Publications

Published publications of the Institute for Energy Systems IES:

Journal

2020:

2019:

2018:

2017:

2016:

2015:

2012:

2009:

2008:

2003:

  • Ehrbar, M., Bertsch S.S., and Hubacher, P., 2003, Verbessertes Abtauen, HK-HeizungKlimaKaelte (1/2003), pp. 58-63.

2021:

  • Bless, F.; Arpagaus, C.; Bertsch, S.: Theoretical Investigation of High-Temperature Heat Pump Cycles for Steam Generation, 13th IEA Heat Pump Conference, 11-14 May 2020, Jeju, Korea, accpeted for presentation, postponed to 26 -29 April 2021.
  • Arpagaus, C., Bertsch, S.S.: Experimental Comparison of R1224yd(Z) and R1233zd(E) in a High Temperature Heat Pump, 13th IEA Heat Pump Conference, May 11-14, 2020 Jeju, Korea, accpeted for presentation, postponed to 26 -29 April 2021.
  • Arpagaus, C.; Bertsch, S.: Experimental Comparison of HCFO and HFO R1224yd(Z), R1233zd(E), R1336mzz(Z), and HFC R245fa in a High Temperature Heat Pump up to 150 °C Supply Temperature, 18th International Refrigeration and Air Conditioning Conference at Purdue, 13-16 July 2020, accepted for presentation, postponed to 23-27 May 2021.

2020:

2019:

2018:

2017:

2016:

2015:

  • Seitz Ch.; Uhlmann, M.; Bertsch, S.; 2015;  AirModul All-In-One: Kombiniertes Lüftungs- und Wärmepumpensystem mit hoher Energieeffizienz. 21. Wärmepumpentagung vom 17. Juni 2015, BFE-Forschungsprogramm «Wärmepumpen und Kälte», Burgdorf (CH).
  • Ozan Gulbudak, Janosch Marquart, Enrico Santi, “FPGA-based Model Predictive Current Controller for 3x3 Direct Matrix Converter”, IEEE-APEC Applied Power Electronics Conference and Exposition, 2015 Record
  • Simon Nigsch, Kurt Schenk, Slobodan Cuk, “Analysis, Modeling and Design of a True Bridgeless Single Stage PFC with Galvanic Isolation”, IEEE-APEC Applied Power Electronics Conference and Exposition, 2015 Record

2014:

  • Caskey S.L., Kultgen D., Gschwend A., Groll E.A., Hutzel W.J., Bertsch S., 2014, Cold climate field test of an air-source heat pump with two-stage compression and economizing, Keynote/Session 4, 11th IEA Heat Pump Conference 2014, May 12-16 2014, Montréal (Québec) Canada.
  • Liebold A., Gstoehl D., Oppliger D., Bertsch S., 2014, Fluidglass - Façade Elements for Active Solar Control for High-Rise Buildings, Paper no 3259, 3rd International High Performance Buildings Conference at Purdue, July 14-17, 2014.
  • Uhlmann M., Heldstab A., Bertsch S., 2014, OptiRef: Heat Pump with Two Heat Sources at Different Temperature Levels, Paper no 2142, 15th International Refrigeration and Air Conditioning Conference at Purdue, July 14-17, 2014.
  • Sattler M., Markstaler M., Haller M., Sigrist D., Kessler S., Bertsch S., 2014, Technologievergleich solare Brauchwarmwassererwärmung - Photovoltaik und Wärmepumpe im Vergleich mit Solarthermie, 18. Brenet Status-Seminar «Forschen für den Bau im Kontext von Energie und Umwelt», Zürich.
  • Raffael Haldi and Kurt Schenk, “A 3.5kW Wireless Charger for Electric Vehicles with Ultra High Efficiency”, IEEE-ECCE Energy Conversion Congress and Exposition, 2014 Record
  • Ozan Gulbudak, Enrico Santi, Janosch Marquart, “Finite State Model Predictive Control for 3x3 Matrix Converter Based on Switching State Elimination”, IEEE-ECCE Energy Conversion Congress and Exposition, 2014 Record

2013:

