Research at EPF



Established in 2012, the axis Energy focuses on scientific issues in the field of :

  • Energy production;
  • Energy efficiency in buildings

The Assistant Professors of axis 3 carries out their research at l’Institut d’Electronique et des Systèmes (IES) at the l’University Montpellier 2 and to the laboratory CREIDD at UTT (Troyes).


1/Energy production

Concentrated Photovoltaic (CPV)

  • Durability of solar cells under high concentrations and dissipation of thermal effects;
  • Characterization of new generation CPV cells (thermal conductivity measurements);


Thermal Energy Production

  • Development of micro-sources of energy from lost ambient energy (mechanical vibration) to power sensors and smart devices;
  • Modeling storage solution and energy recovery of the energy dissipated in electronic systems;
  • Development of cooling solutions: passive solutions (Phase Change Materials) and solar refresh (Stirling, absorption machine).


Développement et optimisation des systèmes de rafraîchissement


2/ Energy efficiency in buildings

Materials and modeling

  • Characterization of the properties of materials used in green building;
  • Multiscale dynamic modeling - from the wall to the building - of the building behavior.

Efficacité énergétique dans les bâtiments

Efficiency and Comfort

  • Design and production of low-cost sensors to measure energy efficiency and to study thermal comfort;
  • Image analysis for anomaly detection (heat...) in the habitat through probabilistic approaches;
  • Study of thermal comfort for the assessment of human feeling, integrated with an energy audit tool building;

Efficacité et Confort




Nicolas Camara

Nicolas CAMARA : Nicolas Camara got in 2001 a Physics degree from the National School of Engineering at Marseille (Ecole Centrale Marseille) and in 2006 a PhD in GPEI laboratories (INP-Grenoble) and FORTH (University of Crete) Micro-Nano Electronics. From 2007 to 2010, Nicolas Camara performed a postdoctoral stay at the Barcelona Microelectronics National Center on topics related to innovative semiconductor materials for power electronics (Silicon Carbide) and nanoelectronics (Graphene). After a year as ATER at the University of Montpellier (Laboratory Charles Coulomb), he obtained in 2011 a position as Lecturer at the University of Tours and conducted his research at the GREMAN laboratory in the field of recovery of energy via piezoelectric nanowires.

Since September 2016, Nicolas Camara has been performed its research at EPF Montpellier in collaboration with IES laboratory (University of Montpellier) for the implementation of micro energy sources, essential brick in the deployment of autonomous communicating sensors networks.

Mots clés : Nanotechnology, Semi conductors, Microelectronics, Energy Recovery.



Antoine Gademer

Antoine GADEMER :  Antoine Gademer obtained in 2005 a degree from ESIEA Engineer. He then obtained a Master in Geographic Information Science (UMLV / ENSG) and a PhD in CGWG laboratories (University of Paris-Est) and ATIS (ESIEA) in the field of Geographic Information Science.
Antoine GADEMER performs its research at IES. His research activities are involved in the implementation of a complex sensor (heat, humidity…) designed by the IES Laboratory for mapping the EPF building of Troyes and a Montpellier building. This project will benefit from a carrier (rolling indoor, flying outdoors) able of ego-localization to automate and geotag the measurement.

Keywords: Algorithms and Programming, Digital Electronics, Remote Sensing, Micro Robotic Exploration (UGV, USV, UUV, UAV) Payload specialist, Image processing. 


Nadia Martaj

Nadia MARTAJ : Nadia Martaj obtained a Master of Science and Technology in Energy in 2000 at the Faculty of Sciences and Techniques Casablanca (Morocco). She then obtained in 2004 a Master in Mechanical Engineering and Thermal at the University of Paris Ouest (Nanterre-La Défense). She received a PhD in 2008 at the laboratory LEME laboratory (power engineering, mechanics and electromagnetism laboratory) in the specialty Energy / Process Engineering. Since 2012, she is a teacher and researcher at the EPF Montpellier.
Nadia MARTAJ currently conducts her research at EPF Troyes. Her research areas include simulation of thermal performance of buildings, photovoltaic cells, Stirling engines, energy optimizations and refrigeration machines.

Keywords: Simulation, Optimization, Stirling engine, Building Energy, Photovoltaic Cells, Renewable Energy.


Abdelatif Merabtine

Abdelatif MERABTINE : Abdelatif Merabtine received in 2008 an engineering degree in Mechanical Engineering at the National Technical University (Algiers). He then obtained a Master degree in Energetics and Propulsion Aerospace at the University of Paris Ouest (Nanterre) and a PhD from the University of Lorraine (Nancy) in the field of energy the building.
Abdelatif Merabtine conducts its research within the Institute Charles Delaunay (CREIDD Laboratory) at the University of Technology of Troyes. His research activities concern the study of the energy behavior of the envelope and energy systems related to the building for energy optimization.

Keywords :  heat transfer, heat the building systems approach, building energy efficiency.


