ETICS vertical temperature distribution and fire spread calculation

doi:10.16265/j.cnki.issn1003-3033.2021.10.011

Abstract

Abstract: Overflow of window fire is one of the main reasons for ETICS fires. In this study, on the basis of discussing and analyzing influence of opening dimension and differential neutral axis on Yokoi calculation, distribution characteristics of vertical wall temperature under different flame power and opening size were explored. Then, through a series of tests, vertical spreading velocity of flame for different flame power and thickness of polystyrene foam board (EPS) were measured, and surface temperature and internal EPS burn area for different flame intensity and EPS density were attained. Finally, an ETICS fire risk index calculation method based on INDEX was developed. The results show that the calculated results of vertical wall temperature are in good agreement with experimental results, so are the results of flame spread. INDEX method can effectively clarify ETICS fire risk.

Key words: external thermal insulation composite systems (ETICS), window fire overflow, wall temperature, vertical fire propagation, fire risk index

CLC Number:

X932

ZHOU Biao, WANG Kai, SUN Xukun, KE Wei, ZHANG Quan. ETICS vertical temperature distribution and fire spread calculation[J]. China Safety Science Journal, 2021, 31(10): 76-81.

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