Fire Safety Journal最新文献_第6页

Critical ignition limits and thermal behaviors of asphalt combustion under varied radiation conditions: Experimental exploration and 2-D Smouldering Kinetics Interpretation 不同辐射条件下沥青燃烧的临界点火极限和热行为：实验探索和二维阴燃动力学解释

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-10-23 DOI: 10.1016/j.firesaf.2025.104564

Kai Zhu , Dan Zhao , Han Yuan , Qiang Wang , Linghan Zhou , Ke Wu , Zhirong Liang

Asphalt, a carbon-rich and chemically complex material, exhibits intricate combustion behavior under fire conditions. Despite its widespread use in over 90 % of pavements in the United States and China, its ignition dynamics under varying radiative conditions remain poorly understood. This research explored the thermal behaviors of combustible asphalt under various radiation intensities (0–50 kW/m²) and durations (0–60 min) experimentally, with smouldering reaction kinetics interpreted numerically. It is observed that under sufficient radiation duration (60 min), 5 kW/m² is the critical limit of radiation intensity; while under high radiation intensity (50 kW/m²), nearly 1 min is the critical limit of radiation duration. 2-D Smouldering Kinetics Interpretation revealed that critical radiation intensity determines the overcoming of activation energy, and critical radiation duration determines the potential of thermal-storage capacity for ignition to trigger smouldering combustion. Moreover, the reaction kinetics reflected the transition from pyrolysis-dominated to pyrolysis/oxidation-coupled reactions, significantly varying the asphalt/char/ash proportions. The findings establish critical thresholds for asphalt smoldering ignition, which are characterized by dual logarithm correlation between the radiation intensity and ignition time. This is complemented by fundamental analysis of species evolution dynamics and chemical energy distribution, providing insights valuable to fire safety science.

沥青是一种富含碳且化学性质复杂的材料，在火灾条件下表现出复杂的燃烧行为。尽管它在美国和中国90%以上的路面上广泛使用，但其在不同辐射条件下的点火动力学仍然知之甚少。本研究通过实验研究了不同辐射强度（0-50 kW/m2）和持续时间（0-60 min）下可燃沥青的热行为，并对阴燃反应动力学进行了数值解释。在足够的辐射持续时间（60min）下，5kw /m2是辐射强度的临界极限；而在高辐射强度（50 kW/m2）下，近1 min是辐射持续时间的临界极限。二维阴燃动力学解释表明，临界辐射强度决定了活化能的克服，临界辐射持续时间决定了点火蓄热能力触发阴燃的潜力。反应动力学反映了从热解为主反应到热解/氧化耦合反应的转变，沥青/炭/灰分比例发生了显著变化。研究结果建立了沥青阴燃的临界阈值，该阈值与辐射强度和着火时间呈双对数相关关系。这是对物种进化动力学和化学能分布的基本分析的补充，为消防安全科学提供了有价值的见解。

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引用次数: 0

Experimental study on the dynamic development of burning parameters of an unbounded fuel layer on a steel substrate 钢基体上无界燃料层燃烧参数动态发展的实验研究

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-11-25 DOI: 10.1016/j.firesaf.2025.104597

Chen Wang, Chunxiao Li, Weixin Tong, Jie Ji

If liquid fuel leaks onto a metal surface (such as the ship's deck), it may lead to the burning behavior of an unbounded fuel layer. This work carried out the burning experiment of an unbounded fuel layer on a steel substrate. The evolutions of flame height, burning diameter, fuel mass and fuel thickness etc., are revealed. The unbounded fuel layer on the steel substrate ranges from 0.18 mm to 0.76 mm. There is a positive correlation between the fuel thickness and the burning diameter. The difference of leakage rate or burning diameter does not have a significant impact on the burning rate during the quasi-steady burning stage, and the average burning rate is about 14.0 g/(m²s). The classical formula for pool fires cannot accurately calculate the burning rate of unbounded oil. In addition, if the classical formulas for the burning rate and flame height of pool fires are used to predict the flame height of a burning unbounded oil layer, the accuracy is rather poor; if the fuel burning rate directly obtained from the experiment and the classical formulas of flame height for pool fires are used, the accuracy of the predicted flame height is high.

