UNIVERSITA’ DEGLI STUDI DI PADOVA UIE -International Union for Electricity Applications SIG-E&R Education and Research AMPERE - Association for Microwave Power in Europe for Research and Education A.E.I.T.- Sezione Veneta IEEE-IAS/IES/PELS North Italy Joint Chapter _________________________________________________________________ HES-16 International Conference on Heating by Electromagnetic Sources Induction, Conduction, Dielectric and Microwaves & Electromagnetic Processing Padua, May 24-27, 2016 Organized by LEP – Laboratory for Electroheat - Padua Department of Industrial Engineering University of Padua (Italy) ____________________________________________________________ Programme Time schedule PADOVA Tuesday, May 24 PADOVA Wednesday, May 25 PADOVA Thursday, May 26 PADOVA Friday, May 27 9.00-10.30 Oral Session RMB 9.00-10.30 Oral Session NM 2 RF, Microwave Heating and Biomedical Applications Numerical Modeling of Induction Heating Processes 2 8.00-12.00 Late Registration 9.00–9.30 Welcome 9.30-11.30 Oral Session OS Opening Session 11.30 -12.00 Coffee break 10.30-11.30 Coffee break 10.30-11.00 Coffee break Poster Session P 2 12.00-13.30 Oral Session EPM 11.30-13.00 Oral Session SA 1 11.00-13.00 Oral Session MEL Electromagnetic Processing of Materials Special Applications 1 Melting and Heating 13.30-14.30 Lunch 13.00-14.00 Lunch 13.00-14.00 Lunch 14.30-19.30 14.00-15.00 Oral Session SA 2 14.30-16.00 Oral Session NM 1 Numerical Modeling of Induction Heating Processes 1 16.00-17.00 Coffee break Social event Boat trip to Venezia island – Murano and Torcello 17.00-18.30 Oral Session PE Power Electronics 15.00-16.30 Oral Session SIK SIKELOR workshop Poster Session P 1 18.00-19.30 Registration Special Applications 2 19.30-22.00 Gala Dinner Best poster award 16.30-17.00 Closing Session 19.00-21.00 Welcome reception 22.30 Boat to Padua 2 HES - 16 TECHNICAL PROGRAM I DAY May 25, 2016 (Wednesday) Welcome address 9:00 - 9:30 Chairman: Prof. Fabrizio Dughiero – University of Padova – Italy Session OS Opening Session 9:30 – 11:30 Chairmen: Prof. Bernard Nacke – University of Hannover – Germany Prof. Sergio Lupi – University of Padova - Italy OS - 1 The inclusion of coupled problems and high performance computing in the design of electromagnetic devices D.A.Lowther McGill University, McConnell Engineering, Montreal, Quebec, Canada OS - 2 Principles of Microwave Combination Heating for the Food Industry A. K Datta Cornell Univ., Ithaca, NY OS - 3 Induction heating for large scale crystal growth systems P. Dold CSP Fraunhofer, Halle, Germany OS - 4 Electromagnetic levitation, melting and magnetic induced crystal orientation of magnetotrictive alloys Jianguo Li Shanghai Jiaotong University, Shanghai, China OS - 5 Inductors and coils new production solutions using additive manufacturing such as EBM 3D printing and precision casting. A presentation of the current state of the art technologies. F. Marquis GH INDUCTION DEUTSCHLAND, Hessen, Germany GH ELECTROTERMIA S.A., Valencia, Spain 3 OS - 6 Striation effect in induction heating: myths and reality V. Nemkov, R. Goldstein Fluxtrol, Inc., Auburn Hills, USA Coffee Break (11:30-12:00) Session EPM Electromagnetic Processing of Materials 12:00 - 13:30 Chairmen: Prof. Aleksandr Nikanorov – Leibniz University Hannover - Germany Prof. Koen Van Reusel – University of Leuven - Belgium EPM - 1 Iterative model for shape prediction in levitation melting process A. Shoihet, Y. Frechter, V. Berdichevsky, M. Shvartsas, R. Rabinovici Nuclear Research Centre Negev, Israel Ben Gurion University of the Negev, Beer-Sheva, Israel EPM - 2 Effect of M-EMS on in-mould transient flow during continuous casting L. Marioni, J. Alves Z., F. Bay, E. Hachem MINES ParisTech, Sophia Antipolis, France EPM - 3 Electromagnetic stirring of complex reactive metal alloys