Status of Design Code Work in Germany Concerning Materials and Structural Aspects for the Heat Exchanger Components of Advanced HTR’s

Abstract

A brief status report on the work concerning design codes for HTR components with service temperatures above 800°C is given. The evaluation of experimental test work and preliminary time-dependent design data are reviewed and some design analyses for an IHX concerning fatigue, creep buckling, and creep ratcheting are described as a basis for critical discussion of some features of ASME Code Case N 47.