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Senior Scientist STI STI-SGM SGM-ENS

François Maréchal Industrial Energy Systems Laboratory Maitre d'enseignement et de recherche birth date: 28.05.1963 nationality: Belge web site: http://leni.epfl.ch/lenisystems office(s): MEA2402 phone(s): [+41 21 69] 33516 fax: [+41 21 69] 33502 MISSION Teaching and research in the field of computer aided process and energy conversion systems analysis and synthesis. Application of computer based methods for the analysis, the design and the optimisation of industrial processes and efficient energy conversion systems. Major research topics Process integration techniques, exergy analysis, process modelling and thermo-economic optimisation. Process synthesis methodologies, application and development of computer aided process engineering methods : data reconciliation, simulation, process integration, mixed integer linear and non linear programming, multi-objective optimisation. Research goals : Integrated processes and energy conversion systems that integrate renewable energy resources and that supply multiple energy services are a key issue for our energy future. The development of advanced computer aided methodologies combining thermodynamics and optimisation techniques will help engineers in the development of more efficient and more sustainable processes and energy conversion systems that will supply the energy for the future generations. Major teaching activities Advanced energetics (process integration), exergy analysis, process optimisation and modelling, energy audits and energy conversion systems for masters in mechanical and electrical engineering, engineers in physics, energy and electrical engineering postgraduate programs and doctoral school. Teaching goals : computer aided project based teaching improves teaching efficiency and allow to bridge the gap between teaching and research activities. By this concept, the student acquire a better know-how that is afterwards valorized in the research activities as well as in their professional life. BIOGRAPHY Ph D. in engineering– Chemical process engineer Researcher and lecturer in the field of computer aided process and energy systems engineering. Lecturer in the mechanical engineering, electrical engineering and environmental sciences engineering in EPFL. I'm responsible for the Minor in Energy of EPFL and I'm involved in 3 projects of the Competence Center in Energy and Mobility (2nd generation biofuel, Wood SOFC, and gas turbine development with CO2 mitigation) in which i'm contributing to the energy conversion system design and optimisation. Short summary of my scientific carrer After a graduation in chemical engineering from the University of Liège, I have obtained a Ph. D. from the University of Liège in the LASSC laboratory of Prof. Kalitventzeff (former president of the European working party on computer aided process engineering). This laboratory was one of the pioneering laboratory in the field of Computer Aided Process Engineering. In the group of Professor Kalitventzeff, I have worked on the development and the applications of data reconciliation, process modelling and optimisation techniques in the chemical process industry, my experience ranges from nuclear power stations to chemical plants. In the LASSC, I have been responsible from the developments in the field of rational use of energy in the industry. My first research topic has been the methodological development of process integration techniques, combining the use of pinch based methods and of mathematical programming: e.g. for the design of multiperiod heat exchanger networks or Mixed integer non linear programming techniques for the optimal management of utility systems. Fronted with applications in the industry, my work then mainly concentrated on the optimal integration of utility systems considering not only the energy requirements but the cost of the energy requirements and the energy conversion systems. I developed methods for analysing and integrating the utility system, the steam networks, combustion (including waste fuel), gas turbines or other advanced energy conversion systems (cogeneration, refrigeration and heat). The techniques applied uses operation research tools like mixed integer linear programming and exergy analysis. In order to evaluate the results of the utility integration, a new graphical method for representing the integration of the utility systems has been developed. By the use of MILP techniques, the method developed for the utility integration has been extended to handled site scale problems, to incorporate environmental constraints and reduce the water usage. This method (the Effect Modelling and Optimisation method) has been successfully applied to the chemical plants industry, the pulp and paper industry and the power plant. Instead of focusing on academic problems, I mainly developed my research based on industrial applications that lead to valuable and applicable patented results. Recently the methods developed have been extended to realise the thermoeconomic optimisation of integrated systems like fuel cells. My present R&D work concerns the application of multi-objective optimisation strategies in the design of processes and integrated energy conversion systems. Since 2001, I’m working in the Industrial Energy Systems Laboratory (LENI) of Ecole Polytechnique fédérale de Lausanne (EPFL) where I’m leading the R&D activities in the field of Computer Aided Analysis and Design of Industrial Energy Systems with a major focus on sustainable energy conversion system development using thermo-economic optimisation methodologies. A part from the application and the development of process integration techniques, that remains my major field of expertise, the applications concern : Rational use of water and energy in Industrial processes and industrial production sites : projects with NESTLE, EDF, VEOLIA and Borregaard (pulp and paper). Energy conversion and process design : biofuels from waste biomass (with GASNAT, EGO and PSI), water dessalination and waste water treatment plant (VEOLIA), power plant design (ALSTOM), Energy