Name: Jurjen Kranenborg (E.J. Kranenborg)
Born: 21 May 1967, Eenrum, The Netherlands
Family status: Married, three children
Contact: Please use the contact link in the menu at the right or down below.
Current employer & function description (from 15 June 2016 – now):
Name: NHL (Noordelijke Hogeschool Leeuwarden) University of Applied Sciences
Function: Lecturer Engineering: Embedded systems, Mechatronics, Transport Physics, Materials Science
Previous employer & function description (until 15 June 2016):
Name: ABB Germany (Bad Honnef), BU Power Products / Transformers
Function: Senior Principal Engineer & Power Transformer Global Architecture Team member (Thermal Domain responsible)
Global R&D, Strategy & Roadmap development, Technology Transfer, System Architecture, Software Engineering, Transformer design, Design optimization, Design Reviews, Computational Physics (CFD & Thermo-hydrodynamic network models), Fluid Dynamics, Heat Transfer, Mass Transfer, Materials Science, Reduced-Order modeling, Dynamical Systems Analysis, Electronics Hardware Design, Digital Electronics, Embedded systems, Microcontrollers and sensors, Technology Management , Standardization, Standards Development, Customer support (external & internal), Project Assessment (14x, Gate Model for progress decision), Special Education, Student Counseling.
- English (fluent),
- German (full professional proficiency),
- Swedish (fluent),
- Dutch (fluent, native)
Employment history with main responsibilities
ABB, Västerås, Sweden (2005 – 2014) & Bad Honnef, Germany (2014 – June 2016)
Formal positions in ABB:
- June 2015 – June 2016: Senior Principal Engineer, ABB Germany (Power Transformers), Bad Honnef
- October 2014 – May 2015: Principal Scientist, ABB Germany (Power Transformers), Bad Honnef
- August 2013 – September 2014: Team Leader (5 members) PPTR Technology Centre, ABB Corporate Research, Västerås, Sweden
- January 2010 – July 2013: Principal Scientist & Power Transformer Global Architecture Team member (50 % BU Medium & Large Power Transformers, 50 % ABB Corporate Research)
- April 2008 – December 2009: Senior Research Scientist, Västerås, Sweden
- April 2005 – March 2008: Research Scientist, Västerås, Sweden
Main tasks & responsibilities in ABB:
- Responsibility for ABB-internal design reviews on new strategically important transformer designs, failure cases and external (customer) design review support, using CFD, thermal network models and analytical modeling.
- Project leadership “Transformer Cooling” (four-person team). Main project activities included:
o Re-architecting thermal design software as part of major overhaul of transformer software design system (guarding requirements for physical, technical and user domain views in this process), foreseen as three-year project (2016 – 2018).
o Division Technology Manager assignment: Mapping and aggregation possibilities of physics simulation technologies and tools in the Transformers division.
- Power Transformer Global Architecture Team member (2010 – 2016), with the following responsibilities:
o Further development of the thermal area of the ABB-global transformer design architecture (TrafoStar) for ABB’s medium & large power transformers, with responsibility for technology, technical standards, guidelines and designer training on thermal design optimization.
o Development & implementation strategy for ABB thermal design software (design: thermo-hydrodynamic network models, analysis: CFD models + validation activities).
o Responsibility for thermal design road map and related project generation for ABB’s power transformers, as well as external publication policy.
- Coordinator & contact person of “Cooling Team” (2010-2016): informal team of 6 people from both Corporate Research and Product Group Transformers that works on all aspects of transformer thermal design , model development, implementation, verification and designer support), including coordination of Product Group and CRC strategies through strategic roadmap development.
- Team Leader, focusing on the implementation of a new PPTR-funded group of experienced research specialists (5 people) for better utilizing R&D competences in the transformer area and knowledge transfer between Corporate Research and the PPTR Division (August 2013 – September 2014).
- R&D to Product Group technology transfer (2015-2016): CFD transformer simulation in order design (designer training, service implementation & model delivery).
- Representation of ABB in international standardization workgroup (CIGRE WG A2.38, task force leader CFD simulation technologies).
- Project Assessor for project reviews (14 times up to now, as part of Gate Model applied to decision process for project follow-up).
- Customer contacts: support with factory audits & promotion of upgrade of design review process for power transformers for increased thermal reliability by design (e.g. Doble Customer Seminar, Dubai 2015, Cordoba Factory Audit by EDF customer, 2011).
- Proposer & supervisor of student projects (see separate section below).
Philips Research Eindhoven (Nat.Lab), The Netherlands (2000 - 2005)
Research Scientist, Software Architectures group
- Development of Software Architecture approaches (focus on Domain Modeling techniques)
- Application of domain modeling techniques on future consumer electronics applications
o Patterns for ambient intelligent systems definition (use case definition using Software Architecture patterns).
Waterloopkundig Laboratorium (now part of Deltares) (1998 – 2000)
- Advisor / Researcher at Delft Hydraulics, section Marine and Estuarine Systems,
- Practical work on water quality simulations, development/improvement on model toolset.
Free University of Amsterdam (1996 - 1998), Earth Sciences
- PostDoc Sedimentary Geology, Modeling relation of E. Huxleyii primary production and calcium-carbonate sedimentation for use in palaeo-oceanographic models of primary organic production and CO2 uptake.
- 1991 - 1996: Ph.D. Physics & Astronomy, Utrecht University (Prof. W.P.M De Ruijter & Prof. H.A. Dijkstra) on “Double-Diffusive Convection due to Lateral Thermal Forcing”.