如果液体燃料泄漏到金属表面（如船舶甲板），则可能导致无界燃料层的燃烧行为。本文进行了无界燃料层在钢基体上的燃烧实验。揭示了火焰高度、燃烧直径、燃料质量和燃料厚度等参数的变化规律。钢基体上的无界燃料层厚度为0.18 ~ 0.76 mm。燃料厚度与燃烧直径呈正相关。在准稳态燃烧阶段，泄漏率和燃烧直径的差异对燃烧速率没有显著影响，平均燃烧速率约为14.0 g/(m2s)。经典的池火计算公式不能准确地计算无界油的燃烧速率。此外，如果用经典的池火燃烧速率和火焰高度公式来预测燃烧无界油层的火焰高度，精度较差；如果使用直接从实验中得到的燃料燃烧速率和经典的火焰高度公式，预测火焰高度的精度很高。

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引用次数: 0

Surrogate based uncertainty quantification in pyrolysis modeling: A comparative analysis 热解建模中基于代理的不确定性量化：比较分析

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-10-28 DOI: 10.1016/j.firesaf.2025.104570

Hamza Jamil, Fabian Brännström

In this work we analyze and compare the uncertainty propagation in a comprehensive pyrolysis model that captures an experimental setup using different approaches: namely polynomial chaos expansion (PCE), proper orthogonal decomposition with interpolation (PODI), Gaussian process regression (GPR) and quasi-Monte Carlo simulations. We start with inverse modeling to obtain the nominal parameter values for a set of kinetic and thermal parameters that devise the essential equations of the model. This is followed by a global sensitivity analysis to choose the most critical parameters for which the stochastic uncertainty is studied in the output over time. For the uncertainty, we observe the convergence behavior for mean, standard deviation, skewness and kurtosis. The statistical moments convergence analysis shows PCE to exhibit comparatively poor convergence behavior for standard deviation, and divergence for skewness and kurtosis. On the other hand, the computational effort required for GPR does not scale well in terms of accuracy with increased number of samples. Whereas, PODI is observed to converge faster while being comparatively less computationally intensive than other surrogate approaches. In conclusion, PODI poses as the most prominent approach among the aforementioned for uncertainty quantification in highly resolved pyrolysis and flame spread models.

在这项工作中，我们分析和比较了一个综合热解模型中的不确定性传播，该模型采用了不同的方法，即多项式混沌展开（PCE）、适当的正交插值分解（PODI）、高斯过程回归（GPR）和准蒙特卡罗模拟。我们从逆建模开始，获得一组动力学和热参数的标称参数值，从而设计出模型的基本方程。其次是全局敏感性分析，以选择最关键的参数，研究随时间输出的随机不确定性。对于不确定性，我们观察到均值、标准差、偏度和峰度的收敛性。统计矩收敛分析表明，PCE对标准差表现出较差的收敛性，对偏度和峰度表现出发散性。另一方面，GPR所需的计算工作量随着样本数量的增加而不能很好地扩展精度。然而，与其他代理方法相比，PODI的收敛速度更快，而计算强度相对较低。综上所述，PODI是上述方法中对高分辨热解和火焰蔓延模型的不确定性量化最突出的方法。

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引用次数: 0

A novel fire hazard evaluation method for cable sheaths under various ageing conditions 不同老化条件下电缆护套火灾危险性评估新方法

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-11-05 DOI: 10.1016/j.firesaf.2025.104572

Hui Liu, Wenqiang Wang, Long Yan, Zhisheng Xu

Fire hazard is one of the most serious security threats to the service cable under different environmental conditions, and comprehensive evaluation is critical for fire safety. A novel evaluation method of fire hazard for cable sheaths after various ageing treatment was established based on entropy weight method (EWM), analytic hierarchy process (AHP), grey relational analysis (GRA), and technique for order preference by similarity to an ideal solution (TOPSIS) method. By analyzing factors that leaded to fire accidents, 15 evaluation indicators were determined from three aspects, including ignition, heat and smoke hazards. Combined with the characteristics of each evaluation method, the AHP-EWM method was used to obtain combination weight values, and the comprehensive evaluations for the fire hazards of the sheaths under different ageing conditions were realized by the TOPSIS-GRA method. The results show that the heat hazard of low-smoke halogen-free sheath is higher, while the smoke hazard of PVC sheath is larger. Simultaneously, the negative impact of hygrothermal condition is the most significant, succeeded by the salt spray condition, while the weaken effect of thermal condition is the smallest. In contrast to the traditional evaluation method of fire hazards, the evaluation results from the TOPSIS-GRA method are more accurate and reliable.