R. Haun, P. Meese, O. Leland Retech Systems, LLC, Ukiah, USA EPM - 4 MHD direct current liquid metal pump: numerical simulation and experimental study N. P. Kandev Institut de recherche d'Hydro-Quebec (IREQ), Shawinigan, Quebec, Canada EPM - 5 Lattice Boltzmann modelling for multiphase bubble flow in electroconducting liquids A. Tatuļčenkovs, A. Jakovičs, F. Baake, B. Nacke University of Latvia, Riga, Latvia Leibniz University of Hannover, Hannover, Germany EPM - 6 Dispersion of nanoparticles in steel melt by superimposed steady and alternating magnetic fields M. Sarma, S. Miran, I. Grants, G. Gerbeth Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany University of Latvia, Salaspils, Latvia 4 Lunch (13:30-14:30) Session NM1 Numerical Modeling of Induction Heating Processes 1 14:30 - 16:00 Chairmen: Prof. Valentin Nemkov – Fluxtrol – USA Prof. Yulia Pleshivtseva – University of Samara – Russia NM 1 - 1 Influence of the magnetic permeability on modeling of induction surface hardening J. Barglik, A. Smalcerz Silesian University of Technology, Katowice, Poland NM 1 - 2 A benchmark problem of induction heating analysis P. Di Barba, M.E. Mognaschi, D.A. Lowther, F. Dughiero, M. Forzan, S. Lupi, E. Sieni University of Pavia, Pavia, Italy McGill University, Montreal, Canada Padova University, Padova, Italy NM 1 - 3 Mapping of magnetic properties for simulations of high temperature electromagnetic applications V. Akujärvi, T. Cedell, K. Frogner, M. Andersson Lund University, Lund, Sweden NM 1 - 4 Approaches for numerical modelling of induction heating systems with ferromagnetic materials A. Nikanorov, B. Nacke Leibniz Universität Hannover, Hannover, Germany NM 1 - 5 Improving the accuracy of time-harmonic FE simulations in induction heating applications: towards better model of ferromagnetic materials K. McMeekin, F. Sirois, M. Tousignant, P. Bocher Polytechnique Montréal, Montreal, Canada École de Technologie Supérieure (ÉTS), Montreal, Canada NM 1 - 6 Numerical models of molten glasses electric conduction heating and controlled electromagnetic stirring V. Fireteanu, S. Pasca, M. Popa POLITEHNICA University of Bucharest, Bucharest, Romania University of Oradea, Oradea, Romania Poster Session P 1 and Coffee Break (16:00-17:00) 5 Session PE Power Electronics 17:30 – 18.30 Chairmen: Prof. Oscar Lucia – University of Saragoza - Spain Prof. Michele Forzan – University of Padova – Italy PE - 1 Modern trends on the design of induction heating power supplies using wide bandgap power semiconductors O. Lucía, H. Sarnago, J.M. Burdio University of Zaragoza, Zaragoza, Spain PE - 2 Quality control in inductive hardening by measuring the inductor voltage drop over time D. Schlesselmann, C. Krause, H. Krötz EMAG eldec Induction GmbH, Dornstetten, Germany PE - 3 Resonant power supply for induction heating applied to the optimization of Litz wire manufacture A. Naval, H. Sarnago, I. Lope, O. Lucía, J.M. Burdio University of Zaragoza, Zaragoza Spain BSH Home Appliances Group, Zaragoza Spain PE - 4 Refined model of resonant inverters including phase shift for the modelisation of induction heating of billets B. Paya EDF R&D division, Moret sur Loing cedex, France PE - 5 Process optimization by multiple frequency design of induction hardening processes for automotive parts A. Ulferts, F. Andrae, V. Tosetto Inductoheat Europe GmbH, Reichenbach Fils, Germany Inductotherm Group Italy S.r.l., Torino, Italia 6 II DAY May 26, 2016 (Thursday) Session RMB RF, Microwave Heating and Biomedical Applications 9:00 - 10:30 Chairmen: Prof. Ashim K. Datta - Cornell University – USA Prof. Robert Ivkov – John Hopkins University - USA RMB - 1 Low reflection microwave reactor for chemical synthesis L. A. Jermolovicius, E. V. S. Pouzada, R. B. do Nascimento, A. R. Stefanelli, E. R. de Castro, J. L. Fejfar, J. T. Senise