Quantitative integration of fire risk with life cycle analysis of building: The case of thermal insulation
Quantitative integration of fire risk with life cycle analysis of building: The case of thermal insulation
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DOI：
10.1016/j.jobe.2023.107124
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发表时间：
2023-10
影响因子：
6.4
通讯作者：
R. di Filippo;L. Possidente;N. Tondini;O. Bursi
中科院分区：
文献类型：
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作者：
R. di Filippo;L. Possidente;N. Tondini;O. Bursi
鉴于环境可持续性的重要性日益增加，建筑物的能源消耗受到越来越多的关注。此类消耗的很大一部分是由于建筑物内部空间的热调节。隔热对于减少这些能源需求非常有效。因此，国家政策不断出台或修订，以提高最低绝缘要求。此外，目前保温材料很大一部分是塑料材料。人们发现这些材料在最近的几起重大火灾中增加了火灾后果的严重性。相反，无机纤维隔热材料，尤其是几乎不燃的材料，对火灾发展的影响较小，但隔热性能也较低。一方面考虑消防安全，另一方面考虑能源性能的优化问题已成为最近研究的主题。尽管如此，由于存在许多不确定性，这种优化通常仅进行定性讨论。相反，在这项工作中，完整的概率方法和损害影响转换被应用于火灾风险评估，并被发现是定量方法的可靠策略。因此，提出了应用于一般案例研究的基于火灾风险的隔热环境影响的定量整合。通过使用隐含碳值和火灾脆弱性函数来实现损害到冲击的转换。该应用程序还考虑了燃烧产生的直接温室气体排放。最终结果表明，火灾后果与塑料基和无机纤维隔热材料之间的环境平衡中优异的热性能效果相当。
Given the ever-growing importance of environmental sustainability, greater attention has been paid to the energy consumption of buildings. A significant share of such consumption is due to the thermal regulation of buildings’ interior spaces. Thermal insulation is highly effective in reducing these energy needs. Consequently, national policies have been introduced or revised to increase the minimum insulation requirements. Besides, a large share of thermal insulation materials is currently plastic-based. These materials were found to have increased the severity of fire consequences in a few recent major fires. Instead, inorganic fibrous insulation materials, especially those almost incombustible, have a lower impact on fire development but also lower thermal insulation performances. The optimization problem, with fire safety on one side and energy performances on the other, has been the subject of recent research. Nonetheless, due to the numerous uncertainties, such optimization is usually discussed only qualitatively. Conversely, in this work, full probabilistic methods and damage-to-impact conversion are applied to fire risk assessment and found to be a reliable strategy for a quantitative approach. Thus, a quantitative integration of fire risk-based environmental impact of thermal insulation, applied to a general case study, is presented. Damage-to-impact conversion is realized by using embodied carbon values and fire fragility functions. This application also accounts for direct greenhouse gas emissions from combustion. The final results show that fire consequences are comparable with the superior thermal performance effects in the environmental balance between plastic-based and inorganic fibrous insulation materials.