火灾是不同环境条件下服务电缆最严重的安全威胁之一，综合评价是保障服务电缆防火安全的关键。基于熵权法（EWM）、层次分析法（AHP）、灰色关联分析法（GRA）和理想解相似性排序偏好法（TOPSIS），建立了不同老化处理后电缆护套火灾危险性评价方法。通过分析导致火灾事故的因素，从着火、热和烟雾危害三个方面确定了15个评价指标。结合各评价方法的特点，采用AHP-EWM法获得组合权重值，采用TOPSIS-GRA法实现对不同老化条件下护套火灾危险性的综合评价。结果表明，低烟无卤护套的热危险性较高，而PVC护套的烟危险性较大。同时，湿热条件的负面影响最为显著，其次是盐雾条件，而热条件的弱化作用最小。与传统的火灾危险性评价方法相比，TOPSIS-GRA方法的评价结果更加准确可靠。

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引用次数: 0

A quantitative assessment model of the ignition probability of leaked flammable liquids on hot surfaces in aircraft under still air combining causal diagram and experimental data 结合因果图和实验数据的静态空气条件下飞机热表面泄漏可燃液体着火概率定量评估模型

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-11-21 DOI: 10.1016/j.firesaf.2025.104595

Xin Li, Long Ding, Jie Ji, Chen Wang, Weixin Tong

Aircraft operations are faced with fire accident caused by the ignition of leaked flammable liquids on hot surfaces. This type of accident could cause catastrophic consequences. To predict and identify the potential risk of flammable liquid ignition, a quantitative assessment model based on system dynamics is proposed in this work. Firstly, the ignition-related parameters in the flammable liquid leakage and hot surface ignition scenario are identified by leakage characteristics and ignition characteristics. Secondly, the causal relationship between flammable liquid leakage and hot surface ignition scenarios is constructed based on mathematical relationship for leakage volume, hot surface temperature and ignition probability. Among them, the key coefficients of the mathematical relationships are determined by hot surface experiments. Finally, a causal diagram is constructed using system dynamics to calculate the ignition probability and analyze the fire risk. A case study is used to illustrate the developed model and a discussion based on the case study is presented to identify the key influencing parameters of ignition probability. The proposed model can provide a new idea for the assessment of the ignition probability of flammable liquid leakage on hot surface, as well as a new perspective for the aviation safety.

飞机运行中经常会遇到由于易燃液体泄漏在热表面而引起的火灾事故。这种事故可能造成灾难性的后果。为了预测和识别可燃液体着火的潜在危险，提出了一种基于系统动力学的可燃液体着火定量评估模型。首先，通过泄漏特性和点火特性识别可燃液体泄漏和热表面着火场景下的点火相关参数；其次，基于泄漏量、热面温度和着火概率的数学关系，构建了可燃液体泄漏与热面着火情景的因果关系；其中，数学关系的关键系数由热表面实验确定。最后，利用系统动力学方法建立了着火概率因果图，并对火灾危险性进行了分析。通过实例对所建立的模型进行了说明，并在此基础上进行了讨论，确定了影响着火概率的关键参数。该模型可为热表面可燃液体泄漏着火概率的评估提供新的思路，为航空安全研究提供新的视角。

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引用次数: 0

Experimental investigation of cellular steel beams at ambient and elevated temperatures 室温和高温条件下蜂窝钢梁的试验研究

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-11-03 DOI: 10.1016/j.firesaf.2025.104574

Luana V. da Silva , Nickolas Giacomitti , Débora Ferreira , Nuno Lopes , Luís M.R. Mesquita

Cellular steel beams, commonly used in modern construction, exhibit complex failure mechanisms that have not been thoroughly explored, especially under fire conditions. This research investigates the structural behaviour of cellular beams under both ambient and elevated temperatures, with a focus on load-bearing capacity and failure modes. Experimental tests were conducted on a solid beam and six cellular beams with varying hole spacings and diameters at different temperatures. All beams were tested under three-point bending, subjecting the openings and the web posts to different combinations of bending moments and shear forces. Experimental maximum loads and failure modes are compared with the design method of EN1993-1-13 and EN1993-1-2. At ambient temperature, failure modes varied with beam design: specimens with smaller opening spacings failed by web-post buckling, while larger openings resulted in a Vierendeel mechanism. While the Eurocode predictions for load capacity were conservative under ambient conditions, the design model did not accurately predict the correct failure mode. Elevated temperatures significantly reduced the load capacity and, in some cases, changed the collapse mechanism. These results highlight that current design rules are unreliable in predicting the failure mode and may not ensure safety at higher temperatures, stressing the need for specific design rules for cellular beams in fire conditions.