Instituto Mauá de Tecnologia IMT, São Caetano do Sul, Brazil RMB - 2 Some developments on metal-ceramic composite castings by microwave energy S. Singh, D. Gupta, V. Jain Thapar University, Punjab, India RMB - 3 Microwave heating of a thin laminate composite part H. Tertrais , A. Barasinski, Ch. Ghnatios, F. Chinesta GeM- Ecole Centrale Nantes, Nantes, France Notre Dame University-Louaize, Zouk Mosbeh, Lebanon ICI - Ecole Centrale Nantes, Nantes, France RMB - 4 Influence of the damage of a microwave choke: numerical reconstruction and evaluation on a human body C. Bianchi, F. Dughiero Padova University, Padova, Italy RMB - 5 Iron oxide/PLGA nanoparticles for magnetically controlled drug release M. R. Ruggiero, S. Geninatti Crich, E. Sieni, P. Sgarbossa, E. Cavallari, R. Stefania, F. Dughiero, S. Aime University of Turin, Torino, Italy University of Padua, Italy RMB - 6 Design and simulation of the electromagnetic heating of a biological tissue M. Ostroushko, A. Buchau, W. M. Rucker Universität Stuttgart, Stuttgart, Germany Poster Session P 2 and Coffee Break (10:30-11:30) 7 Session SA 1 Special Applications 1 11:30 - 13:00 Chairmen: Prof. Jerzy Barglik – University of Katowice - Poland Prof. Egbert Baake – University of Hannover – Germany SA 1 - 1 Computation of eddy currents in highly conductive particles dispersed in a moderately conductive matrix E. Rognin, G. Barba Rossa, P. Brun, E. Sauvage, J. Lacombe CEA, DEN, DTCD, SCDV, LDPV BP, Bagnols-sur-Ceze, France SA 1 - 2 Low-pressure formed FeSi coated powder-ceramic binder soft magnetic composites for induction heating applications O. Gutnichenko, T. Cedell, L. Siesing, M. Andersson Lund University, Lund, Sweden SA 1 - 3 Induction heating of carbon fiber composites -Limitations, challenges and opportunities F. Lundström, K. Frogner, O. Wiberg, T. Cedell, M. Andersson Lund University, Lund, Sweden SA 1 - 4 Optimization of the magnetic field for Lorentz force velocimetry D. Terzijska, U. Lüdtke Technische Universität Ilmenau, Ilmenau, Germany SA 1 - 5 New process for continuous melting and pouring of oxides with skull melting crucible B. Nacke, V. Kichigin, I. Poznyak Leibniz Universität Hannover, Hannover, Germany St. Petersburg State Electrotechnical University, St. Petersburg, Russia SA 1 - 6 Performance improvement in the induction heating of large magnetic steel slabs through a DC saturating field M. Fabbri, A. Morandi University of Bologna, Bologna, Italy Lunch (13:00-14.00) Social event (14:30 – 24.00) 8 III DAY May 27, 2016 (Friday) Session NM 2 Numerical Modeling of Induction Heating Processes 2 9:00 - 10:30 Chairmen: Prof. Philippe Bocher-École Technologie Supérieure-Canada Prof. Ivo Dolezel – University of West Bohemia – Czech Republic NM 2 - 1 Design concepts of induction mass heating technology based on multiple-criteria optimization Yu. Pleshivtseva, E. Rapoport, B. Nacke, A. Nikanorov, P. Di Barba, M. Forzan, S. Lupi, E. Sieni Samara State Technical University, Samara, Russia Leibniz Universität Hannover, Hannover, Germany University of Pavia, Pavia, Italy University o Padua, Padova, Italy NM 2 - 2 An improved particle swarm optimization applied to transverse flux induction heating problem B. Li, Y. Wang, L. Yin, P. Ding Hebei University of Technology, Hongqiao District, Tianjin City, China NM 2 - 3 Induction heating in estimation of thermal properties of a conductive materials J. Zgraja, A. Cieślak Lodz University of Technology, Lodz, Poland NM 2 - 4 Inverse technique for determining temperature dependence of material properties D. Panek, V. Kotlan, R. Hamar, I. Dolezel University of West Bohemia, Plzen, Czech Republic Czech Technical University, Praha, Czech Republic NM 2 - 5 Mathematical modeling of electromagnetic processes in modern electric arc furnaces V.A. Serikov, R.A. Bikeev, V.S. Cherednichenko