conversion from geothermal sources (BFE). Integrated energy systems in urban areas : together with SCANE and SIG (GE) and IEA annexe 42 for micro-cogeneration systems. I as well contributed to the definition of the 2000 Watt society and to studies concerning the emergence of green technologies on the market in the frame of the Alliance for Global Sustainability. Education Chemical Engineer (ingénieur Civil Chimiste), Université de Liège (Belgium), 1986 Ph D. in Applied Sciences, Energy analysis and synthesis of industrial sites, Prof Boris Kalitventzeff Laboratoire d'analyse et de synthèse des systèmes chimiques, University of Liège (Belgium), 1995 Professional course Maitre d'enseignement de Recherche, Industrial Energy systems Laboratory, Ecole Polytechnique fédérale de Lausanne, 2005- 1er assitant, Industrial Energy Systems Laboratory, Ecole Polytechnique Fédérale de Lausanne, 2001-2005 Qualified Researcher, Laboratoire d'analyse et de synthèse des systèmes chimiques, Université de Liège, 1995-2001 1er ingénieur de recherche, Laboratoire d'analyse et de synthèse des systèmes chimiques, Université de Liège, 1992-1996 Ingénieur de recherche, Laboratoire d'analyse et de synthèse des systèmes chimiques, Université de Liège, 1986-1992 MAIN PUBLICATIONS Journal Papers Pending + Laurence Tock and François Maréchal, Co-production of Hydrogen and Electricity from Lignocellulosic Biomass: Process Design and Thermo-economic Optimization, In ENERGY: Special Issue of ECOS 2011, 2011. Submitted for publication. + Emanuele Facchinetti, Martin Gassner, Matilde D'Amelio, François Maréchal, and Daniel Favrat, Process Integration and Optimization of a Solid Oxide Fuel Cell – Gas Turbine Hybrid Cycle fuelled with Hydrothermally Gasified Waste Biomass , In Energy , 2011. Submitted for publication. + Emanuele Facchinetti, Daniel Favrat, and François Maréchal, Design & Optimization of an Innovative small scale Solid Oxide Fuel Cell –Gas Turbine Hybrid Cycle for Residential Applications, In Applied Thermal Engineering, 2011. Submitted for publication. + Léda Gerber, Martin Gassner, and François Maréchal, Systematic integration of LCA in process systems design: Application to combined fuel and electricity production from lignocellulosic biomass, In Computers and Chemical Engineering, 35, 1265-1280, 2011. To appear. + Martin Gassner, Frédéric Vogel, Georges Heyen, and François Maréchal, Optimal process design for the polygeneration of SNG, power and heat by hydrothermal gasification of waste biomass: Process optimisation for selected substrates, In Energy and Environmental Science, 2011. To appear. + Martin Gassner, Frédéric Vogel, Georges Heyen, and François Maréchal, Optimal process design for the polygeneration of SNG, power and heat by hydrothermal gasification of waste biomass: Thermo-economic process modelling and integration, In Energy and Environmental Science, 2011. To appear. + Enrique Mateos-Espejel, Luciana Savulescu, François Maréchal, and Jean Paris, Unified methodology for thermal energy efficiency improvement: Application to Kraft process, In Chemical Engineering Science, 2010. To appear. + Enrique Mateos-Espejel, Luciana Savulescu, François Maréchal, and Jean Paris, Systems interactions analysis for the energy efficiency improvement of a Kraft process, In Energy, 2010. To appear. 2011 + Leda Gerber, Martin Gassner, and Francois Marechal, Systematic integration of LCA in process systems design: Application to combined fuel and electricity production from lignocellulosic biomass, In Computers & Chemical Engineering, 35, 1265-1280, 2011. + Enrique Mateos-Espejel, Luciana Savulescu, Francois Marechal, and Jean Paris, Base case process development for energy efficiency improvement, application to a Kraft pulping mill. Part II: Benchmarking analysis, In Chemical Engineering Research & Design, 89, 729-741, 2011. + Etienne Bernier, François Maréchal, and Réjean Samson, Optimal greenhouse gas emissions in NGCC plants integrating life cycle assessment, In Energy, 2011. + Helen Becker and François Maréchal, Energy integration of industrial sites with heat exchange restrictions, In Computers & Chemical Engineering, 2011. + Emanuele Facchinetti, Daniel Favrat, and François Maréchal, Innovative Hybrid Cycle Solid Oxide Fuel Cell- Inverted Gas Turbine with CO2 Separation, In Fuel Cells -Weinheim-, 11, 565-572, 2011. + Helen Becker, François Maréchal, and Aurélie Vuillermoz, Process integration and opportunities for heat pumps in industrial processes, In International Journal of Thermodynamics, 14(2), 59-70, 2011. 2010 + Hongtao Li, Francois Marechal, and Daniel Favrat, Power and cogeneration technology environomic performance typification in the context of CO2 abatement part II: Combined heat and power cogeneration, In Energy, 35, 3517-3523, 2010. + Hongtao Li, Francois Marechal, and Daniel Favrat, Power and cogeneration technology environomic performance typification in the context of CO2 abatement part I: Power generation, In Energy, 35(8), 3143-3154, 2010. + Laurence Tock, Martin Gassner, and François Maréchal, Thermochemical production of liquid fuels from biomass: Thermo-economic modeling, process design and process integration analysis, In Biomass and Bioenergy, 34(12), 1838-1854, 2010. + Y. Amano, K. Ito, S. Yoshida, K. Matsuo, T. Hashizume, Daniel Favrat, and François Maréchal, Impact analysis of carbon tax on the renewal planning of energy supply system for an ofï¬�ce building , In Energy, 35, 1040-1046, 2010. + Martin Gassner and François Maréchal, Combined mass and energy integration in process design at the example of membrane-based gas separation systems, In Computers and Chemical Engineering, 34(12), 2033-2042, 2010. + Etienne Bernier, François Maréchal, and Réjean Samson, Multi-objective design optimization of a natural gas-combined cycle with carbon dioxide capture in a life cycle perspective, In Energy, 35, 1121-1128, 2010. 