Reaktorteknik

This document provides guidance for performing and validating the sequence of steady-state calculations leading to prediction in all types of operating commercial nuclear reactors, of the following: — reaction-rate spatial distributions; — reactivity; — change of nuclide compositions with time. The document provides the following: a) guidance for the selection of computational methods; b) criteria for verification and validation of calculation methods used by reactor core analysts; c) criteria for evaluation of accuracy and range of applicability of data and methods; d) requirements for documentation of the preceding.

This document specifies the general principles and requirements for the design and performance evaluation of emergency core cooling system (ECCS) strainer of the pressurized water reactor (PWR) nuclear power plant, including the debris source walkdown, upstream analysis, the design of the sump strainer equipment, and the debris head loss test and analysis, Chemical effect test and analysis, downstream effects (in- vessel) test and analysis, and downstream effects (ex-vessel) analysis. This document is applicable to design and performance evaluation of ECCS strainer of PWR nuclear power plant. Other reactor types can be implemented by reference.