No abstract

Abstract. This research presents the results of mathematical modeling of acid rain formation and its fallout in the areas adjacent to the site of the energy complex. Four thermal periods that are typical for regions of sharply continental climate has been considered. The influence of convective parameters on the formation mechanism of atmospheric precipitation has been estimated. The contribution of solar energy flux to the research process has been analyzed.

No abstract

No abstract

Abstract. In this research was shown an analytical assessment of the impact of the central reflector as an example of spherical reactor in one-group approximation. From the external reflector introduced an effective border that simplifies the mathematical problem of critical task. The validation of the research is done just for one of the IRT-T reactor conditions. Mathematical model and study techniqueIn the academic literature assessments of the impact of the central reflector is not given [1][2][3]. In some works a crucial problem was solved for planar geometry of the one-group, one-group modified [4] and in the diffusion-age approximation [6][7][8].It should be noted [1][2], that the inner central reflectors are used in the projects of research and power reactors to increase the thermal neutron flux and for the energy alignment on the core of a nuclear reactor. These results can be widely applied in practice, e.g. in solving the acute problem of central reflector masonry beryllium poisoning, (on the example of the IRT-T research reactor). The purpose of this research is to solve the critical problem as an example of a homogeneous spherical reactor with internal and external reflectors in the single-group approximation. To simplify the problem, is used the method of effective boundary conditions, following which from the outside of the reflector introduce efficient frontier R. Graphical interpretation is shown in Figure 1. Article available at