Skip to main content

SUNRISE: work plan

The work to be accomplished in SUNRISE is partitioned into five work packages. Below, a brief description of each work package is given, together with a list of associated tasks.

WP1: Design and safety analysis of a lead-cooled research reactor

Here, the design and safety analyis of a lead-cooled research and demonstration reactor intended to be located in Oskarshamn is carried out. The goal is to, with the support of external organisations, complete a PSAR (Preliminary Safety Analysis Report) of the reactor that may be submitted to the Swedish Radiation Safety Authority (SSM) as part of an application to build such a reactor, if funding from other sources is obtained.

The work package is lead by Professor Janne Wallenius (KTH) and Dr Sara Bortot (KTH), supported by Anders Blennermark from Blykalla. PhD student Fredrik Dehlin is carrying out the main part of the work, together with PhD guest student Guan Wang, and MSc students Alessandro Persico and Guillem Sanchis Ramirez. 

Janne Wallenius
Janne Wallenius
Fredrik Dehlin
Fredrik Dehlin
Sara Bortot
Sara Bortot
Guillem Sanchis Ramirez
Guillem Sanchis Ramirez
Anders Blennermark
Anders Blennermark
Guan Wang
Guan Wang
Alessandro Persico
Alessandro Persico

WP2: Development and modelling of advanced steels

In this work package, alumina forming steels and materials for pump impellers will be optimised, with support of thermodynamical modelling. Test samples and component prototypes are manufactured for mechanical, erosion and irradiation tests. Modelling of irradiation performance, embrittlement and interaction between lead and aluminium oxide is carried out using ab initio methods and multi-scale approaches. 

The work package is lead by Professor Pär Olsson (KTH) and Dr Peter Szakalos (KTH).

PhD student Christopher Peterson (KTH) is performing mechanical testing of alumina forming steels in lead.

Pär Olsson
Pär Olsson
Christopher Peterson
Christopher Peterson
Peter Szakalos
Peter Szakalos

WP3: Development and testing of novel materials, coatings and manufacturing techniques

In WP3, novel coatings and coating techniques will be developed for protection of components exposed to lead. Simulated fission product nitride powders are produced for manufacture of uranium nitride simfuel in WP4. Fretting tests of alumina forming steels will be performed in a liquid lead environment. Laser welding test of alumina forming steel overlays on SS316 and 15-15Ti tubes will be conducted.

The work package is lead by Professor Marta-Lena Antti (LTU) and Professor Gunnar Westin (UU). Senior scientist involved are Associate professor Jens Hardell (LTU), Professor Farid Akhtar (LTU), Jan Frostevarg (LTU), Leonardo Pelcastre (LTU), Post-docs Hadi Torkamani (LTU), Sarmad Katea (UU), and PhD students Daria Kolbas (LTU) and Paul Gruber (LTU).

Marta-Lena Antti
Marta-Lena Antti
Jens Hardell
Jens Hardell
Gunnar Westin
Gunnar Westin
Jan Frostevarg
Jan Frostevarg
Farid Akhtar
Farid Akhtar
Hadi Torkamani
Hadi Torkamani
Leonardo Pelcastre
Leonardo Pelcastre
Paul Gruber
Paul Gruber
Daria Kolbas
Daria Kolbas
Sarmad Naim Katea
Sarmad Naim Katea

WP4: Nuclear fuel development

Here, uranium nitride fuel pellets incorporating simulated fission products will be manufactured using spark plasma sintering techniques. A range of porosities will be produced in order to mimic the effect of bubble formation. The fission products will be introduced using a variation of methods, including such developed in WP3. The degradation of fuel performance with burn-up will be assessed by measurement of heat capacity, thermal diffusivity and thermal expansion of manufactured simfuel samples.

Fuel-cladding and fuel-coolant interdiffusion experiments are carried out to determine the impact of fission products, and rod-leak tests will be conducted to assess the performance under accident conditions.

Furthermore, a thermodynamic assessment of fuel-cladding-coolant systems will be made, leading to the establishment of a thermodynamic database.

The work package is lead by Professor Malin Selleby (KTH) and Dr Denise Adorno Lopes (Westinghouse). Postdocs involved are Sobhan Patnaik and Faris Sweidan. PhD student Elina Charatsidou is going to manufacture UN fuel pellets with simulated fission products. MSc student Udyanth Vaidya is doing sensititivy analyses of nuclear fuels.

Malin Selleby
Malin Selleby
Elina Charatsidou
Elina Charatsidou
Denise Adorno Lopes
Denise Adorno Lopes
Udyanth Vaidya
Udyanth Vaidya
Sobhan Patnaik
Sobhan Patnaik
Faris Sweidan
Faris Sweidan

WP5: Experimental testing of LFR components

In this work package, experimental test rigs will be designed, built and used for testing and qualification of components for the research reactor designed in WP1. An erosion rig will be used for qualification of pump impellers as well as fuel cladding and steam generator tubes in prototypic lead flow regimes at temperatures up to 750 degrees C. Separate effect tests will be carried out in a smaller scale facility. Mockups using transparent liquids will be used for validation of models predicting turbulent flow characteristics in facilities using liquid lead.

The work package is lead by Associate Professor Pavel Kudinov (KTH) and Dr Dmitry Grishchenko (KTH).

Pavel Kudinov
Pavel Kudinov
Dmitry Grishchenko
Dmitry Grishchenko
Page responsible:Elina Charatsidou
Belongs to: Nuclear Engineering
Last changed: Apr 04, 2022