FEASIBILITY STUDY OF ENGINEERING AND ORGANIZATIONAL SOLUTIONS FOR NUCLEAR FACILITY DECOMMISSIONING WITH NRS PROVISIONS BEING ACCOUNTED FOR

The report presents a flowchart and an algorithm allowing the selection of optimal process operations for the decommissioning of nuclear facilities. It also allows to evaluate the sustainability of the selected option considering

the uncertainties associated with the initial data for the comprehensive engineering and radiation survey, which also generates uncertainties in the indicators available under the selected options. The choice of the optimal option is based on a complex indicator integrating particular indicators in the form of a linear superposition for each considered decommissioning option. The optimal option is selected by repeated implementation of particular indicators for each considered option using the Monte Carlo method. Then the options are ranked according to the complex indicator in a descending order with the total number of positions calculated for each option. The best option is the one with the minimum total number of positions.

 

Keywords: radioactive waste, nuclear facilities (NF), decommissioning (DE), process operations, optimal option, particular indicators, complex indicator, the Monte Carlo method, sustainability of the selected option.