- 1985 - 1991: M.Sc. Applied Mathematics, Twente University, Control functions for orthogonal numerical grid generation. (Prof. P.J. Zandbergen & Dr. B.H. Gilding), performed at Delft Hydraulics.
- Transformer Winding Oil Flow Rate & Hot Spot Temperature: A Straightforward Relationship?, CEPSI 2016 Conference of Electric Power Supply Industry, Bangkok, October 2016 (co-author, link).
- Hot Spot Determination in Transformer Windings through CFD Analysis, CIGRE WorkSpot VII Colloquium, Rio de Janeiro, 2014 (co-author, link).
- CFD study of non-guided laminar mixed convection of a high Prandtl number fluid in a transformer winding-like geometry, International Heat Transfer Conference, IHTC 15, Japan, 2014 (co-author, link).
- Considerations for the Design, Manufacture, and Retro-filling of Power Transformers with High Fire Point, Biodegradable Ester Fluids, CIGRE Paris 2012 Session, August 2012 (co-author, link)
- Biotemp® Transformers in the Modern Substation, CIGRE International Colloquium Transformer Research and Asset Management, Zagreb, May 2012 (co-author, link).
- Thermal modeling of power transformer radiators using a porous medium based CFD approach, THERMACOMP 2011, Dalian, China, 2011 (co-author, link).
- Numerical Study on Mixed Convection and Thermal Streaking in Power Transformer Windings, 5th European Thermal-Sciences Conference, The Netherlands, 2008 (first author, link).
- Modeling grain-size distributions, a comparison of two models and their numerical solution, Tectonophysics 320, 347--374, 2000 (co-author with T. Den Bezemer, H. Kooi and S. Cloetingh).
- Layer formation in double diffusive convection (overview article), in: Time-dependent Nonlinear Convection (Advances in Fluid Mechanics), ed: P.A. Tyvand, Computational Mechanics Publications, pp. 139-176, 1998 (co-author with H.A. Dijkstra and J. Molemaker).
- On the evolution of double-diffusive intrusions into a stably stratified liquid: A study of the layer merging process, Int. J. Heat Mass Transfer 41, 2743-2756, 1998 (first author, co-author: H.A. Dijkstra).
- On the evolution of double-diffusive intrusions into a stably stratified liquid: The physics behind self-propagating layers, Int. J. Heat Mass Transfer 41, 2113-2124, 1998 (co-author with H.A.Dijkstra).
- Double diffusive layer formation near a cooled liquid-solid boundary, Int. J. Heat Mass Transfer 41, 1873-1884, 1998 (first author, co-author: H.A. Dijkstra).
- A bifurcation study of double diffusive flows in a laterally heated stably stratified liquid layer, Int. J. Heat Mass Transfer 39, 2699-2710, 1996 (co-author with H.A. Dijkstra).
- The structure of (linearly) stable double diffusive flow patterns in a laterally heated stratified liquid, Phys. Fluids 7(3), pp. 680-682, 1995 (first author, co-author: H.A. Dijkstra).
- Double-diffusive Flow Patterns in the Unicellular Flow Regime: Attractor Structure and Flow Development, in: Double-Diffusive Convection, AGU Geophysical Monograph 94, eds: Fernando & Brandt, pp. 89-96, 1995 (first author, co-author: H.A. Dijkstra).
- WO-2015040213, Static Electric Induction System (link), 2015
- WO-2007069207, Access Control in a Network (link), 2006
- 2008 – 2016: Representing ABB in CIGRE Working Group A2.38 (“Thermal Modeling”), Taskforce Leader “CFD modeling”.
- 2012 – 2016: Reviewer, IEEE Transactions on Power Systems / Power Delivery.
Student supervisor projects:
Acting as project proposer & main supervisor on ABB-relevant areas (exploratory, outside of planned projects):
- Mattia Montanari (CNRS Nantes, France): Multi-physics CFD-based Reduced-Order Modeling Approaches Using Commercial Codes (2013).
- Yuhe Jiao (KTH Stockholm): CFD Study on the Thermal Performance of Transformer Disc Windings Without Oil Guides (2012).
- Maria Hjalmars (KTH Stockholm): Optimization Study on Oil Flow and Temperature Distribution in Power Transformer Windings Using Global Optimization Methods (2011).
Expertise on professional tools & standards:
- Fluid dynamics: ANSYS FLUENT, Gambit & WorkBench.
- Particle transport & EM modeling: Comsol MultiPhysics.
- Model prototyping: MatLab.
- Dynamical systems & continuation analysis: MatCont, CL_MatContL.
- Implementation and programming languages: Visual Studio + Visual Basic, Fortran.
- Office productivity: All main MS-Office tools, MS-Excel including writing of VBA-based scripting applications.
- Embedded: Microcontroller architecture, embedded protocols (I2C, SPI) and sensor technologies.
Value-proven professional courses:
- Project Management & Assessment (Gate Model)
- Customer-driven Value Creation: Value Model
- Semiprofessional activities on electronics / microcontrollers / sensor technology (website link):
o Proprietary network architecture combining power delivery and intelligent node communications using non-polarized two-wire connections (website link)
o Electronics introduction (microcontrollers) in primary schools
- Support to local scouting group (Uppsala, Sweden): financial responsibility
- Choir singing (Ten Toon, Groningen)