Publications

Journal papers

• Elijah Polak and Michael Wetter.
  Precision control for generalized pattern search algorithms with adaptive precision function evaluations.
  SIAM Journal on Optimization, 16(3):650-669, 2006.
  

• Michael Wetter.
  BuildOpt - A new building energy simulation program that is built on smooth models.
  Building and Environment, 40:1085--1092, 2005.

• Michael Wetter and Elijah Polak.
  Building design optimization using a convergent pattern search algorithm with adaptive precision simulations.
  Energy and Buildings, 37(6):603--612, 2005.

• Michael Wetter and Elijah Polak.
  A convergent optimization method using pattern search algorithms with adaptive precision simulation.
  Building Services Engineering Research and Technology, 25(4):327--338, 2004.

• Michael Wetter and Jonathan Wright.
  A comparison of deterministic and probabilistic optimization algorithms for nonsmooth simulation-based optimization.
  Building and Environment, 39(8):989--999, 2004.

Dissertation

Software

Peer Reviewed Conference Papers

• Michael Wetter and Philip Haves.
  A modular Building Controls Virtual Test Bed for the integration of heterogeneous systems.
  Proc. of the 3rd SimBuild Conference, Berkeley, CA, USA, August 2008.

• Michael Wetter, Philip Haves, Michael A. Moshier and Edward F. Sowell.
  Using SPARK as a solver for Modelica.
  Proc. of the 3rd SimBuild Conference, Berkeley, CA, USA, August 2008.

• Marija Trcka, Michael Wetter and Jan Hensen.
  Comparison of co-simulation approaches for building and HVAC/R system simulation.
  Proc. of the 10th IBPSA Conference, p. 1418--1425. Beijing, China, September 2007.

• Michael Wetter.
  Multizone Airflow Model in Modelica.
  Proc. of the 5th International Modelica Conference, p. 431--440. Vienna, Austria, September 2006.

• Michael Wetter.
  Multizone Building Model for Thermal Building Simulation in Modelica.
  Proc. of the 5th International Modelica Conference, p. 517--526. Vienna, Austria, September 2006.

• Michael Wetter and Christoph Haugstetter.
  Modelica versus TRNSYS -- A Comparison Between an Equation-Based and a Procedural Modeling Language for Building Energy Simulation.
  Proc. of the 2nd SimBuild Conference, Cambridge, MA, USA, August 2006.

• Michael Wetter and Elijah Polak.
  A convergent optimization method using pattern search algorithms with adaptive precision simulation.
  In G. Augenbroe and J. Hensen, editors, Proc. of the 8th IBPSA Conference, volume III, pages 1393-1400. Eindhoven, Netherlands, 2003.

• Michael Wetter and Jonathan Wright.
  Comparison of a generalized pattern search and a genetic algorithm optimization method.
  In G. Augenbroe and J. Hensen, editors, Proc. of the 8th IBPSA Conference, volume III, pages 1401-1408. Eindhoven, Netherlands, 2003.

• Michael Wetter.
  GenOpt - A generic optimization program.
  In R. Lamberts, C. O. R. Negrao, and J. Hensen, editors, Proc. of the 7th IBPSA Conference, volume I, pages 601-608. Rio de Janeiro, 2001.

Technical Reports

• Michael Wetter.
  BuildOpt - A new building energy simulation program that is built on smooth models.
  LBNL-54657, 2004.

• Michael Wetter, Elijah Polak and Van P. Carey.
  BuildOpt 1.0.1 validation.
  LBNL-54658, 2004.

• Michael Wetter.
  GenOpt 2.0.0 - Generic optimization program.
  LBNL-54199, 2004.
  See http://SimulationResearch.lbl.gov/GO for information and download.

• Elijah Polak and Michael Wetter.
  Generalized pattern search algorithms with adaptive precision function evaluations.
  LBNL-52629, 2003.