  • Menzi, T., Caskey, S., Kultgen, D., Groll, E., Hutzel, W., and Bertsch, S.,2013, Annual simulation results of a two-stage heat pump for cooling and heating applications, CLIMA 2013 - 11th REHVA World Congress & 8th International Conference on IAQVEC in Prague. Paper ID: 174.
  • Tobias Schmid and Alexandr. Ikriannikov, “Magnetically Coupled Buck Converters”; IEEE-ECCE Energy Conversion Congress and Exposition, 2013 Record
  • Andrzej Pietkiewicz, Kurt Schenk, Tobias Gnos and Martin Bünner, “Novel Inductive Current Splitter/Merger for Low Harmonics Three-Phase Rectifier”, PCIM Europe International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2013 Record
  • Raffael Haldi, Isaac Nam, Kurt Schenk and Enrico Santi, “Finite-Element-Simulation-Assisted Optimized Design of an Asymmetrical High-Power Inductive Coupler with a Large Air Gap for EV Charging”, IEEE-ECCE Energy Conversion Congress and Exposition, 2013 Record
  • Kurt Schenk and Andrzej Pietkiewicz, “Novel Low Harmonic Rectifier Using 12-pulse Inductive Current Splitter/Merger”, IEEE-APEC Applied Power Electronics Conference and Exposition, 2013 Record

2012:

  • S. Bertsch, B. Vetsch, A. Gschwend, 2012, Optimierte Warmwasser-Produktion mit Wärmepumpen, 18. Wärmepumpentagung, BFE-Forschungsprogramm Wärmepumpen, Wärme-Kraft-Kopplung, Kälte, Burgdorf.
  • S. L. Caskey, D. Kultgen, T. Menzi, E. A. Groll, W. J. Hutzel, S. S. Bertsch, 2012, Simulation of Novel Air-Source Heat Pump with Two-Stage Compression and Economizing for Cold Climate Field Tests, 7th International Cold Climate HVAC Conference, Alberta, Canada.
  • S. Caskey, S. Deng, D. Kultgen, T. Menzi, E.A. Groll, W. Hutzel, S. Bertsch, 2012, Field Test Simulation of an Air-Source Heat Pump with Two-Stage Compression and Economizing For Cold Climates,14th International Refrigeration and Air Conditioning Conference at Purdue, USA.
  • S. Caskey, D. Kultgen, E. Groll, W. Hutzel, T. Menzi, S.Bertsch, 2012, Simulation of an Air-Source Heat Pump with Two-Stage Compression and Economizing for Cold Climate Field Tests,14th International Refrigeration and Air Conditioning Conference at Purdue, USA.
  • A. Gschwend and S. Bertsch, 2012, Domestic Heat Pump System with Solar Thermal Collectors as Heat Source and Annual Ice Storage, 14th International Refrigeration and Air Conditioning Conference at Purdue, USA.
  • B. Vetsch, A. Gschwend and S. Bertsch, 2012, Domestic Hot Water Supply for Multiple Family Dwellings Using Heat Pumps, 14th International Refrigeration and Air Conditioning Conference at Purdue, USA.
  • S. Bertsch, 2012, Warmwasserbereitstellung mittels Wärmepumpen in Mehrfamilienhäusern, TWK Wärmepumpen Symposium, Karlsruhe. 
  • D. Oppliger, T. Menzi, S. Bertsch, D. Gstöhl, 2012, Fluidglas: Flüssigkeitsdurchströmte Glasfassade zur aktiven Kontrolle der Energieflüsse in der Fassade, 17. Status Seminar brenet, Zurich
  • B. Vetsch, A. Gschwend, S. Bertsch, 2012 Warmwasserbereitstellung mittels Wärmepumpen in Mehrfamilienhäusern, 17. Status Seminar brenet, Zurich
  • Stephen L. Caskey, Derek Kultgen, Tobias Menzi, E. A. Groll, W. J. Hutzel, S. S. Bertsch, 2012, Simulation of Novel Air-Source Heat Pump with Two-Stage Compression and Economizing for Cold Climate Field Tests, 7th International Cold Climate HVAC Conference, Alberta, Canada.
  • Kurt Schenk and Andrzej Pietkiewicz, “Low Harmonic Rectifier Using 12-pulse Current/Splitter Merger”, PCIM Europe International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2012 Record