Novosibirsk State Technical University, Novosibirsk, Russia NM 2 - 6 Non−linear model order reduction for the fast solution of induction heating problems in time−domain L. Codecasa, P. Alotto, F. Moro Politecnico di Milano, Milano, Italy Università di Padova, Padova, Italy Coffee Break (10:30 – 11:00) 9 Session MEL Melting and Heating 11:00 – 13.00 Chairmen: Prof. Francois Bay – Ecole des Mines de Paris – France Prof. Valdis Bojarevics – University of Greenwich – UK MEL - 1 Heat transfer in sandwich smart textiles V. Kotlan, K. Pavlicek, I. Dolezel, R. Soukup, L. Kupka University of West Bohemia, Plzen, Czech Republic MEL - 2 Quadheater - Uniform heating with transversal induction coils T. Cedell, K. Frogner, M. Andersson Lund University, Lund, Sweden MEL - 3 A method for optimization of an induction hardening process A. Sahlin, V. Deshmukh, W. Datchary AB SKF, Manufacturing Development Centre, Gothenburg, Sweden MEL - 4 Novel technology for induction preheating of billets for extrusion processes P. Turewicz, R. Schuller EMA Indutec GmbH, Meckesheim, Germany Russ Elektroofen GmbH & Co. KG, Hemer, Germany MEL - 5 Influence of SEN depth and port angle on control effects of vertical electromagnetic brake Z. Li, Y. Xu, L. Xu, E.G. Wang Northeastern University, Shenyang, P. R. China MEL - 6 Temperature history modeling and validation of fast induction hardening process A. Senhaji, B. Larregain, N. Vanderesse, P. Bocher École de technologie supérieure, Montréal, Canada MEL - 7 The dynamics of electromagnetic and thermal processes in the longitudinal and transverse flux induction systems for welded strips K. Blinov, A. Nikanorov, B. Nacke St. Petersburg Electrotechnical University, St. Petersburg, Russia Leibniz Universität Hannover, Hannover, Germany Lunch (13:00-14:00) 10 Session SA 2 Special Applications 2 14.00 – 15.00 Chairmen: Prof. Sergei Galunin – St. Petersburg State Electrotechnical University - Russia Prof. Tord Cedell – Lund University - Sweden SA 2 - 1 Numerical modeling of induction heated multi-zones rubber vulcanization process W. Ebel, A. Nikanorov, E. Baake Leibniz Universität Hannover, Hannover, Germany SA 2 - 2 Bituminous waterproofing membrane applicable with induction heating technology & relevant equipment A. Baseggio, M. Drigo, F. Dughiero, N. Lanza, M. Zerbetto, L. Zottarel General Membrane SpA, Ceggia (VE), Italy Indipendent Consultant, Treviso, Italy Università Padova, Padova, Italy Inovalab srl, Padova, Italy SA 2 - 3 E–H mode transition of an inductively coupled plasma torch at atmospheric pressure G. Chichignoud, Y. Delannoy, F. Cocco, P. Rivat, L. Natale Univ. Grenoble Alpes, SIMAP, Grenoble, France CNRS, SIMAP, Grenoble, France FerroPem, Chambéry France Saet S.p.A., Leinì (TO), Italy SA 2 - 4 Parametric investigation on localized induction heating of thick steel plates A. Bailini, D. Rossin, P. Bargero, D. Doni, A. Calzavara, A. Doni, F. Freschi BlueThink S.p.A., Milano Italy Saipem S.p.A., San Donato Milanese Italy InovaLab S.r.L., Padova Italy, Politecnico di Torino - Department of Energy, Torino, Italy Session SIK SIKELOR workshop 15.00 - 16:30 Chairmen: Prof. Jerzy Zgraja - Lodz University of Technology- Poland Prof. Andris Jakovics - University of Latvia - Latvia SIK - 1 Numerical modelling of Silicon melt purification in induction directional solidification system G. Djambazov, V. Bojarevics, K. Pericleous, M. Forzan University of Greenwich, London, United Kingdom Università degli Studi di Padova, Padova, Italy 11 SIK - 2 Particle tracking in silicon ingot casting with AC magnetic field V. Bojarevics University of Greenwich, London, UK SIK - 3 Combined experimental and numerical study of a low Reynolds number alternating magnetic field driven flow in a small aspect ratio container