A mathematical model for the build up of corrosion products in water and on surfaces in BWR

In this report the division of a BWR-system into sections in which applicable parameters can be considered to be constant, is discussed. The BWR system is considered to be a coupled sequence of such sections. For each section linear differential equations which describe the transport of crud within the sections, have been written down. These equations form an equation system which describes the transport of crud within the whole BWR-system. Finally an account is given for five computer calculations in which the influence of crud-burster, temperature changes and carry-over-effects is analysed. The results indicate that the transport of crude is rather deeply dependent on the factors studied. (E.R.)