COSMARD - THE CODE SYSTEM FOR MANAGEMENT OF JPDR DECOMMISSIONING

The Code System for Management of JPDR Decommissioning (COSMARD) was d eveloped for use for effective planning and management of reactor deco mmissioning. Efforts were made to develop; (1) data-processing algorit hm using a tree structure which reflects decommissioning Work Breakdow n Structure (WBS), (2) a set of commands to describe WBS and specific working conditions as input data, and (3) models to evaluate various p ro)ect management data using simple mathematical formulas and unit fac tors. In preparing these models, dismantling work activities related t o the Japan Power Demonstration Reactor (JPDR) were analysed to find o ut fundamental work items and make suitable formulations for evaluatin g the manpower needs in both manual and remote dismantling work. Manpo wer needs for dismantling the JPDR components were then estimated as a sample calculation. An outline of COSMARD, its methodology and calcul ation models are discussed.