A. Cramer, V. Galindo, M. Zennaro, S. Eckert, M. Forzan Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany Università degli Studi di Padova, Padua, Italy SIK - 4 A new power supply for stirring, heating and separation M. Kroschk, A. Nickel EAAT GmbH Chemnitz, Chemnitz, Germany SIK - 5 A novel technology to improve recycled silicon feedstock from sawing kerf for PV applications I. Lombardi Garbo Srl, Cerano (NO), Italy SIK - 6 Directional solidification experiments Demonstrator of SIKELOR Project on G2.5 i-DSS furnace - K. Brunelli, F. Dughiero, M. Forzan, I. Lombardi, A. Marconi, S. Wen, M. Zordan University of Padova, Padova, Italy Garbo Srl, Cerano (NO), Italy Dalian University of Technology, Ganjingzi, China Closing Session 16.30-17.00 12 POSTER Session P 1 Poster May 25, 2016 (Wednesday) 16:00 - 17:00 Chairmen: Prof. Fabrizio Dughiero – University of Padova – Italy Prof. Engang Wang - Northeastern University – R. P. China P1-1 Influence of magnetic field on gas bubbles flow in liquid metal S. Pavlovs, A. Jakovics, E. Baake, V. Sushkovs University of Latvia, Riga, Latvia Leibniz University of Hannover, Hannover, Germany P1-2 Large scale electromagnetic levitation melting of metals S. Spitans, E. Baake, A. Jakovics ALD Vacuum Technologies GmbH, Hanau, Germany Leibniz University of Hannover, Hannover, Germany University of Latvia, Riga, Latvia P1-3 Numerical modeling of bubble dynamics in liquid metal exposed to electromagnetic fields for hydrogen production T. Fehling, T. Steinberg, E. Baake Leibniz University of Hannover, Hannover, Germany P1-4 Effect of electric field and magnetic field on metal anodizing behavior T. Kozuka, W. P. Sigit, S. Fukuda, C. Iihoshi, M. Kawahara Kumamoto University,Kurokami, Kumamoto, Japan P1-5 Research of characteristics of the linear inductors for heating of steel ferromagnetic plates and tubes A.B. Kuvaldin, M.L. Strupinskiy, N.N. Khrenkov, M.A. Fedin Special Systems and Technologies, LLC, Mytischi, Moscow region, Russia National research university “Moscow Power Engineering Institute”, Moscow, Russia P1-6 3-D finite element modelling of distortions in induction heat treatment processes F. Bay, J. Barlier MINES ParisTech, Sophia Antipolis, France TRANSVALOR, Sophia Antipolis, France P1-7 Development of 3D mathematical model of induction crucible furnace with lumpy charge on using finite elements method A.B. Kuvaldin, M.A. Fedin, E.P. Kasatkina, O.A. Polyakov National Research University "Moscow Power Engineering Institute", Moscow, Russia P1-8 Numerical simulation of induction heater for hardening of tapered leading gear wheel S. Galunin, M. Kudryash, T. Kozulina, Yu. Blinov St. Petersburg Electrotechnical University, St. Petersburg, Russia 13 P1-9 Numerical modeling of hybrid laser welding taking into account phase change of material I. Dolezel, V. Kotlan, R. Hamar, D. Panek University of West Bohemia, Plzen, Czech Republic P 1 - 10 Edge effect of load in transverse flux induction heating systems A. Zenkov, A. Ivanov, V. Bukanin, V. Nemkov St. Petersburg Electrotechnical University, Saint-Petersburg, Russia Fluxtrol, Inc., Auburn Hills, Michigan, USA P 1 - 11 Free-surface dynamics in the Ribbon Growth on Substrate (RGS) process P. Beckstein, V. Galindo, G. Gerbeth Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany P 1 - 12 Analytical model of a finite solenoid coil in an induction heating device B. Paya EDF R&D division, Moret sur Loing cedex, France P 1 - 13 Experience and perspectives of using ELTA programs for teaching induction heating A. Zenkov, A. Ivanov, V. Bukanin, V. Nemkov, M. Pervukhin, V. Timofeev St. Petersburg Electrotechnical University, Saint-Petersburg, Russia Fluxtrol, Inc., Auburn Hills, Michigan, USA Siberian Federal University, Krasnoyarsk, Russia National mineral resources university, St. Petersburg, Russia P 1 - 14 A neural network identifier