A 3D electronic model for unit 2 Cernavoda plant lay-out design

Based on the designed and construction experience of Cernavoda Unit 1, in order to provide an integrated approach in performing system, structural and lay-out engineering/construction activities, it is going to be implemented the CAD 3D electronic model of the Turbine Building and associated auxiliary systems. It is suggested a strongly recommended to perform the same approach also for the Reactor/Service Buildings lay-out configuration. This activity is actually developed on the CAD Computer Vision based on a dedicated intelligent date base properly developed for Cernavoda Unit 2 CANDU Nuclear power plant. The main purpose of this integrated approach is hereafter summarized: i. to implement the as built Unit 2 lay-out configuration of the civil structure previously erected and to modify properly the nominal design reference documentation; ii. to optimize properly the plant lay-out anticipating interference check between piping/equipment/cables trays; iii. to produce automatically isometric drawings for the plant construction area by area; iv. to implement automatically the as built lay-out drawings for piping/cables trays saving all the man hours effort required to develop the Unit 1 as built out; v. to provide an automatic input for piping structural qualification just connecting lay-out computer codes (Computer Vision) and Piping Stress Analysis Computer Codes; vi. to provide a complete and detailed design for the plant construction that might be split in portions whose realisation would be transferred to Romanian Contractors on the bases of 'turn-key' contracts. Additionally this effort, even if it might be judged expensive in terms of required man hours effort, should become an important investment, from economical point of view, for the future design and construction activities of Units 3/4/5 in Cernavoda site. (Author)