Sandrine Pincemin

Sandrine PINCEMIN : Sandrine Pincemin received in 2002 an Engineering degree in Mechanical Specialty Energetics at Polytechnic School of Marseille. She then obtained in 2007 a PhD in Process Engineering at PROMES laboratory (Perpignan) the field of composite materials with high energy performance for energy storage. She worked from 2007 to 2012 as an engineer at CSTB Studies & Research Division Renewable Energies in the field of energy storage (Thermal and Electric) for the buildings with low energy and positive energy.

Sandrine PINCEMIN currently conducts her research in the IES laboratory (UMR CNRS 5214) at the University of Montpellier 2. Her research interests concern the production of electricity by photovoltaic solar cell concentration, and the building Mediterranean (identifying the needs of the Mediterranean building, cold production in the Mediterranean region, and thermal / electrical modeling of the Mediterranean building and optimization).

Keywords:  Simulation, optimization, solar cells concentration, Energetics Building, Renewable Energy



The research activities in axis Energy  are carried out within the IES laboratory, in collaboration with the LEME laboratory at the University of Paris Ouest-Nanterre-La Défense, the LMT Laboratory of ENS Cachan and in the CREIDD laboratory at UTT.. 


In order to model and simulate thermal machines integrated in the building, axis Energy is using the following software:

  • MATLAB / Simulink / SimPowerSystems: modeling and simulation of complex dynamic systems;
  • LabVIEW: development of acquisition applications, measurement data and control analysis;
  • COMSOL Multiphysics: modeling and optimization of thermal systems (machines, buildings, etc.).

Axis Energy  is involved in the equipment of the new low energy building of EPF at Troyes campus by sensors (temperature, light, humidity, CO2) thanks to regional funding (CG 10 Grand Troyes). This building could be used as full-scale facility for thermal studies concerning the comfort of the occupant.

EPF wishes to develop, on the campus of Montpellier, an energetic laboratory with test facilities targeted around the activities outlined above.



1. Books

  1. N. Martaj, M. Mokhtari, “Apprendre et maîtriser LabVIEW par ses applications”, ISBN 978-3-642-45335-9, Ed. Springer, 2014.
  2. S. PINCEMIN, participation à l’ouvrage "Le stockage de l’énergie", livre coordonné par P. Odru, Dunod., 2e édition 2013.


2. International peer reviewed journals

  1. N. Martaj, P. Rochelle, "1D modelling of an alpha type Stirling engine", International Journal for Simulation and Multidisciplinary Design Optimization (IJSMDO), Volume 5, A07, 2014
  2. N. Martaj, L. Grosu, P. Rochelle, A. Mathieu, M. Feidt, “Simulation of a Stirling engine used for a micro solar power plant : 0-D modelling, comparison with 1-D modelling”, Environmental Engineering and Management Journal (EEMJ), accepté en septembre 2014.
  3. H. Park; M. Ruellan; N. Martaj; R. Bennacer; E. Monmasson,“Generic Thermal Model of Electrical Appliances In Thermal building: Application to the Case of a Refrigerator”, Energy and Buildings 62 p. 335–342, 2013.
  4. H. Park, N.Martaj, M.Ruellan, R. Bennacer and Eric Monmasson, “Thermal Modeling of a Building System and its Parameter Identification”, JEET, Journal of Electrical Engineering & Technology, Vol. 8, No. 6, ISSN:1975-0102, 2013.
  5. A. Merabtine, R. Benelmir, El Ganaoui M. "Pseudo-bond graph model for the analysis of the thermal behavior of buildings", Thermal Science, 17(3) 723-732, 2013. 
  6. A. Merabtine, R. Benelmir, "Modeling of the RHC system with Bond Graphs approach", International Journal of Thermal and Environmental Engineering,  5(2) 145-153, 2013.


3. International/national  peer reviewed conferences

  1. N. Martaj, P. Rochelle, "Modélisation 1D d’un moteur Stirling de type Alpha", colloque francophone en énergie, environnement, économie et thermodynamique, COFRET'14, CNAM Paris, 23-25 avril2014.
  2. E. Giudicelli, N. Martaj, R. Bennacer, Y. Cuminal, et P. Combette,"Caractérisation thermique des cellules photovoltaïques multi-jonctions par la méthode 3w", Congrès Français de thermique, SFT'14, Lyon, 3-6 juin 2014.
  3. S. Pincemin, E. Giudicelli, N. Martaj, A. Perona, Y. Cuminal, "Multi-junction PV cells based on antimonide materials for concentrated solar application : study of the thermal behavior", Proceeding of CPV 10 international conference, Albuquerque, 2014.
  4. E. Giudilli, N. Martaj, A. Perona, S. Pincemin and Y. Cuminal, “Study of the thermal behavior of solar cells based on GaAs», International COMSOL Conference, Rotterdam, 2013.
  5. H. Park, N.Martaj, M.Ruellan, R. Bennacer and Eric Monmasson, “Thermal Modeling of a Building System and its Parameter Identification”, JEET, Journal of Electrical Engineering & Technology, Vol. 8, No. 6, ISSN:1975-0102, 2013.
  6. N. Martaj, L. Grosu, P. Rochelle, Modélisation 1D d'un moteur Stirling de type Alpha, poster SFT,2013.


4. Conferences - Seminars - Courses


Congrès des Matériaux Montpellier 24 Novembre- 28 Novembre 2014