• Michael Wetter.
  Design optimization with GenOpt.
  Building Energy Simulation, User News. Lawrence Berkeley National Laboratory, Vol. 21, Sept./Oct. 2000.

• Michael Wetter.
  Simulation model: Air-to-air plate heat exchanger.
  LBNL-42354, 1999.

• Michael Wetter.
  Simulation model: Finned water-to-air coil without condensation.
  LBNL-42355, 1999.

• Michael Wetter and Arthur Huber.
  TRNSYS type: Vertical borehole heat exchanger, EWS model. Model description and implementation in TRNSYS.
  TRNSYS user meeting, November 1997, Stuttgart, Germany.
  Distributed by TRANSSOLAR GmbH, Stuttgart, Germany.

• Thomas Afjei, Michael Wetter and Andrew Glass.
  TRNSYS type: Dual-stage compressor heat pump including frost and cycle losses. Model description and implementation in TRNSYS.
  TRNSYS user meeting, November 1997, Stuttgart, Germany.
  Distributed by TRANSSOLAR GmbH, Stuttgart, Germany.

• Michael Wetter.
  NMF model: Single-pane glazed air collector with a coupled wall. Version 1.0. Model description.
  Technical report, ZTL Luzern, 1997.

• Gerhard Zweifel and Michael Wetter.
  Hand calculation method to determine the yearly performance factor of heat-pump heating systems for room heating and domestic hot water preparation.
  Additional report to low-cost low-temperature heating with heat pump. Phase 2. ZTL Luzern. Luzern 1995 (in German):
  Handrechenmethode zur Bestimmung der Jahresarbeitszahl von Wärmepumpenanlagen für Heiz- und Warmwasserbetrieb.
  Zusatzbericht zum Projekt Kostengünstige Niedrigtemperaturheizung mit Wärmepumpe. Phase 2. ZTL Luzern, Abt. HLK. Luzern, 1997.

• José Cocho, Matthias Sulzer and Michael Wetter.
  Energy Optimized Office Buildings.
  BS Thesis Nr. 95-08, ZTL Luzern, 1995, in German.
  Energieoptimales Bauen im Bürobereich.
  Diplomarbeit Nr. 95-08, ZTL Luzern, 1995.

Project Reports

• T. Afjei, W. Betschart, R. Bircher, G. Doka, H.P. Geering, P. Giger, S. Ginsburg, A. Glass, A. Huber, E. Shafai, M. Wetter, D. Wittwer, and G. Zweifel.
  Low-cost low-temperature heating with heat pump. Phase 2: Measurements of a function specimen, conception of an intelligent controller and ecological and economical comparison with conventional heating systems.
  Research Programme of the Swiss Federal Office of Energy, 1998, in German.
  Kostengünstige Niedrigtemperaturheizung mit Wärmepumpe. Phase 2: Ökologischer und ökonomischer Vergleich des Gesamtsystems, Systemoptimierung, Konzeption einer intelligenten Regelung und Versuche an Testanlagen.
  Forschungsprogramm Umgebungs- und Abwärmenutzung, Wärme-Kraft-Kopplung (UAW) des Bundesamt für Energiewirtschaft (BEW), 1998.

• T. Afjei, W. Betschart, R. Bircher, H.P. Geering, S. Ginsburg, W. Hässig, M. Wetter, D. Wittwer, and G. Zweifel.
  Low-cost low-temperature heating with heat pump. Phase 1: Feasibility analysis, problem analysis and preparation for the construction of a function specimen.
  Research Programme of the Swiss Federal Office of Energy, 1996, in German.
  Kostengünstige Niedrigtemperaturheizung mit Wärmepumpe. Phase 1: Machbarkeits- und Problemanalyse.
  Forschungsprogramm Umgebungs- und Abwärmenutzung, Wärme-Kraft-Kopplung (UAW) des Bundesamt für Energiewirtschaft (BEW). ENET-Nr. 9655701, Bern, 1996. Kurzfassung