2009 + Martin Gassner and Francois Marechal, Thermo-economic process model for thermochemical production of Synthetic Natural Gas (SNG) from lignocellulosic biomass, In Biomass & Bioenergy, 33, 1587-1604, 2009. + David Brown, Martin Gassner, Tetsuo Fuchino, and Francois Marechal, Thermo-economic analysis for the optimal conceptual design of biomass gasification energy conversion systems, In Applied Thermal Engineering, 29, 2137-2152, 2009. + Su-ping Zhang, François Maréchal, Martin Gassner, Zheng-wei Ren, Yong-jie Yan, and Daniel Favrat, Simulation of Fuel Ethanol Production from Lignocellulosic Biomass, In The Chinese Journal of Process Engineering, 9(2), 333-337, 2009. + Martin Gassner, Renato Baciocchi, Maréchal François, and Marco Mazzotti, Integrated design of a gas separation system for the upgrade of crude SNG with membranes, In Chemical engineering and processing, 48(9), 1391-1404, 2009. + Andres Collazos, François Maréchal, and Conrad Gähler, Predictive optimal management method for the control of polygeneration systems, In Computers & Chemical Engineering, 33(10), 1584-1592, 2009. + Suping Zhang, François Maréchal, Martin Gassner, Zoé Périn-Levasseur, Zhengwei Ren, Yongjie Yan, and Daniel Favrat, Process modeling and integration of fuel ethanol production from lignocellulosic biomass based on double acid hydrolysis, In Energy & fuels, 23(3), 1759-1765, 2009. + Jeremy S. Luterbacher, Morgan Fröling, Frédéric Vogel, François Maréchal, and Jefferson W. Tester, Hydrothermal Gasification of Waste Biomass, In Environmental Science & Technology, 43(5), 1578-1583, 2009. + Martin Gassner and François Maréchal, Thermodynamic comparison of the FICFB and Viking gasification concepts, In Energy, 34(10), 1744-1753, 2009. + Martin Gassner and François Maréchal, Methodology for the optimal thermo-economic, multi-objective design of thermochemical fuel production from biomass, In Computers and chemical engineering, 33(3), 769-781, 2009. + David Brown, Martin Gassner, Tetsuo Fuchino, and François Maréchal, Thermo-economic analysis for the optimal conceptual design of biomass gasification energy conversion systems, In Applied Thermal Engineering, 29(11-12), 2137-2152, 2009. + Martin Gassner and François Maréchal, Thermo-economic process model for thermochemical production of Synthetic Natural Gas (SNG) from lignocellulosic biomass, In Biomass and Bioenergy, 33(11), 1587-1604, 2009. 2008 + Raffaele Bolliger, Francesca Palazzi, and François Maréchal, Heat Exchanger Network (HEN) costs and performances estimation for multi-period operation, In Computer Aided Chemical Engineering, 24, 2008. + Andrés Collazos and François Maréchal, Predictive Optimal Management Method for the control of polygeneration systems , In Computer Aided Chemical Engineering, 25, 325-330, 2008. + François Vince, Emmanuelle Aoustin, Phillipe Bréant, and François Marechal, LCA tool for the environmental evaluation of potable water production, In Desalination, 220(1-3), 37-56, 2008. + Daniel Favrat, Francois Marechal, and Olivier Epelly, The challenge of introducing an exergy indicator in a local law on energy, In Energy, 33(2), 130-136, 2008. + François Vince, François Maréchal, Emmanuelle Aoustin, and Philippe Breant, Multi-objective optimization of RO desalination plants, In Desalination, 222(1-3), 96-118, 2008. + Martin Gassner and François Maréchal, Thermo-economic optimisation of the integration of electrolysis in SNG production from wood, In Energy, 33(2), 189-198, 2008. 2007 + Céline Weber, Gaëtan Cherix, Massimiliano Capezzali, and François Maréchal, Intégration optimale des coulages chaleur-force dans les systèmes urbains, In Aapg Bulletin, 9, 27-32, 2007. + P. Jansohn, T. Griffin, I. Mantzaras, F. Clemens, and F. Marechal, Reducing carbon dioxide emissions by gas turbine processes | [CO2-Reduktion bei gasturbinen-prozessen] , In Chemie-Ingenieur-Technik , 79(9), 1324, 2007. + Martin Gassner and François Maréchal, Methodology for the optimal thermo-economic, multi-objective design of thermochemical fuel production from biomass, In Computer Aided Chemical Engineering, 24, 1289-1294, 2007. + Celine Weber, Francois Marechal, and Daniel Favrat, Design and optimization of district energy systems, In Computer Aided Chemical Engineering, 24, 1127-1132, 2007. + Francesca Palazzi, Nordahl Autissier, François Maréchal, and Daniel Favrat, A methodology for thermo-economic modeling and optimization of solid oxide fuel cell systems, In Applied Thermal Engineering, 27(16, Spec. Iss.), 2703-2712, 2007. + Damien Muller, François Maréchal, Thomas Wolewinski, and Pieter J. Roux, An energy management method for the food industry, In Applied Thermal Engineering, 27(16 sepc. iss.), 2677-2686, 2007. + Nordahl Autissier, Francesca Palazzi, François Maréchal, Jan Van herle, and Daniel Favrat, Thermo-economic Optimization of a Solid Oxide Fuel Cell, Gas Turbine Hybrid System, In Journal of Fuel Cell Science and Technology, 4(2), 123-129, 2007. 2006 + Jan Beausoleil-Morrison, Adrian Schatz, and François Maréchal, A Model for Simulating the Thermal and Electrical Production of Small-Scale Solid-Oxide Fuel Cell Cogeneration Systems within Building Simulation Programs , In HVAC&R Research Special Issue, 12(3a), 641-667, 2006. + François Maréchal, Quand l'énergie est intégrée à la planification des quartiers du futur, In L'AGEFI, janvier 2006(01), 82-85, 2006. + Céline Isabelle Weber, François Maréchal, Daniel Favrat, and Steven Kraines, Optimization of an SOFC-based decentralized polygeneration system for providing energy services in an office-building in Tokyo, In Applied Thermal Engineering, 26(13), 1409-1419, 2006. + Hongtao Li, François Maréchal, Meinrad Bürer, and Daniel Favrat, Multi-Objective Optimization of an Advanced Combined Cycle Power Plant including CO2 Separation Options, In Energy, 31(15), 3117-3134, 2006. 2005 + François Maréchal, Daniel Favrat, and Eberhard Jochem, Energy in the perspective of the sustainable development : the 2000 W society challenge, In Conservation & Recycling, 44(3 spec. iss.), 245-262, 2005. + Francesca Palazzi, Nordahl Autissier, François Maréchal, and Jan Van herle, A Methodology for Thermo-Economic Modeling and Optimization of SOFC Systems, In Chemical Engineering Transactions, 7, 13-18, 2005. + François Maréchal, David Brown, and Jean Paris, A dual representation for targeting process retrofit, application to a pulp and paper process, In Applied Thermal Engineering, 25(7), 1067-1082, 2005. + François Maréchal, Daniel Favrat, Francesca Palazzi, and Julien Godat, Thermo-economic modelling and optimisation of fuel cell systems, In Fuel Cells, 5(1), 5-24, 2005. + Alexis Duret, François Maréchal, and Claude Friedli, Process design of Synthetic Natural Gas (SNG) production using wood gasification, In Journal of Cleaner Production, 13/15, 1434-1446, 2005. 