Search academic texts

Information × Registration Number 0213U000470, 0108U000678 , R & D reports Title Development of three-dimensional models temperature fields in plate-floor of Chernobil atomic poverstacion forth pover unit for fuel content mass reslarching popup.stage_title Head Vynnychuk Stepan, Registration Date 12-02-2013 Organization Institute of the problems simulation in power engineering popup.description2 MATHEMATICAL MODELING, ENERGY FACILITIES, FUEL CONTAINING MASS, CRITICAL MASS The object of the research is to heat and mass transfer processes in reactors of RBMK-1000 1st and 4th Chernobyl nuclear power accidents during 1982 and 1986. Purpose is to develop mathematical models of temperature fields in the premises of the 4th unit, to determine the amount of fuel containing masses for values ??of the temperature obtained by allowable. Developed three-dimensional mathematical model for the study of temperature fields in the reactor RBMK-1000 and "Shelter" and the software that implements them, as well as mathematical models of heat transfer in an accident on the 1st block of Chernobyl. The evaluation of the impact of the crisis of heat transfer of the 1st and 2nd kind for heat transfer processes in the first stage of the accident on the 4th block of Chernobyl. Found that when working with NPP RBMK-1000 has ma-li spot modes with a small number of effective cores (6-8), low power reactor (700 MW) in the positive void coefficient of reactivity and determined dampened additional conditions that could lead to accidents, such as: emergency shutdown stopwaied MCP followed by a sharp decrease in costs to zero, the emergence of the phenomenon of cavitation, oscillation unit with locking rod lowering rods into the core. In such a scenario similar to the implementation process would have occurred and if not would press a button emergency protection AZ-5.    Based on modeling of heat transfer by solving the inverse heat conduction problems assessed amount of fuel containing masses in the floor plate-pidreaktornoho room Product Description popup.authors Винничук Степан Дмитрович Коломієць Євген Анатолійович Сорокін Микола Олексійович Тарапон Олександр Григорович popup.nrat_date 2020-04-02 Close