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자료유형
학술저널
저자정보
저널정보
대한설비공학회 International Journal of Air-Conditioning and Refrigeration Journal Of Air-Conditioning and Refrigeration Vol.10 No.3
발행연도
2002.9
수록면
162 - 175 (14page)

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To investigate smoke movement with radiation in a room fires, a numerical and experimental analysis were performed. In this paper, results from a field model based on a self-developed SMEP (Smoke Movement Estimating Program) were compared with Steckler's experiment and the experiments on various sized pool fires in a room with door. The SMEP using PISO algorithm solves conservation equations for mass, momentum, energy and species, together with those for the modified k-ε turbulence model with buoyancy term. Also it solves the radiation equation using the S-N discrete ordinates method(DOM). The result of the calculated smoke temperature considering radiation effect has shown good agreement compared with the experimental data, although there are large discrepancy in the hot smoke layer between the temperature predicted by the SMEP with only convection effect and obtained by the experimental result. This large discrepancy is caused from the radiation effect of H₂O and CO₂ gas under smoke productions. Hence the radiation effect under smoke in fire is the point to be specially considered in order to produce more realistic result.

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Abstract

1. Introduction

2. The experiments

3. The mathematical models

4. Numerical method

5. Results and discussion

6. Conclusions

References

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