2004 + David Brown, François Maréchal, Georges Heyen, and Jean Paris, Data reconciliation and sampling protocol design, case of a paper deinking process, In paperi ja puu-paper and timber, 86(8/2004), 1661-1666, 2004. + John Mantzaras, Stefan A. Freunberger, Ludwig J. Gauckler, Faegheh Hajbolouri, Michel Prestat, Markus Roos, Stephan M. Senn, Nordahl Autissier, Diego Larrain, François Maréchal, Bernhard Andreaus, Wilhelm Brandstätter, Felix N. Büchi, Andreas K. Chaniotis, and Dimos Poulikakos, Fuel Cell Modeling and Simulations, In chimia, 58(12), 857-868, 2004. + Jan Van herle, Daniel Favrat, François Maréchal, Olivier Bucheli, Sacha Leuenberger, and Yves Membrez, Process flow model of solid oxide fuel cell system supplied with sewage biogas, In Journal of Power Sources, 131(1-2), 127-141, 2004. + Diego Larrain, Daniel Favrat, François Maréchal, and Jan Van herle, Generalized model of planar SOFC repeat element for design optimization, In Journal of Power Sources, 131(1-2), 304-312, 2004. + Boris Kalitventzeff, François Maréchal, Hervé Closon, Georges Heyen, and B. Vrielynck, How CAPE tools can contribute to process sustainability, In journal of cleaner production, 12(2), 117-124, 2004. + E. Savu, François Maréchal, Jean Paris, and S. Sarrailh, Fermeture des circuits dans un procédé de désencrage: analyse et simulation, In Pulp & Paper, Canada, 105 (2): T30-35, 105(2), 28-33, 2004. + Hongtao Li, Daniel Favrat, François Maréchal, Meinrad Bürer, and S. Zhi-Ping, Green Heating System : Characteristics and illustration with the Multi-Criteria Optimization of an Integrated Energy System., In energy, 29(2), 225–244, 2004. 2003 + David Brown, François Maréchal, Georges Heyen, and Jean Paris, Application of Data Reconciliation to the Simulation of System Closure Options in a Paper Deinking Process, In European Symposium on Computer aided Process Engineering-13, ed. A. Kraslawski and I. Turunen, Elsevier. Vol 13 p 1001-1006, 14, 1001-1006, 2003. + Julien Godat and François Maréchal, Combined optimisation and process integration techniques for the synthesis of fuel cells systems, In Proceedings of the 13th European Symposium on Computer Aided Process Engineering, ed. A. Kraslawski and I. Turunen, Elsevier., 14, 143-148, 2003. + Jan Van herle, Daniel Favrat, François Maréchal, and Sacha Leuenberger, Energy balance model of a SOFC cogenerator operated with biogas, In Journal of Power Sources, 118(1-2), 375-383, 2003. + Julien Godat and François Maréchal, Optimization of a fuel cell system using process integration techniques, In Journal of Power Sources, 118 (2003)(1-2), 411-423, 2003. + Diego Larrain, Daniel Favrat, François Maréchal, and Jan Van herle, Thermal modeling of a small anode supported solid oxide fuel cell, In Journal of Power Sources, 118(1-2), 367-374, 2003. + François Maréchal and Boris Kalitventzeff, Targeting the integration of multi-period utility systems for site scale process integration, In Applied Thermal Engineering, 23((14)), 1763-1784, 2003. 2001 + François Maréchal, Boris Kalitventzeff, and Hervé Closon, Better solutions for process sustainability through better insight in process energy integration, In Applied Thermal Engineering, 21(13-14), 1349-1368, 2001. 2000 + François Maréchal and Boris Kalitventzeff, Optimal insertion of energy saving technologies in industrial processes: a web based tool helps in developments and coordination of a european R&D project, In Applied Thermal Engineering, 20(Issues 15-16), 1347-1364, 2000. 1998 + François Maréchal and Boris Kalitventzeff, process integration: Selection of the optimal utility system, In Computers & Chemical Engineering, 22(supplement 1), S149-S156, 1998. + François Maréchal and B. Kalitventzeff, Energy integration of industrial sites: tools, methodology and applications, In Applied Thermal Engineering, 18(Issue 11), 921-933, 1998. 1997 + François Maréchal and Boris Kalitventzeff, Targeting the optimal integration of steam networks, In Chemical Engineering Science, 52(Issue 17), 2977-2989, 1997. + François Maréchal and B. Kalitventzeff, Effect modeling and optimisation, a new methodology for combined energy and environment synthesis of industrial processes, In Applied Thermal Engineering, 17(Issues 8-10), 981-992, 1997. + François Maréchal and B. Kalitventzeff, Energy savings in methanol synthesis: Use of heat Integration Techniques and Simulation Tools, In Computers & Chemical Engineering, 21(Supplement 1), S511-S516, 1997. + François Maréchal and B. Kalitventzeff, Identify the optimal pressure levels in steam networks using integrated Combined Heat and Power method, In Chemical Engineering Science, 52(Issue 17), 2977-2989, 1997. 1996 + François Maréchal and B. Kalitventzeff, Targeting the Minimum Cost of Energy Requirements: a new graphical technique for evaluating the integration of utility systems, In Computers & Chemical Engineering, 20(Supplement 1), S225-S230, 1996. 