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Development of a Software to Evaluate the CPES(Cable Penetration Fire Stop) System in Nuclear Power Plane I  

윤종필 (서울대학교 응용화학부)
권성필 (서울대학교 화학공정신기술연구)
조재규 (서울대학교 응용화학)
윤인섭 (서울대학교 응용화학부)
Publication Information
Fire Science and Engineering / v.18, no.1, 2004 , pp. 24-30 More about this Journal
Abstract
In this work the dynamic heat transfer occurring in a cable penetration fire stop system built in the firewall of nuclear power plants is three-dimensionally investigated to develop a test-simulator that can be used to verify effectiveness of the sealants. Here was carried out an experiment to observe the heat transfer in the cable penetration fire stop system made of DOW CORNING products. The dynamic heat transfer occurring in the fire stop system is formulated in a parabolic partial differential equation subjected to a set of initial and boundary conditions. And it was modeled, simulated, and analyzed. The simulation results were illustrated in three-dimensional graphics and were compared with experimental data. Through the simulations, it was shown clearly that the temperature distribution was influenced very much by the number, position, and temperature of the cable streams. It also was found that the dynamic heat transfer through the cable streams was one of the most dominant factors, and the feature of heat conduction could be understood as an unsteady-state process. It is certain that these numerical results are useful for making a performance-based design for the cable penetration fire stop system.
Keywords
Dynamic heat transfer; Finite element method; Sequential over-relaxation; Partial differential equation; Cable penetration fire stop system;
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