在现代建筑中广泛使用的蜂窝钢梁，其复杂的破坏机制尚未得到充分的研究，特别是在火灾条件下。本研究调查了蜂窝梁在环境和高温下的结构行为，重点关注承重能力和破坏模式。在不同温度下，对一根实心梁和6根孔间距和直径不同的蜂窝梁进行了实验测试。所有梁都在三点弯曲下进行了测试，使开口和腹板柱受到不同的弯矩和剪力组合。将试验最大载荷和破坏模式与EN1993-1-13和EN1993-1-2的设计方法进行了比较。在环境温度下，梁的破坏模式因梁的设计而异：开口较小的试件因网柱屈曲而破坏，而开口较大的试件则因Vierendeel机制而破坏。虽然欧洲规范对环境条件下负荷能力的预测是保守的，但设计模型不能准确预测正确的失效模式。高温显著降低了承载能力，在某些情况下，还改变了坍塌机制。这些结果强调，目前的设计规则在预测失效模式方面是不可靠的，并且可能无法确保高温下的安全，强调需要针对火灾条件下的蜂窝梁制定特定的设计规则。

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引用次数: 0

An experimental and numerical study of fire and plume characteristics of pool fires fueled by diesel-canola oil mixture 柴油-菜籽油混合燃料池火及羽流特性的实验与数值研究

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-10-15 DOI: 10.1016/j.firesaf.2025.104560

Navya Muniraj , Weixuan Gong , Muthu Kumaran Selvaraj , William (Ruddy) Mell , Albert Simeoni

This study focuses on validating the fire and plume characteristics predicted by a physics-based fire behavior model, Fire Dynamics Simulator (FDS), widely used for simulating prescribed burns/wildfires. Systematic lab-scale experiments using medium-scale, sooty, buoyancy-controlled pool fires fueled by diesel-canola oil mixture were conducted with different pool fire configurations to mimic the spot and line ignition techniques used in prescribed burns. A suite of measurements, including the fuel mass loss rate, visible flame height, point measurements of temperature, velocity, and radiative and total heat fluxes were recorded. The measured mass loss rate was prescribed in the simulations to avoid the requirement of modeling the complex pyrolysis process. A mixing-controlled combustion model with a prescribed soot yield and a turbulence model suitable for simulating buoyant plumes were used. A sensitivity analysis was conducted to investigate the effects of different radiation models and model parameters on the predicted fire and plume characteristics. Overall, FDS provides good predictions for the flame height and plume temperature but tends to overpredict the plume velocity and underpredict the heat fluxes. The choice of radiation models significantly influences the prediction of plume characteristics and heat fluxes for different configurations. This study provides valuable experimental data on several critical parameters for validating and verifying the reliability of numerical models.

本研究的重点是验证基于物理的火灾行为模型——火灾动力学模拟器（FDS）预测的火灾和羽流特征，FDS广泛用于模拟规定的烧伤/野火。系统的实验室规模实验使用了中等规模、煤烟、浮力控制的以柴油-菜籽油混合物为燃料的池火，采用不同的池火配置来模拟规定烧伤中使用的点和线点火技术。记录了一系列测量结果，包括燃料质量损失率、可见火焰高度、温度、速度、辐射和总热通量的点测量。为了避免模拟复杂的热解过程，在模拟中规定了测量的失重速率。采用了规定产烟量的混合控制燃烧模型和适合模拟浮力羽流的湍流模型。通过敏感性分析，探讨了不同辐射模式和模式参数对预测的火灾和烟羽特征的影响。总体而言，FDS对火焰高度和羽流温度提供了较好的预测，但往往高估了羽流速度，低估了热通量。辐射模式的选择对不同配置下羽流特征和热通量的预测有显著影响。该研究为验证和验证数值模型的可靠性提供了几个关键参数的有价值的实验数据。

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引用次数: 0

LLM and VR empowering the building fire safety training: performance comparison between virtual reality and video-based methods LLM和VR增强建筑消防安全培训：虚拟现实和基于视频的方法的性能比较

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-11-25 DOI: 10.1016/j.firesaf.2025.104596

Can Huang, Jun Zhang, Weiguo Song

Proper fire safety training methods can improve the understanding and responses of people to building fires and thus reduce casualties to some extent. This study introduces and evaluates a system based on virtual reality (VR) integrated with large language models (LLMs). The innovation of the system lies in simulating conversations with an AI fire dispatcher to generate communications, which is expected to enhance trainees’ response capabilities especially in terms of reporting fire information, extinguishing initial fires, and choosing escape strategies. Through a group of controlled experiments, the performances of LLM + VR training, VR training and traditional video training on fire safety skills are compared. A meta-analysis was used to further investigate the impact of LLM-based interactive tasks on enhancing knowledge acquisition and retention. The results indicate that the innovative method demonstrates comparable effectiveness to traditional methods in knowledge acquisition, yet exhibits superior learning performance one-month post-training. The findings reveal the great potential of LLM in VR training systems, which provides new directions for future fire safety preparedness.