1989 + François Maréchal and B. Kalitventzeff, a methodology for energy integration and optimal heat exchanger network synthesis, In Computers & Chemical Engineering, Volume 13(Issues 4-5,), 603-610, 1989. Conference Papers Pending + Laurence Tock and François Maréchal, Thermo-chemical H2 production: Thermo-economic modeling and process integration, 2011. Submitted for publication. + Nasibeh Pouransari, Mathilde Mercier, Leandro Salgueiro, and Francois Marechal, A general and operational methodology for energy efficiency of industrial chemical processes, 2011. To appear. + Laurence Tock and François Maréchal, Co-production of Hydrogen and Electricity from Lignocellulosic Biomass: Process Design and Thermo-economic Optimization, 2011. To appear. + Jakob Rager, Luc Girardin, and François Maréchal, Solar Potential Assessment on Roofs of Urban Areas and its Integration, 2010. To appear. + Etienne Bernier, Réjean Samson, and François Maréchal, Multi-objective Design Optimization of a NGCC Power Plant with CO2 Capture Using Life Cycle Assessment Results, 2008. To appear. + Daniel Favrat, François Maréchal, Jan Van herle, Stefan Heyne, and Martin Gassner, Selected pathways for a more efficient conversion of biomass in cogeneration or fuel production, 2007. To appear. + Hongtao Li, François Maréchal, and Daniel Favrat, Evaluation of Natural Gas Combined Cycle Plants in China through Environomic Modeling and Multi-objective Optimization, In , 2007. Submitted for publication. + Céline Isabelle Weber, François Maréchal, and Daniel Favrat, Design and optimization of district energy systems, In Computer Aided Chemical Engineering, 24, 1127-1132, 2007. Submitted for publication. + Daniel Favrat, François Maréchal, and Olivier Epelly, The challenge of introducing an exergy indicator in a local low on energy, In ECOS 2006, 2006. To appear. + Gustave P. Nguene, Gaëtan Chérix, François Maréchal, M. Finger, and J.M. Revaz, Enhancing the quality of energy services in urban areas by means of renewable energy technologies and information and communication technologies in energy networks: issues, challenges and opportunities., In World Renewable Energy Congress IX, 6, 2006. To appear. + Céline Isabelle Weber, Istvan Heckl, Ferenc Friedler, François Maréchal, and Daniel Favrat, Network synthesis for a district energy system: a step towards sustainability, In , 2006. Submitted for publication. + Luc Girardin, François Maréchal, and Pascal Tromeur, Methodology for the design of industrial hydrogen networks and the optimal placement of purification units using multi-objective optimisation techniques, In , 2005. To appear. + François Maréchal, Decentralized production in urban systems, the vision of the Institute of Energy Sciences of EPFL, In Swiss Environmental Solutions For Emerging Countries (SESEC IV - 2005), 2005. To appear. 2011 + Helen Becker, Giulia Spinato, and Francois Marechal, A Multi-Objective Optimization Method to integrate Heat Pumps in Industrial Processes, In 21St European Symposium On Computer Aided Process Engineering, 29, 1673-1677, 2011. + E. Facchinetti, D. Favrat, and F. Marechal, Innovative Hybrid Cycle Solid Oxide Fuel Cell-Inverted Gas Turbine with CO2 Separation, In Fuel Cells, 11, 565-572, 2011. + Matteo Morandin, Andrea Toffolo, Andrea Lazzaretto, Francois Marechal, Adriano V. Ensinas, and Silvia A. Nebra, Synthesis and parameter optimization of a combined sugar and ethanol production process integrated with a CHP system, In Energy, 36, 3675-3690, 2011. + Jakob Rager and François Maréchal, From science to application in Geneva: best practice example from theoretical concept on exergy over a law into everyday life of a citizen, 2011. + Jakob Rager, François Maréchal, and Olivier Epelly, From science to application in Geneva: best practice example from theoretical concept on exergy over a law into everyday life of a citizen, 2011. + Samira Fazlollahi, Francois Marechal, and Benoit Beraud, Multi-objective investment and operating optimization of energy systems with integer cut constraints and evolutionary algorithm, 2011. + Samira Fazlollahi, François Maréchal, Magdalena Obrecbska, and Julia Markowska, Multi-Objective Optimization of Biomass Conversion Technologies by Using Evolutionary Algorithm and Mixed Integer Linear Programming (MILP), 2011. + Bernhard Steubing, Isabel Ballmer, Léda Gerber, François Maréchal, Rainer Zah, and Christian Ludwig, An environmental optimization model for bioenergy plant sizes and locations for the case of wood-derived SNG in Switzerland, 2011. + Léda Gerber, Jérôme Mayer, and François Maréchal, A systematic methodology for the synthesis of unit process chains using Life Cycle Assessment and Industrial Ecology Principles, In 21St European Symposium On Computer Aided Process Engineering, 29, 1215-1219, 2011. + Léda Gerber and François Maréchal, Defining Optimal Configurations of Geothermal Systems Using Process Design and Process Integration Techniques, 2011. + Helen Becker, Giulia Spinato, and François Maréchal, A Multi-Objective Optimization Method to integrate Heat Pumps in Industrial Processes, In Computer Aided Chemical Engineering, 29, 1673-1677, 2011. + Helen Becker, Aurélie Vuillermoz, and François Maréchal, Heat pump integration in a cheese factory, In Chemical Engineering Transactions, 25, 195-200, 2011. 2010 + Luc Girardin, Francois Marechal, Matthias Dubuis, Nicole Calame-Darbellay, and Daniel Favrat, EnerGis: A geographical information based system for the evaluation of integrated energy conversion systems in urban areas, In Energy, 35, 830-840, 2010. + Monika Dumbliauskaite, Helen Becker, and François Maréchal, Utility Optimization in a Brewery Process Based on Energy Integration Methodology, In Proceedings of the 23th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems , 91–98, 2010. + Léda Gerber, Martin Gassner, and François Maréchal, Environomic optimization of SNG production from lignocellulosic biomass using Life Cycle Assessment, In Proceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2010. + Michael Hoban, Léda Gerber, and François Maréchal, Integrated Thermo-Economic Modelling of Geothermal Resources for Optimal Exploitation Scheme Identification, In Proceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2010. + Laurence Tock, Martin Gassner, and François Maréchal, Thermo-economic Evaluation of the Thermochemical Production of Liquid Fuels from Biomass, 2010. + Martin Gassner and François Maréchal, Increasing Conversion Efficiency in Fuel Ethanol Production from Lignocellulosic Biomass by Polygeneration - and a Paradoxon between Energy and Exergy in Process Integration, 2010. + Martin Gassner, Frédéric Vogel, and François Maréchal, Optimal Process Design of Hydrothermal SNG Production from Waste Biomass, 2010. + Detlef Stolten, Thomas Grube, Laurence Tock, François Maréchal, Christian Metzger, and Philippe Arpentinier, Process Integration Analysis of an Industrial Hydrogen Production Process, In 18th World Hydrogen Energy Conference 2010 - WHEC 2010 : Parallel Sessions Book 3: Hydrogen Production Technologies - Part 2 , 523, 2010. + Emanuele Facchinetti, Daniel Favrat, and François Maréchal, Innovative Hybrid Cycle Solid Oxide Fuel Cell- Inverted Gas Turbine with CO2 Separation, In Fuel Cells, 11, 565-572, 2010. + Daniel Favrat, François Maréchal, Gene Bunin, Zacharie Wuillemin, Grégory François, Arata Nakajo, Leonidas Tsikonis, and Dominique Bonvin, Experimental Real-Time Optimization of a Solid Oxide Fuel Cell Stack via Constraint Adaptation, In Proceedings of 23rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Lausanne, V - Fuel Cell and International Combustion Engines, 141-148, 2010. + Helen Becker, Luc Girardin, and François Maréchal, Energy integration of industrial sites with heat exchange restrictions, In Computer Aided Chemical Engineering, 28, 1141-1146, 2010. 