### Abstract

A nuclear reactor structure under abnormal operations of near meltdown will be exposed to a tremendous amount of heat flux in addition to the stress field applied under normal operation. Temperature encountered in such case is assumed to be beyond 1000°C. A mathematical model has been developed for the fire resistance calculation of a concrete-filled square steel column with respect to its temperature history. Effects due to nuclear radiation and mechanical vibrations will be explored in a later future model. The temperature rise in each element can be derived from its heat balance by applying the parabolic unsteady state, partial differential equation and numerical solution into the steel region. Calculation of the temperature of the elementary regions needs to satisfy the symmetry conditions and the relevant material properties. The developed mathematical model is capable to predict the temperature history in the column and on the surface with respect to time.

Original language | English |
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Pages | 485-493 |

Number of pages | 9 |

Publication status | Published - 30 Dec 2004 |

Event | 12th International Conference on Nuclear Engineering (ICONE12) - 2004 - Arlington, VA, United States Duration: 25 Apr 2004 → 29 Apr 2004 |

### Other

Other | 12th International Conference on Nuclear Engineering (ICONE12) - 2004 |
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Country | United States |

City | Arlington, VA |

Period | 25/04/04 → 29/04/04 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Nuclear Energy and Engineering

### Cite this

*Safety of nuclear reactors part A: Unsteady state temperature history mathematical model*. 485-493. Paper presented at 12th International Conference on Nuclear Engineering (ICONE12) - 2004, Arlington, VA, United States.

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**Safety of nuclear reactors part A : Unsteady state temperature history mathematical model.** / El-Shayeb, Mohamed; Yusoff, Mohd Zamri; Boosroh, Mohd Hariffin; Bondok, Ali; Ideris, Fazril; Abu Hassan, Saiful Hasmady.

Research output: Contribution to conference › Paper

TY - CONF

T1 - Safety of nuclear reactors part A

T2 - Unsteady state temperature history mathematical model

AU - El-Shayeb, Mohamed

AU - Yusoff, Mohd Zamri

AU - Boosroh, Mohd Hariffin

AU - Bondok, Ali

AU - Ideris, Fazril

AU - Abu Hassan, Saiful Hasmady

PY - 2004/12/30

Y1 - 2004/12/30

N2 - A nuclear reactor structure under abnormal operations of near meltdown will be exposed to a tremendous amount of heat flux in addition to the stress field applied under normal operation. Temperature encountered in such case is assumed to be beyond 1000°C. A mathematical model has been developed for the fire resistance calculation of a concrete-filled square steel column with respect to its temperature history. Effects due to nuclear radiation and mechanical vibrations will be explored in a later future model. The temperature rise in each element can be derived from its heat balance by applying the parabolic unsteady state, partial differential equation and numerical solution into the steel region. Calculation of the temperature of the elementary regions needs to satisfy the symmetry conditions and the relevant material properties. The developed mathematical model is capable to predict the temperature history in the column and on the surface with respect to time.

AB - A nuclear reactor structure under abnormal operations of near meltdown will be exposed to a tremendous amount of heat flux in addition to the stress field applied under normal operation. Temperature encountered in such case is assumed to be beyond 1000°C. A mathematical model has been developed for the fire resistance calculation of a concrete-filled square steel column with respect to its temperature history. Effects due to nuclear radiation and mechanical vibrations will be explored in a later future model. The temperature rise in each element can be derived from its heat balance by applying the parabolic unsteady state, partial differential equation and numerical solution into the steel region. Calculation of the temperature of the elementary regions needs to satisfy the symmetry conditions and the relevant material properties. The developed mathematical model is capable to predict the temperature history in the column and on the surface with respect to time.

UR - http://www.scopus.com/inward/record.url?scp=10644295375&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10644295375&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:10644295375

SP - 485

EP - 493

ER -