OREANDA-NEWS. May 10, 2011. This news was reported yesterday by Deputy Director for Design and Science of St.-Petersburg “Atomenergoproject” (SPbAEP) Vladimir Bezlepkin during the Scientific and Technical Council meeting “Results of realization of investment projects on the codes development”.

Speaking about realization of investment projects concerning the codes development, Vladimir Bezlepkin noted, that the tasks for 2009–2010 had been successfully solved: “These are unique codes, but it not an end-product though it can solves many design problems now. We have a request for prolongation of this design work for 2 years more. After implementation of the program we should register this design tool, and only after that we can enter it in the books of our enterprise”.

The work was launched by the SPbAEP in 2009 within the framework of two investment projects concerning development of the codes of a realistic estimation of physical and chemical processes inside protective cover in case of the NPP accidents, including serious accidents beyond the design basis with fuel melting. The integrated aerosol hydrodynamic estimation code created under the first project is intended to solve a problem of dynamics modeling transfer of the fission products in containment for a quantitative estimation of their penetration outside the limits of protective cover.

The second project is aimed at development of three-dimensional containment code to support the calculations relating to the code specified above. This code allows to model the environment hydrodynamic parameters in containment in 3D format; and it is applied to prove effectiveness of the system of passive heat withdrawal from protective reactor cover, which the SPbAEP uses in the new generation NPP projects, in particular, the Leningrad NPP-2, where the company is working as a general designer and general contractor.

The said codes are developed together with the experts of the St.-Petersburg Polytechnical University and VNIPIET (All-Russian Scientific Research and Design Institute for Energy Technology).