for electromagnetic thermotherapy systems Cheng-Chi Tai, Wei-Cheng Wang, Yuan-Jui Hsu National Cheng Kung University, Tainan, Taiwan, R.O.C. Session P2 Poster May 26, 2016 (Thursday) 10:30 - 11:30 Chairmen: Prof. Michele Forzan – University of Padova – Italy Prof. Claudio Carretero – University of Zaragoza - Spain P2-1 Self-adaptive NSGA algorithm and optimal design of inductors for magnetofluid hyperthermia P. Di Barba, F. Dughiero, M. Forzan, E. Sieni University of Pavia, Pavia, Italy Padova University, Padova, Italy P2-2 Comparison of magnetic and heating properties of iron oxide nanoparticles for hyperthermia R. Bertani, L. Del Bianco, F. Dughiero, M. Forzan, M. Mozzon, P. Sgarbossa, E. Sieni, F. Spizzo University of Padova, Padova, Italy University of Ferrara, Ferrara, Italy 14 P2-3 Influence of a cold crucible system geometry on electrical efficiency S. Golak, R. Przylucki, J. Smolka, P. Bulinski Silesian University of Technology, Katowice, Poland Silesian University of Technology, Gliwice, Poland P2-4 Numerical simulation of titanium alloy non-crucible melting in the alternating electromagnetic field V. Demidovich, M. Khatsayuk, V. Timofeev, A. Maksimov, I. Rastvorova Saint-Petersburg Electrotechnical University, St. Petersburg, Russia Siberian federal university, Krasnoyarsk, Russia P2-5 Energy efficiency of induction hardening installations B. Nacke Leibniz Universität Hannover, Hannover, Germany P2-6 The use of a magnetic suspension for the crucibleless metal melting K. Kim, T. Titova Petersburg State Transport University, Saint Petersburg, Russia P2-7 Effects of transformation-induced plasticity on residual stress distribution during induction hardening J. Hodek, N. Gökpinar COMTES FHT, Dobrany, Czech Republic STEINHOFF GmbH & Cie. OHG, Dinslaken, Germany P2-8 Magnheat: induction heater with rotating permanent magnets for energy efficient aluminium heating F.Dughiero, M.Forzan, M. Zerbetto University of Padova, Padova, Italy InovaLab s.r.l., Padova, Italy P2-9 Study of the equivalence among strands in PCB Litz-wire inductors applied to domestic induction heating I. Lope, C. Carretero, J. Acero, J. Serrano, J.M. Burdío Department of Electronics Engineering and Communications, Zaragoza, Spain BSH Home Appliance Spain, Zaragoza, Spain University of Zaragoza, Zaragoza, Spain P 2 - 10 Electroplastic effect in stainless steels: experimental study on AISI 316L and AISI 430 in uniaxial tension M. Breda, I. Calliari, M. Forzan, C. Gennari, F. Michieletto, M. Spezzapria University of Padua, Padova, Italy P 2 - 11 Emissivity compensated infrared thermometry for planar materials M. Osta, C. Carretero, P. Blasco, E. Carretero, R. Alonso Universidad de Zaragoza, Zaragoza, Spain 15 P 2 - 12 Improving efficiency of light and dark infrared radiators and low pressure gas discharge radiators with complex waveform current supply E. Ptitsyna, D. Ptitsyn, A.Kuvaldin Omsk State Technical University, Omsk, Russia National Research University «Moscow Energy Institute», Moscow, Russia P 2 - 13 Construction improvement of the thermoelastic clutch based on shape optimization L. Koudela, V. Kotlan, I. Dolezel University of West Bohemia, Plzen, Czech Republic Czech Academy of Sciences, Praha, Czech Republic SA 1 - 7 Versatile multi-resonant power supply for advanced induction heating processes H. Sarnago, O. Lucía, J.M. Burdio University of Zaragoza, Zaragoza Spain P 2 - 14 Modelling and verification of heat transfer coefficient for induction applications S. Schubotz, B. Nacke EFD Induction GmbH, Freiburg im Breisgau, Germany Leibniz Universität Hannover, Hannover, Germany P 2 - 15 Investigation of induction heating of circular cross-section workpieces by rotated permanent magnets A. Aliferov, R. Bikeev, D. Vlasov, A. Morev Novosibirsk State Technical University, Novosibirsk, Russia 16