2009 + Martin Gassner and Francois Marechal, Methodology for the optimal thermo-economic, multi-objective design of thermochemical fuel production from biomass, In Computers & Chemical Engineering, 33, 769-781, 2009. + Martin Gassner and Francois Marechal, Process Integration Aspects of the Design of a Gas Separation System for the Upgrade of Crude Synthetic Natural Gas (SNG) to Grid Quality in a Wood to Methane Process, In 10Th International Symposium On Process Systems Engineering: Part A, 27, 903-908, 2009. + Raffaele Bolliger, Helen Becker, and Francois Marechal, New Generic Approach for the Analysis of Energy Conversion System Models, In 10Th International Symposium On Process Systems Engineering: Part A, 27, 243-248, 2009. + Luc Girardin, Raffaele Bolliger, and Francois Marechal, On the use of process integration techniques to generate optimal steam cycle configurations for the power plant industry, In Pres'09: 12Th International Conference On Process Integration, Modelling And Optimisation For Energy Saving And Pollution Reduction, Pts 1 And 2, 18, 171-176, 2009. + Nicole Calame-Darbellay, Luc Girardin, François Marechal, Zvonimir Guzovi, Neven Dui, and Marko Ban, Methodology for the integration of low temperature district network in urban area, In CD PROCEEDINGS, 2009. + Matthias Dubuis and François Maréchal, Optimal energy system design under uncertain parameters, In Chemical Engineering Transactions, 18, 2009. + Luc Girardin, Raffaele Bolliger, and François Maréchal, On the use of process integration techniques to generate optimal steam cycle configurations for the power plant industry., In Pres'09: 12Th International Conference On Process Integration, Modelling And Optimisation For Energy Saving And Pollution Reduction, Pts 1 And 2, 18, 171-176, 2009. + Helen Becker, François Maréchal, and Aurélie Vuillermoz, Process integration and opportunity for heat pumps in industrial processes, In Proceedings of ECOS 2009: 22ndInternational Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 1381-1390, 2009. + Zoé Périn-Levasseur, François Maréchal, and Jean Paris, Efficient energy conversion in a sulfite pulping process, In , 2009. + Zoé Périn-Levasseur, François Maréchal, and Jean Paris, Analysis of a biorefinery integration in a bisulfite pulp process, In , 2009. 2008 + Zoé Périn-Levasseur, Vanessa Palese, and François Maréchal, Energy integration study of a multi-effect evaporator, In Proceedings of the 11th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, 2008. + Yoshiharu Amano, Koichi Ito, Shu Yoshida, Keigo Matsuo, Takumi Hashizume, Daniel Favrat, and François Maréchal, Impact Analysis of Carbon Tax on the Renewal Planning of Energy Supply System for an Office Building, In Energy, 35, 1040-1046, 2008. 2007 + Martin Gassner and François Maréchal, Methodology for the optimal thermo-economic, multi-objective design of thermochemical fuel production from biomass, In Computer Aided Chemical Engineering, 24, 1289-1294, 2007. 2006 + Zoé Périn-Levasseur, François Maréchal, and Jean Paris, Methodology for process energy analysis: application to a sulfite wood pulping, 2006. + Jean-Pierre Rickli, Daniel Favrat, François Maréchal, and Jonathan Demierre, Can steam play a role in low to medium power from low temperature heat?, In ASME AT1 2006, 1(34), 273-283, 2006. + David Brown, Martin Gassner, Tetsuo Fuchino, and François Maréchal, Thermo economic analysis for the optimal conceptual design of biomass gasification energy conversion systems, In , 2006. + Martin Gassner and François Maréchal, Thermo-economic optimisation of the integration of electrolysis in a wood to methane process, 2006. + David Brown, Tetsuo Fuchino, and François Maréchal, Solid Fuel Decomposition Modelling for the Design of Biomass Gasification Systems, In Proceedings of ESCAPE 16, 0(0), 1661-1666, 2006. 2005 + Nordahl Autissier, Francesca Palazzi, François Maréchal, Jan Van herle, and Daniel Favrat, Thermo-economic Optimization of a Solid Oxide Fuel Cell, Gas Turbine Hybrid System, In Book of Abstracts, 249, 2005. + Céline Isabelle Weber, François Maréchal, and Daniel Favrat, Network synthesis for district heating with multiple heat plants, In International Conference Energy-Environment CIEM 2005, Bucharest, Romania, 0(0), 347-354, 2005. + Jan Beausoleil-Morrison, François Maréchal, and Adrian Schatz, A proposed System-Level Model for Simulating the Thermal and Electrical Production of Solid-Oxide Fuel Cell Residential Cogeneration Devices within Whole-Building Simulation, In The Ninth International Building Performance Simulation Association, 2005. + Raffaele Bolliger, Daniel Favrat, and François Maréchal, Advanced Power Plant Design Methodology using Process Integration and Multi-Objective Thermo-Economic Optimisation, In ECOS 2005, 18th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2, 777-784, 2005. + François Maréchal and Daniel Favrat, Combined Exergy and Pinch Analysis for Optimal Energy Conversion Technologies Integration, In ECOS 2005, 18th International Conference on Efficiency, Cost,Optimization, Simulation and Environmental Impact of Energy Systems, 1, 177-184, 2005. + David Brown, François Maréchal, Georges Heyen, and Jean Paris, Application of multi-objective optimisation to process measurement system, In Computer Aided Chemical Engineering (ed elsevier), European Symposium on computer aided process engineering n15, ed Luis Puigjaner and Antonio Espuna, 20B, 1153-1159, 2005. + Damien Muller, François Maréchal, Pieter J. Roux, and Thomas Wolewinski, An energy management method for the food industry, In Chemical Engineering Transactions, 7, 471-476, 2005. 