Structure of the CANDU Fuel Bundle

Abstract

GE Canada manufactures components for CANDU fuel bundles at its three plants in Ontario, i.e. UO₂ fuel pellets in Toronto , Zircaloy-4 tubing in Arnprior, and fuel bundle manufacturing in Peterborough. This report details the Zircaloy-4 structural components that make up the CANDU fuel bundle. These components are tubes, bearing pads, spacers , end plugs, and end supports. Component manufacture, and the various manufacturing processes associated with the components are discussed. Careful attention to material and process control is mandatory to ensure a reproducible high integrity product.