| 1. |
- De Bruyn, D., et al.
(författare)
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Main achievements of the FP7-LEADER collaborative project of the european commission regarding the design of a lead-cooled fast reactor
- 2013
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Ingår i: International Congress on Advances in Nuclear Power Plants, ICAPP 2013. - 9781632660381 ; , s. 281-290
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Konferensbidrag (refereegranskat)abstract
- Concerns over energy resource availability, climate change, air quality, and energy security suggest an important role for nuclear power in future energy supplies. While the current Generation II and III nuclear power plant designs provide an economically and publicly acceptable electricity supply in many markets, further advances in nuclear energy system design can broaden the opportunities for the use of nuclear energy. To explore these opportunities, worldwide governments, industries, and research centres started a wide-ranging discussion on the development of new systems known as "Generation IV." The European Commission has organized the Sustainable Nuclear Energy Technology Platform that through its Strategic Research Agenda promoted the development of fast reactors with closed fuel cycle. Among the promising reactor technologies, the Lead Fast Reactor (LFR) has been identified as a technology with great potential to meet needs for both remote sites and central power stations. The LFR system features a fast-neutron spectrum allowing the possibility for a closed fuel cycle for efficient conversion of fertile uranium and management of actinides. A full actinide recycle fuel cycle is therefore envisioned for the design of the reference LFR meant for deployment, while the capabilities of the system to act as a net-burner of actinides from spent fuel are object of further investigation The LEADER project deals with the development of such a technology through two main goals: the conceptual design of an industrial-size LFR (the so-called European LFRor ELFR) and the conceptual design of a scaled down facility, the demonstration reactor called ALFRED (Advanced Lead Fast Reactor European Demonstrator). The European Commission, withinits seventh framework programme, has approved the proposal submitted by 16 partners comprising research centres, industrial partners and universities. The project has started in April 2010 for a duration of three years.The focus of the first part of the LEADER project was the resolution of the key issues of the previous sixth framework programme ELSY project in order to reach a new consistent industrial-size reactor ELFR configuration.With reference to this reactor configuration the design of the ALFRED demonstrator (sized at 300 MWth, about 120 MWe) has been performed. The development of such demonstrator reactor presents obviously strong and interesting synergies with the development of MYRRHA, a material and fuel testing facility proposed by the SCK·CEN research centre in Belgium. In this paper we present a synthesis of the main results of the LEADER project.
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| 2. |
- Tran, Hoai Nam, 1981
(författare)
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Investigation of neutron noise behaviour in a fast reactor using a multi-group noise simulator
- 2013
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Ingår i: International Congress on Advances in Nuclear Power Plants: Nuclear Power - A Safe and Sustainable Choice for Green Future, ICAPP 2013, Held with the 28th KAIF/KNS Annual Conference; Jeju Island; South Korea; 14 April 2013 through 18 April 2013. - 9781632660381 ; , s. 631-639
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Konferensbidrag (refereegranskat)abstract
- Neutron noise behaviour in a sodium-cooled fast reactor (SFR) has been investigated using a multi-group noise simulator. The noise simulator was developed based on diffusion theory with multi-energy groups and several groups of delayed neutron precursors for supporting monitoring fast reactor cores. Noise sources are modeled via small stationary fluctuations of macroscopic cross sections, and the induced first order noise is solved in a frequency domain. Numerical calculations have been performed based on a 2D model of the ESFR core with 33 energy groups and 8 groups of delayed neutron precursors. Localized perturbations of several cross section types near the center of the core were assumed to investigate the behaviour of the amplitude and phase of the induced space-dependent noise in a wide range of frequency, e.g. 0.1 - 100 Hz.
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