Overview
FrançaisABSTRACT
In order to meet the safety, operation and cost reduction criteria assigned to third generation power reactors, manufacturers have developed new boiling water reactors. The KERENA™ possesses superior safety characteristics. KERENA™, an innovative product which also benefits from the German experience and the extensive work carried out by AREVA, is an average power reactor which can compete with the largest reactors. Due to the simplifying of its systems and equipment as well as to the integration of passive autonomous safety systems requiring no external energy source or information, this reactor is a fine example of the BWR to meet the most rigorous requirements of electronuclear plant operators.
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Werner BRETTSCHUH: AREVA NP GmbH
INTRODUCTION
The nuclear revival has prompted manufacturers to relaunch their research, qualification and development work on new models designed to meet the safety, operating and economic criteria assigned to the 3rd generation of power reactors.
The Boiling Water Reactor (BWR), the world's second most common nuclear power plant after the Pressurized Water Reactor (PWR), is the subject of a basic article
The design of KERENA™ marks an important evolution: while drawing on proven technology and operating feedback, it meets superior safety features and the most stringent requirements of nuclear power plant operators, particularly in Europe.
The new 3rd generation power plants coming onto the market are high-power units (1,500 to 1,700 MWe), such as AREVA's EPR (see
KERENA™, a medium-power plant (1,250 MWe) developed by AREVA, perfectly illustrates the ability of the BWR to meet the level of requirements expected of this 3rd generation.
KERENA™ is the product of German industry's early innovations and experience in the boiling water process, complemented by AREVA's extensive design and experimental validation work, resulting in:
simplification of systems and equipment, to achieve competitiveness with the largest reactors;
the integration of passive safety systems, fully autonomous and requiring no external source of energy or information, capable of putting and maintaining the reactor in a safe state in the highly unlikely event of a serious accident –. These systems operate in parallel with redundant active safety systems, and independently of them. It should be remembered that passive safety has been the subject of major studies for many years, particularly for small reactors intended for isolated areas or developing countries.
KERENA™, an "advanced"...
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KERENA: advanced medium-power boiling water reactor with passive safety
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