Overview
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ABSTRACT
Nuclear energy is an answer to environmental issues such as the greenhouse effect. However following the Chernobyl accident, it has become necessary to reinforce the measures concerning reactors and take into account situations with a degraded core and even melted fuel. This is how the principal European electricians have elaborated the EURs, common specifications of their requirements. The future EPR should therefore meet the safety requirements of France and Germany and also the EURs and the particular specifications from the electricians of both countries.
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Read the articleAUTHORS
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Jean-Pierre PY: Engineer from the École supérieure d'électricité (ESE) - Former Director of New Products, AREVA
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Michel YVON: Engineer from the École nationale supérieure des arts et métiers - Former Safety Manager, Nuclear Power International (NPI)
INTRODUCTION
Environmental issues such as the greenhouse effect are becoming increasingly sensitive, even for the general public. Nuclear power is a response to these concerns. However, the Chernobyl accident contributed to a change in the perception of risk. Despite the remarkable results achieved by power plants built in Western countries, and in particular by French and German plants, it has become clear that future reactors need to be even more robust in their accident-avoidance provisions, and even to take a new step forward in their design by taking into account situations involving a degraded core, or even fuel meltdown. Even in this scenario, the environmental consequences would be very limited.
This general situation has also prompted utilities, for whom nuclear power remains an attractive solution, to reflect on the characteristics and performance of the reactors of the future. At EDF's initiative, the main European utilities have drawn up a common general specification of their requirements: the EUR ("European utility requirements").
The EPR (originally "European pressurized water reactor", now "evolutionary power reactor"), a reactor model initially developed by French and German industrialists and power companies, had to meet not only the safety requirements jointly specified by the safety authorities in France and Germany, but also the EUR and special specifications of the power companies in both countries.
Two reactors based on this EPR model are already under development. The first is currently under construction in Finland. The second, approved by EDF on May 4, 2006, received its decree of authorization (DAC) on April 10, 2007.
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Pressurized water reactors: the EPR project
Bibliography
Reference
- (1) - ICRP Publication 63 : Principles for intervention for protection of the public in a radiological emergency - . Annals of the ICRP, 22/4 (1993).
EPR documents
Regulations
Council Regulation (EEC) No. 737/90 of March 22, 1990, on the conditions governing imports of agricultural products originating in third countries following the accident at the Chernobyl nuclear power station.
Technical guidelines for the design and construction of the next generation of pressurized water reactors, October 2000.
Letter DGSNR SD2 n° 0729/2004 of September 28,...
Organizations
French Nuclear Safety Authority (ASN) http://www.asn.fr/
French Atomic Energy Commission (CEA) http://www.cea.fr/
International Commission on Radiological Protection (ICRP) http://www.icrp.org/
...Manufacturers, users
(non-exhaustive list)
AREVA NP http://www.areva-np.com/
EDF, Nuclear news http://nucleaire.edf.fr/
E.ON http://www.eon.com/
...
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