PNP Prototype Plant Nuclear Process Heat: PNP material program

Automatic translation: Introduction and problem: When using high-temperature reactors for the purpose of Coal gasification with nuclear heat will put some components and assemblies under application conditions exposed for which the corresponding materials for use in nuclear technology are not sufficiently qualified. These conditions of use essentially result from the high process temperatures required for coal gasification, the nominal cooling gas temperature at the reactor outlet of approx. 950°C - compared to 750°C at the THTR two-circuit system - required. Taking into account the specific conditions of use in a nuclear process heating system was therefore to Extension of the qualification area for this eligible materials or qualifications of advanced materials within an R&D program an extensive material investigation and development program started. This F + D program In addition to the planning work for the prototype plant, it is part of the framework program for the project ''Prototype Plant Nuclear Process Heat'' (PNP).