The EPR layout design

The European Pressurised Water Reactor (EPR), is a French-German development for the next generation of Pressurised Water Reactor. The new reactor is based on the experiences of operation and design of nuclear power plants in both countries. The EPR fulfils enhanced safety standards, higher availability and a longer service life. Layout and safety aspects All Nuclear Island (NI) buildings are designed against design earthquake as well as explosion pressure i wave. The protection against Airplane Crash (APC), can be realised through civil and layout possibilities. The Reactor Building, the Safeguard Buildings division 2 and 3 and the Fuel Building are protected by concrete structures. The other nuclear buildings are protected by geographical separation. Important safety requirements are the further reduction of the probability of severe accidents and the mitigation of such accident on the plant area. For that, a spreading area for molten corium, a channel from the reactor pit to the spreading area and the In Containment Refuelling Water Storage tank (IRWST) for flooding and initial cooling of the corium, were implemented in the design of the Reactor Building. All NI buildings with their main routings were designed in a 3D model. The utility design reviews were performed with this model. (author)