2004 + Céline Isabelle Weber, Daniel Favrat, François Maréchal, Steven Kraines, and Michihisa Koyama, Optimization of an SOFC-based decentralized polygeneration system for providing energy services in an office-building in Tokyo, In 7th conference PRES 2004, CHISA 2004, 177(14), 2985-3004, 2004. + Jean-Louis Lilien, François Maréchal, Sebastien Lerson, and Nicolas Pochet, A heat piloted 5 kW fuel cell, In Proceedings of the 7th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES2004), 2004. + Diego Larrain, Nordahl Autissier, Daniel Favrat, François Maréchal, and Jan Van herle, Multi-scale modeling methodology for computer aided design of a Solid Oxide fuel cell stack, In Computer Aided Chemical Engineering, 14, 1081-1086, 2004. + François Maréchal, Daniel Favrat, Francesca Palazzi, and Julien Godat, Thermo-economic modelling and optimization of fuel cell systems, In Fuel Cell Research Symposium, 2004. + David Brown, François Maréchal, and Jean Paris, Mass Integration of a Deinking Mill, In 90ème conf. ann. PAPTAC, Montréal (2004), 1(0), 97-103, 2004. + François Maréchal and Boris Kalitventzeff, A Methodology for the Optimal Insertion of Organic Rankine Cycles in Industrial Processes, In 2nd International Symposium of Process Integration, 2004. 2003 + Hongtao Li, Daniel Favrat, François Maréchal, and Meinrad Bürer, Multi-Criteria Optimization of Pulverized Fuel Coal-Fired Power Generation System Load Dispatching, 2003. 2002 + François Maréchal, Hervé Closon, Boris Kalitventzeff, and Sauro Pierucci, A Tool for Optimal Synthesis of Industrial Refrigeration Systems : Application to an Olefins Plant., 2002. Ph.D. Theses 2012 + Emanuele Facchinetti, Daniel Favrat, and François Maréchal, Integrated Solid Oxide Fuel Cell, Ph.D. Thesis, 2012. 2011 + Luc Girardin, François Maréchal, and Daniel Favrat, Geographical Information System for the Evaluation of Integrated Energy Systems in Urban Area, Ph.D. Thesis, 2011. 2010 + Raffaele Bolliger, François Maréchal, and Daniel Favrat, Méthodologie de la synthèse des systèmes énergétiques industriels, Ph.D. Thesis, 2010. + Martin Gassner and François Maréchal, Process Design Methodology for Thermochemical Production of Fuels from Biomass, Ph.D. Thesis, 2010. 2009 + Zoé Périn-Levasseur, François Maréchal, and Jean Paris, Energy efficiency and conversion in complex integrated industrial sites, Ph.D. Thesis, 2009. 2008 + François Vince, François Maréchal, and Maxime Pontié, Design approach for the improvement of the economic and environmental performances of potable water supply, Ph.D. Thesis, 2008. + Céline Isabelle Weber, Daniel Favrat, and François Maréchal, Multi-objective design and optimization of district energy systems including polygeneration energy conversion technologies, Ph.D. Thesis, 2008. 2007 + Damien Muller, François Maréchal, and Daniel Favrat, Web-based tools for energy management in large companies applied to food industry, Ph.D. Thesis, 2007. 2006 + Hongtao Li, Daniel Favrat, and François Maréchal, Environomic modeling and multi-objective optimisation of integrated energy systems for power and cogeneration, Ph.D. Thesis, 2006. Book Chapters 2008 + Francois Maréchal, Céline Weber, Daniel Favrat, Efstratios N. Pistikopoulos, Michael C. Georgiadis, and Eustathios S. Kikkinides, Multi-Objective Design and Optimisation of Urban Energy Systems, in Energy Systems Engineering, Weinheim : Wiley, 2008. + Jin-Kuk Kim, Robin Smith, Jirik Klemens, François Maréchal, and Damien Muller, Energy management methods for the food industry, in Handbook of water and energy management in food processing, Cambridge : CRC Press LLC, 2008. Patents 2011 + Emanuele Facchinetti, Daniel Favrat, and François Maréchal, Hybrid Cycle SOFC - Inverted Gas Turbine with CO2 Separation, Patent # PCT/IB2010/052558. 2010 + Martin Gassner, Frédéric Vogel, and François Maréchal, A process and a plant for hydrothermal SNG production from waste biomass, Patent # 2010P10758EP. Technical Reports 2011 + Léda Gerber and François Maréchal, Systèmes hybrides pour les installations de géothermie profondes: cas d'étude de La Chaux-de-Fonds, Technical Report, 2011. 2010 + Luc Girardin, Guillaume Ridoux, and François Maréchal, Management Energétique Urbain - Neuchâtel , Technical Report, 2010. + Luc Girardin and François Maréchal, Études d'options énergétiques pour le quartier "Etraz-Sud", Technical Report, 2010. + Magnhild Kallhovd, Luc Girardin, and François Maréchal, Application of the district cooling/heating network design models in the GLN area, Technical Report, 2010. + Luc Girardin, Jakob Rager, Mathias Cudilleiro, and François Maréchal, Concept énergétique du développement urbain de la Commune de Nyon, Technical Report, 2010. 2009 + François Maréchal, Optimal energy conversion system design under uncertain parameters , Technical Report, 2009. + Nicole Calame, Luc Girardin, Matthias Dubuis, and François Maréchal, Monitoring and adaptation of existing buildings to a hydraulic network Impact of the retrofit of buildings and heat distribution systems on the system performance, Technical Report, 2009. 2008 + Victor Dorer, A. Weber, R. Weber, François Maréchal, Andres Collazos, J. Tödtli, C. Gähler, M. Gwerder, R. Lamon, A. Schatz, and R. Kober, The simulation of building-integrated fuel cell and other cogeneration systems, Technical Report, 2008. 2007 + Nicole Darbellay, Céline Weber, Luc Girardin, Matthias Dubuis, François Maréchal, and Daniel Favrat, Stratégie thermique pour le canton de Genève: réseau de distribution de chaleur et climatisation, Technical Report, 2007. + Enrique Mateos-Espejel, Mariya Marinova, François Maréchal, and Jean Paris, Analyse énergétique d’évaporateurs par la méthode de la double représentation, Technical Report, 2007. + Rudolf Minder, François Maréchal, Joachim Ködel, Karl-Heinz Schädle, Kathrin Ramsel, and Luc Girardin, Energy conversion processes for the use of geothermal heat - Final report, Technical Report, 2007. 