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0212U005647,
0110U000939
,
Working out of models of a thermal condition and research of fire resistance of cable lines of the atomic power station
Krukovsky Pavel Grigorevich,
21-12-2012
Institute of State Management in the Sphere of Civil Defense
The object of study: the processes of heat transfer that occurs in the cable runs when heated under various conditions of fire and fire resistance of these processes predefined cable runs. Objective: Development, Verification, and practical application of computational models of thermal state, the analysis of fire resistance and burnout separate cable runs, as well as two cable runs at a burn up of one of them to determine the limits of their fire, obtaining engineering nomograms and select options fire-retardant coating for different fire conditions . Methods: mathematical modeling using numerical methods for integrating the input of (finite volume method) and methods for verification and identification of the model parameters using experimental and empirical data, and the full-scale experiment using the apparatus for measuring the temperature. The main results are introduced in the learning process of the Institute of Public Administration for Civil Protection in the form of physical, mathematical and computer models that describe the thermal state of the cable route in the box under standard temperature conditions that allow for heat each of the cables, its structure, as well as radiation -convection heat transfer from the metal box in the volume of fire furnace, physical, mathematical and computational models of burnout cable route due to a short circuit in a separate cable that provides a non-stationary temperature field and velocity both in the track and in the air space around it, the physical , mathematical and computer models of heat transfer two cable runs at a burn up of one of them (lower trace) to determine the fire resistance of the upper cable route, which does not burn, which are located in containment APS; engineering nomogram for determining the thickness of fire protective coatings of various materials depending on the distance between traces and cables fill the bottom line, which burns.5481
Єременко С.А.
Білошицький М.В.
Пруський А.В.
Сидоренко В.Л.
2020-04-02
Updated: 2025-12-18
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