YKAe - Nuclear power plant systems behaviour and operational aspects of safety. Evaluation of research programme 1990-1992.

摘要

The report is a mid term evaluation of the YKAe programme started in 1990. In the area safe margins of nuclear fuel and reactor core the work in support of improved performance of LWR fuel is primarily an economic matter and, therefore, should be funded directly by the utilities. As regards assessment of transient and accident situations the experiments in the PACTEL facility provide conditions for VVER reactors which are not available anywhere else. Every effort should be made to utilize this facility in further international programmes. The analysis methods developed for accident and the fire risk studies are excellent and well focused in the specific needs of the Finnish programmes. Further activities in transient and accident modelling should be coupled with the work of the APROS programme. Studies on the new technology in supervision and control of nuclear power plant processes are of special importance to Finland either for the 5th nuclear power station or for the upgrading existing systems. The work on computerized operator support systems looks to be achieving maturity and should be considered for more downstream funding. The human factors studies are of direct relevance to reactor operations. The human factors research appears sub-critical and deserves more support. Overall, the Evaluation Team felt that this small programme was well focused on Finland's needs, well integrated into the international programmes and provided good value for money. The programme direction and balance is good, and with only minor shift emphasis, should carry on its projected course. (Atomindex citation 24:047759)