2011:

  • Gstoehl, D., Stopper, J., Bertsch, S., and Schwarz, D., 2011, Fluidised glass façade elements for an active energy transmission control, ENERGY FORUM on Solar Building Skins 06‐07 December 2011, Bressanone, Italy.
  • Gstoehl, D., Stopper, J., Bertsch, S., and Schwarz, D., 2011, Fluidised glass façade elements for an active energy transmission control, World Engineers’ Convention, Geneva 2011.
  • Vetsch, B., Gschwend, A., and Bertsch, S.S., 2011, Zirkulationsverluste in Warmwasseranlagen, 17. UAW-Meeting in Burgdorf, CH.
  • Uhlmann, M, Bertsch, S.S., 2011, Dynamic Modeling of Heat Pumps, 10th IEA Heat Pump Conference, Paper #18.

2010:

2009:

  • Uhlmann, M, Bertsch, S.S., 2009, Dynamische Simulation einer Wärmepumpe, 15. UAW-Meeting in Burgdorf, CH.

2008:

2007:

  • Bertsch, S.S., Groll, E.A., and Garimella, S.V., 2007, Measurements of Flow Boiling Heat Transfer Coefficients in a Mini-Channel Evaporator for Electronics Cooling, ASHRAE Winter Meeting, Dallas, TX.
  • Bertsch, S.S. and Groll, E.A., 2007, Experimental performance of a two-stage unitary heat pump with economizing for northern U.S. climates, ASHRAE Winter Meeting, Dallas, TX.
  • Bertsch, S.S., Groll, E.A., and Garimella, S.V., 2007, Experimental investigation of local heat transfer coefficient for refrigerant flow boiling in microchannel cold plate evaporators, 22nd IIR International Congress of Refrigeration, Beijing, China.
  • Bertsch, S.S., Groll, E.A., and Garimella, S.V., 2007, Refrigerant flow boiling in a microchannel cold plate evaporator, IMAPS Advanced Technology Workshop on Thermal Management, San Jose, CA.

2006:

2005:

  • Bertsch, S.S., Groll, E.A., and Whitacre, K., 2005, Modeling of a CO2 Thermosyphon for a Ground Source Heat Pump Application, 8th International Energy Agency Heat Pump Conference, Las Vegas, NV.
  • Bertsch, S.S. and Groll, E.A., 2005, Air to Water Heat Pump for Low Temperature Climates, 8th International Energy Agency Heat Pump Conference, Las Vegas, NV.

2004:

  • Hubacher, B., Bertsch, S.S., and Groll, E.A., 2004, Status quo of carbon dioxide compressors, Deutsche Kaelte Klima Tagung.

2003:

  • Bertsch, S.S. and Ehrbar, M., 2003, Comparison of defrosting electricity consumption in the reverse cycle and the hot gas method, 21st IIR International Congress of Refrigeration, Washington, DC.
  • Ehrbar, M., Bertsch S.S., and Hubacher, P., 2003, Verbesserung des Abtauens bei luftbeaufschlagten Verdampfern, Phase 2, 10. UAW-Meeting in Burgdorf, CH.

2020:

2019:

2018:

2017:

2016:

2015:

2014:

2011:

2010:

2008:

  • Bertsch, S.S., 2008, Refrigerant flow boiling in microchannel evaporators, Ph.D. Thesis, Purdue University.

2005:

2002:

2020:

2019:

  • Arpagaus, C., Bless, F., Bertsch, S.S., Schiffmann, J.: Wärmepumpen für die Industrie: Eine aktuelle Übersicht, 25. Tagung des BFE-Forschungsprogramms "Wärmepumpen und Kälte", 26. Juni 2019, BFH Burgdorf (Vortrag).
  • Arpagaus, C.: Test Procedures on Heat Pump Water Heaters, IEA HPT Annex 46, 7th Working Meeting, May 16-17, 2019, Seoul, South Korea.
  • Arpagaus, C.: Industrial heat pump references in Switzerland – Examples (Task 1, first draft), IEA TCP HPT Annex 48 Meeting May 13-14, 2019, Tokyo, Japan.
  • Arpagaus, C.: Hochtemperatur-Wärmepumpen für industrielle Anwendungen4. Internationaler Grosswärmepumpen Kongress, 8. Mai 2019, Zürich.
  • Bertsch, S.: Wärmepumpen für Haushalt und Industrie, EnAW Gruppensitzung, 7.11.2019.
  • Bertsch, S.: Stromverbraucher Wärmepumpe: Past, Present, and Future,  ETG-Fachtagung Energiend der Zukunft, Electrosuisse, 14.5.2019.
  • Bertsch, S.: Welchen Betrag zur Energiewende können Wärmepumpen leisten?, Energietag Sevelen, 11.5.2019.
  • Bertsch, S.: Kurs «Wärmepumpen und Geothermie». Hochschule für Technik Rapperswil, Rapperswil (CH), 25.02.-27.05.2019.
  • Markstaler, M.: Potential thermischer Speicher durch Wärmepumpen und PV, 17. Nationale Photovoltaik-Tagung, Bern, 26.3.2019. 
  • Markstaler, M.: Mit Wärmepumpen den Eigenverbrauch erhöhen, Verein St. Galler Rheintal, 13.6.2019. 
  • Markstaler, M.: Bauen mit der Sonne, Idee-Suisse an der NTB, 14.11.2019.
  • Markstaler, M.: Entwicklung der Photovoltaik, SolarKirche Buechen-Staad, Evang. Kirchengemeinde Buechen, Thal, 22.11.2019.
  • Nigsch, S.: WPT - history, principle, challenges and state of the art, IEEE Seminar on WPT systems, Oct 28-29, 2019, Warsaw, Poland.

2018:

2017:

  • Bertsch S., 2017, Effiziente Abwärmenutzung für Prozesswärme und Dampf, Vortrag an der EnAW Fachtagung, Greiner Packaging AG, 14.11.2017.
  • Arpagaus C., Bless F., Schiffmann J., Bertsch S.S.: Hochtemperatur Wärmepumpen: Marktübersicht und Stand der Forschung, Deutsche Kälte- und Klimatagung (DKV), Arbeitsabteilung IV: Klimatechnik und Wärmepumpenanwendung, 23. Nov. 2017, Bremen, Deutschland (Kurzfassung).
  • Arpagaus C., Bless F., Schiffmann J., Bertsch S.S., Review on high temperature heat pumps - market overview and research status, European Heat Pump Summit, Oct 24-25, 2017, Nuremberg, Germany.
  • Arpagaus C., Bless F., Schiffmann J., Bertsch S.S., Review on high temperature heat pumps - market overview and research status, International Workshop on High Temperature Heat Pumps, Sept 11, 2017, Copenhagen, Denmark.
  • Bless, F.; Arpagaus, C.; Bertsch, S.; Schiffman, J.: Theoretical analysis of steam generation methods – the case of high temperature heat pump. The Seventh International Symposium on Energy (Energy7). Manchester (GB), 13.–17.08.2017.
  • Marquart, J.: Inductive EVSE Technologies – Available technologies, market products and energy Efficiency. IEA-4E Workshop on Efficient Electric Vehicle Supply Equipment (EVSE). Wien (A), 28.09.2017.
  • Schiffmann, J.; Carré, J.; Arpagaus, C.; Bertsch S.: Turbocompressors for Domestic Scale Heat Pumps – A Critical Review. 12th IEA Heat Pump Conference. Rotterdam (NL), 15.–18.05.2017. Oral presentation O.1.6.1.
  • Schiffmann, J.; Carré, J.; Weickgenannt, A.; Arpagaus, C.; Bless, F; Bertsch, S.: Turbokompressoren für Wärmepumpen – Eine Übersicht. 23. Tagung des BFE-Forschungsprogramms «Wärmepumpen und Kälte». HTI, Burgdorf (CH), 14.06.2017.

2016:

  • Bertsch, S.: Wärmepumpen: Trends und Entwicklungen. Bauen-Modernisieren Messe. Zürich (CH),
    08.-11.09.2016.