ADVANCED TECHNOLOGIES FOR CANDU REACTORS

The inherent features of a reactor based on multiple pressure tubes, rather than a single pressure vessel, provide CANDU with considerable flexibility for continuous design improvements. Of particular significance is the presence of a large volume of cool heavy-water moderator within the core. This can act as a heat sink for passive heat rejection during high-temperature accidents. We describe elements of our R&D program that are aimed to exploit this benefit. Similarly, safety, reliability and economy are the focus for our exploration of advanced technologies in the areas of advanced fuel and fuel channels, improved heavy-water production and computer-based systems that facilitate reactor design, construction and operation.