in Buildings.

  EuroSun 2016: International Conference on Solar Energy and Buildings, Palma de Mallorca, Spain, 11-14 October 2016.

  Freiburg:

  International Solar Energy Society.

  pp. 1591-1600.

  Available from: https://doi.org/10.18086/eurosun.2016.10.03

• Witzig, Andreas,

  2014.

  Energiekonzepte der Zukunft : Werkzeuge für den Planungsprozess.

  In:

  Schweizerischer Ingenieur- und Architektenverein (SIA) - Jahrestagung der Berufsgruppe Technik, Muttenz, 23. September 2014.

Publications before appointment at the ZHAW

1. E. Vrettos, A. Witzig, R. Kurmann, S. Koch, and G. Andersson, Maximizing local PV utilization using small-scale batteries and flexible thermal loads, European PV Solar Energy Conference and Exhibition (PVSEC), Paris, France, September 2013.

2. R. Bornatico, J. Hüssy, A. Witzig, L. Guzzella, Surrogate modeling of the fast optimization of energy systems, Elsevier journal Energy, vol. 57, June 2013

3. R. Bornatico, M. Pfeiffer, A. Witzig, L. Guzzella, Optimal sizing of a solar thermal building installation using particle swarm optimization, Elsevier journal Energy, vol. 41, issue 1, May 2012

4. A. Witzig, Kombination Solar und Wärmepumpen, Innovative Konzepte in der dezentralen Energieproduktion, Energiepraxis-Bulletin der Ostschweizer Energiefachstellen, Zürich, Oktober 2011

5. A. Witzig, Advances in Optical Device Simulation Software, Photonics Spectra, November 2004

6. A. Witzig, Modeling the Optical Processes in Semiconductor Lasers, PhD Thesis, ETH-Nr. 14694, ISBN 3-89649-803-1, Hartung-Gorre Verlag, Konstanz, 2002

7. B. Witzigmann, A. Witzig, W. Fichtner, A Multidimensional Laser Simulator for Edge-Emitters Includ¬ing Quantum Carrier Capture, IEEE Transactions on Electron Devices, vol. 47, issue 10, October 2000

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