Nine participants, representing eight different Swedish fire consultancy firms participated in a Round Robin study where two different cases were simulated with the Fire Dynamics Simulator. The first case included a large open warehouse where the activation of a sprinkler system was to be studied. In the second case time to critical conditions in a theatre was to be calculated. The participants were given clear instructions on the building layout and heat release rate for the two cases. Still, the results demonstrate a significant variation in time to sprinkler system activation (range of 110 seconds) and available safe escape time (range of 60 seconds), between the participants. It is important to emphasise that some degree of variation is unavoidable, as engineers can model things differently without the modelling solution necessarily being incorrect. Even though it is hard to isolate and specific cause of the variation, some of the variation seen in this study is related to modelling choices that are questionable and consequently problematic for the reliability of the fire safety design.

中文翻译：

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基于性能设计的火灾建模循环

代表八家不同瑞典消防咨询公司的九名参与者参加了一项循环研究，其中使用火灾动力学模拟器模拟了两个不同的案例。第一个案例包括一个大型开放式仓库，在那里要研究喷水灭火系统的激活。在第二种情况下，要计算剧院中临界条件的时间。对两个案例的建筑布局和热释放率向参与者进行了明确的说明。尽管如此，结果表明，参与者之间的自动喷水灭火系统激活时间（范围为 110 秒）和可用安全逃生时间（范围为 60 秒）存在显着差异。重要的是要强调某种程度的变化是不可避免的，因为工程师可以对事物进行不同的建模，而建模解决方案不一定是不正确的。尽管很难隔离变化的具体原因，但本研究中看到的一些变化与建模选择有关，这些选择是有问题的，因此对消防安全设计的可靠性有问题。