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Research Engineer Thermal Hydraulics

  • investigate how the cooling of MYRRHA can be guaranteed
  • challenging, multidisciplinary and international environment
  • mechanical engineering degree
  • permanent contract
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Join our R&D program supporting the design of the MYRRHA reactor!

SCK CEN works actively on the design and construction of a new multi-purpose research plant MYRRHA: a versatile and unique research infrastructure. It is the world's first research reactor driven by a particle accelerator. Unlike traditional reactors, cooling the reactor core is not done with water but using a liquid metal mixture of lead and bismuth. This mixture offers the advantage that it does not slow down the fission neutrons. These fast neutrons unlock a variety of applications.

For the R&D program supporting the design of the reactor part of the MYRRHA project, we are looking for a Research engineer.

You will build upon our in-house knowledge to develop and characterize new technologies in support of the design and licensing of MYRRHA. Supported by an experienced team of researchers and technicians, you will focus on thermal hydraulics and technology of the primary and secondary cooling circuits.You will investigate how the cooling of MYRRHA can be guaranteed using lead-bismuth and a water-steam mixture. To do so, you will:

  • interact with designers and safety analysts to define research programs
  • design and commission new experimental facilities to support your research
  • define and execute experimental campaigns, analyse, verify and report your results
  • use appropriate modeling tools (system thermal hydraulics/CFD codes) to support the definition, design and analysis process

To join this frontier, you'll need

  • a Master’s degree or PhD in engineering, preferably in mechanical engineering
  • at least 2 years’ experience with thermal hydraulics, mechanics, the design and commissioning of technological facilities and/or the execution of experimental programs
  • experience with the use of system thermal hydraulic codes and/or CFD codes are a strong plus
  • proven knowledge of two-phase flow systems will be considered as an advantage
  • good knowledge of information technology applications for technical/scientific purposes
  • good communication skills, enabling you to operate within a multidisciplinary and international team
  • fluent in English, both for daily communications and for internal and external (often international) reporting
  • flexible and open to work in an international environment, in collaboration with other teams at SCK CEN, with other research institutes and universities and within European and international research programs.


Evi Belmans
evi.belmans [at]