Application of the CFAST zone model to the Fire PSA

Lee, Yoon-Hwan; Kim, Jong-Hoon; Yang, Joon-Eon

doi:10.1016/j.nucengdes.2010.04.035

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…The CFAST and the HDR experimental results were considered in good agreement by the author. Lee et al 22 evaluated the temperature of the upper smoke layer of pump rooms in a nuclear power plant using the CFAST zone fire model. An analysis of the integrity of the cables located in the target room was conducted based on the results of model simulations.…”

Section: Introductionmentioning

confidence: 99%

A modified zone model on vertical cable tray fire in a confined compartment in the nuclear power plant

Huang

Ren

et al. 2018

Journal of Fire Sciences

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Room fire with vertical cable tray involves upward flame spread along the cable. Assessing the vertical cable tray fire hazard in confined spaces has been challenging because of the strong coupling between flame spread and heat transfer. Long computing time is required in using sophisticated field model with computational fluid dynamics. Therefore, developing an appropriate zone model in a cable room fire with experimental validation is required for engineering applications. In this study, a vertical cable tray fire in a confined compartment was simulated using a modified zone model along three new areas on having temporal variations of the fire position, upwardspreading cable flame considered as a burning source moving at a constant speed, and validated through full-scale experiments on vertical cable tray fire with two typical cable-line spacing. The modified zone model can predict accurately the upper-layer temperature in the compartment. The accuracy is at least 25% higher than the model with fixed fire position. The measured temperature at different heights started to decrease at different times, which was due to the vertical spreading of the cable flame. For interface height, the relative error and normalized Euclidean distance in the time-varying fire position model can be improved by 50%.

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Section: Introductionmentioning

confidence: 99%

A modified zone model on vertical cable tray fire in a confined compartment in the nuclear power plant

Huang

Ren

et al. 2018

Journal of Fire Sciences

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“…Actually, since the last century, the researches on region models have been carried out in many countries (Lee et al 2010). In the 1950s, Kawagoe et al (1964) proposed a region model describing the single-floor and the single-room fire hazard, determined the interior heat balance equation and finally obtained the air temperature-time curve for the fire hazard through using the numerical method.…”

Section: Introductionmentioning

confidence: 99%

Simulation and effects analysis of region models for interior fire hazard

Luo

Cao

2015

Revista de la Construcción

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The region model analysis is an important method for analyzing the interior fire hazard. Based on the mass conservation equation and energy conservation equation of the pre-flashover interior fire hazard development, the formulae required by computer programming are derived. VB is utilized as a tool for developing computation program with the aid of object programming idea to apply the mathematical modelling theories of the release rate of fire heat, plume and heat transfer. The relevant programming procedures and computation flow chart are presented. The program is verified through experimental data from Tianjin Fire Research Institute. As the computation of plumes is oversimplified, the thickness change of the smoke layer and the results obtained in the experiment vary considerably. The main advantage of the proposed computation model is that it is ease to be utilized for a variety of occasions.

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Experimental and Numerical Simulation Study on Multilayer Cable Trays Fire Under Mechanically Ventilated Conditions

Huang

et al. 2017

Proceedings of the 20th Pacific Basin Nuclear Conference

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Application of the CFAST zone model to the Fire PSA

Cited by 9 publications

References 2 publications

A modified zone model on vertical cable tray fire in a confined compartment in the nuclear power plant

A modified zone model on vertical cable tray fire in a confined compartment in the nuclear power plant

Simulation and effects analysis of region models for interior fire hazard

Experimental and Numerical Simulation Study on Multilayer Cable Trays Fire Under Mechanically Ventilated Conditions

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