2005 + Denis Bochatay, Isabelle Blanc, Olivier Jolliet, François Maréchal, Tiana Manasse-Ratsimandresy, and Rémy Beck, Projet PACOGEN, Evaluation économique et environnementale de systèmes énergétiques à usage résidentiel, Technical Report, 2005. 2004 + Francesca Palazzi, Daniel Favrat, François Maréchal, and Jan Van herle, Energy Integration and System Modelling of Fuel Cell Systems, Technical Report, 2004. 2003 + David Brown, François Maréchal, Georges Heyen, and Jean Paris, Data Reconciliation and Sampling Protocol Design: The Case of a Paper Deinking Proces, Technical Report, 2003. + Nordahl Autissier, Diego Larrain, François Maréchal, and Jan Van herle, Modélisation système SOFC dans l’environnement gPROMS, Technical Report, 2003. 2002 + François Maréchal, Ahmed Boulaïch, Daniel Favrat, Julien Godat, Pierre Krummenacher, and Alex K. Molyneaux, Promotion de l'utilisation rationnelle de l'énergie dans l'industrie par PINCHLENI, Technical Report, 2002. + Michele Zehnder, François Maréchal, and Daniel Favrat, Pompe à chaleur air-eau à Haute Température. Phase 2: cycle à injection optimisé, essai journaliers et compreseur booster. Analyse thermo-économique., Technical Report, 2002. 2001 + Pierre Krummenacher, Blaise Renaud, François Maréchal, and Daniel Favrat, Intégration énergétique de procédés discontinus à l'aide d'algorithmes génériques., Technical Report, 2001. Posters 2010 + Léda Gerber and François Maréchal, Methodology for the identification of optimal exploitation schemes of geothermal systems, Presented at: CCES Latsis Symposium 2010, Zürich, Switzerland, November 17-19, 2010. + Laurence Tock and François Maréchal, Thermo-economic modeling of fuel decarbonization processes, Presented at: CCES Latsis Symposium 2010, Zürich, Switzerland, November 15-17, 2010. + Léda Gerber and François Maréchal, Strategy for the identification of optimal exploitation schemes of geothermal systems, Presented at: European Geothermal PhD Day 2010, Potsdam, February 11-12 2010. 2009 + Léda Gerber, Martin Gassner, and François Maréchal, Integration of LCA in a thermo-economic model for synthetic natural production from woody biomass, Presented at: Alliance for Global Sustainability Annual Meeting 2009, Zürich, January 26-29, 2009. 2008 + Zoé Périn-Levasseur, François Maréchal, and Jean Paris, Efficient Energy Conversion in a Sulfite Pulp Process, Presented at: Smart Energy Strategies 2008, Zurich, September 8-10, 2008. + Martin Gassner and François Maréchal, Optimal process design for thermochemical production of fuels from biomass, Presented at: Smart Energy Strategies, Zürich, September 8-10, 2008. 2007 + Martin Gassner, François Maréchal, and Daniel Favrat, Optimal process design for thermochemical biofuel production plants, Presented at: Annual meeting of the Alliance for Global Sustainability (AGS), Barcelona, 18.-21.03.2007. Presentations 2011 + François Maréchal, Process integration aspects in the design of biofuel processes, 2011. + François Maréchal, Process design methods for sustainable energy systems, 2011. 2010 + Nicolas Descoins and François Maréchal, WWTP optimizations studies using gPROMS, 2010. + Luc Girardin and François Maréchal, Outils et méthodes pour intégrer les ressources, demandes et technologies de conversion à l’échelle d’un projet urbain , 2010. + Laurence Tock, François Maréchal, Christian Metzger, and Philippe Arpentinier, Process Integration Analysis of an Industrial Hydrogen Production Process, 2010. 2009 + Léda Gerber, Martin Gassner, and François Maréchal, Integration of LCA in a thermo-economic model for multi-objective process optimization of SNG production from woody biomass, 2009. 2005 + François Maréchal, Multi-objective optimisation of fuel cell systems, 2005. + François Maréchal, Multi-objective optimisation of complex energy conversion systems, 2005. + David Brown, Zoé Périn-Levasseur, François Maréchal, and Jean Paris, Une nouvelle méthode d'analyse thermique et son application aux procédés papetiers, 2005. + François Maréchal, Optimisation multi-objectifs pour la conception des systèmes énergétiques, 2005. 2004 + François Maréchal, Design methodology for micro cogen systems, 2004. + Céline Isabelle Weber, Daniel Favrat, François Maréchal, Steven Kraines, and Michihisa Koyama, Optimization of an SOFC-based decentralized polygeneration system for providing energy services in an office-building in Tokyo, 2004. + Hongtao Li, Daniel Favrat, François Maréchal, and Meinrad Bürer, Multi-Criteria Optimization of an Advanced Combined Cycle Power Plant including CO2 Separation Options, 2004. + David Brown, François Maréchal, and Jean Paris, Targeting Method for the Retrofit Design of the Cogeneration System of Integrated Newsprint Mill, 2004. 2002 + François Maréchal and Julien Godat, Optimisation of a fuel cell system using process integration techniques, 2002. Working Papers 2005 + François Maréchal, Multi-objective Optimization of Energy Systems, 2005. + Daniel Favrat, François Maréchal, Edgard Gnansounou, and Alain Jenny, Quel potentiel pour les Biocarburants?, 2005.

Skills Process integration Process design Energy conversion and process modeling Rational Use of Energy Thermoeconomic optimisation Renewable Energy Teaching Mechanical Engineering Advanced energetics [en] (SPH SMTE SEL SGM SCGC SMX SEME) Advanced energy conversion technologies [en] Energy conversion [en] (SMX SPH SMTE SEME SEL SSIE) Energy powerplants [fr] (SMTE SEME SEL) Modelling and optimization of energy systems [en] (SPH SEME SEL SGM SSIE SCGC) Modelling, optimisation, design and analysis of integrated energy systems [en] Phd programs Energy (edoc) Phd Students Becker Helen Carla Bendig Matthias Dubuis Matthias Facchinetti Emanuele Fazlollahi Samira Gerber Léda Girardin Luc Henchoz Samuel Menon Ramanunni Parakkal Peduzzi Emanuela Pouransari Nasibeh Rager Jakob Teske Sinan Tock Laurence Cours Energetique Avancée et Moteurs Centrales thermiques Modélisation et optimisation des systèmes énergétiques researchid