适当的消防安全培训方法可以提高人们对建筑火灾的认识和反应，从而在一定程度上减少人员伤亡。本文介绍并评估了一个基于虚拟现实（VR）与大型语言模型（llm）相结合的系统。该系统的创新之处在于模拟与人工智能消防调度员的对话，以产生通信，这有望提高学员的反应能力，特别是在报告火灾信息、扑灭初期火灾和选择逃生策略方面。通过一组对照实验，比较了LLM + VR培训、VR培训和传统视频培训的消防安全技能培训效果。采用元分析进一步探讨基于法学硕士的互动任务对提高知识获取和保留的影响。结果表明，创新方法在知识获取方面的效果与传统方法相当，但在培训后一个月表现出更优异的学习效果。研究结果揭示了LLM在VR培训系统中的巨大潜力，为未来的消防安全准备提供了新的方向。

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引用次数: 0

Reappraisal of Jin's visibility through fire smoke experiment: Insights into signage visibility and the impact of ambient light 通过火烟实验重新评价Jin的可见度：对标识可见度和环境光影响的洞察

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-11-05 DOI: 10.1016/j.firesaf.2025.104573

Wai Kit Cheung , Jakub Bielawski , Lukas Arnold , Xinyan Huang , Wojciech Węgrzyński

Jin's experiments in the 1970s contributed to fire evacuation research, but only examined relatively high ambient light levels. By replicating the Jin's experimental setup and varying ambient light level, we explore the relationship between smoke extinction coefficient, background illumination and signage emitting light intensity under low-light real-world emergency scenarios. Firstly, we confirm Jin's observation of a linear relationship between smoke extinction coefficient (

σ

) and visibility distance (

V

), although our measurements of

σ

are 7–11 % higher under equivalent signage luminance. Our findings on the

σ

versus normalized brightness

π L_{t} / E

at a 15.5 m distance align with Jin's results, while a 20 % discrepancy is observed at 10.5 m and 5.5 m distances. At high ambient light (180 lx), the

K = σ V

is comparable in Jin's experiment (from 5 to 8) and this work (from 4.7 to 9.5). However, at low ambient light (less than 22 lx), the signage remains visible in higher smoke extinction coefficients (with K from 6 to 11). The critical extinction coefficient decreases by nearly 40 % for every 5 m increase in visibility distance. This work deepens the understanding of smoke visibility under a dark fire environment, which may help guide fire signage design and inspire new fire evacuation research.

金在20世纪70年代的实验为火灾疏散研究做出了贡献，但只检查了相对较高的环境光水平。通过复制Jin的实验装置和不同的环境光水平，我们探索了在低光的现实世界紧急情况下，烟雾消光系数、背景照度和标牌发光强度之间的关系。首先，我们证实了Jin对烟雾消光系数（σ）和可见距离(V)之间的线性关系的观察，尽管在等效标识亮度下我们的σ测量值高出7 - 11%。我们在15.5 m距离处的σ与归一化亮度πLt/E的结果与Jin的结果一致，而在10.5 m和5.5 m距离处观察到20%的差异。在高环境光（180 lx）下，K=σV在Jin的实验（从5到8）和本工作（从4.7到9.5）中是相当的。然而，在低环境光（小于22 lx）下，标识在较高的烟雾消光系数（K从6到11）下仍然可见。能见度每增加5 m，临界消光系数降低近40%。本研究加深了对暗火环境下烟雾可见度的认识，有助于指导防火标识设计，启发新的火灾疏散研究。

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引用次数: 0

Ignition time and heat release rate in upward flame spread: From bench to intermediate scale 向上火焰蔓延时的点火时间和放热率：从工作台到中间尺度

IF 3.3 3区工程技术 Q2 ENGINEERING, CIVIL

Fire Safety Journal

Pub Date : 2026-01-01 Epub Date: 2025-11-10 DOI: 10.1016/j.firesaf.2025.104566

Waseem Hittini , David Lange , Juan P. Hidalgo , Felix Wiesner

This research assesses the effect of two common assumptions in simplified flame spread models: (i) that the pyrolysis front propagates in one dimension and (ii) that ignition time (

t_{ign}

) and heat release rate per unit area (HRRPUA) values measured at bench scale can be utilised in simplified flame spread models. To that aim, the study introduces a methodology to measure time to ignition, time-dependent burning area, heat release rate per unit area, and ignition temperature for concurrent upward flame spread at intermediate-scale, while examining the feasibility of using these metrics to predict flame spread scenarios. The methodology employs a narrow-spectrum illumination source and thermocouple arrays to precisely track the pyrolysis front progression during flame spread experiment. Measurements were obtained for Poly(methyl methacrylate), and they can serve as reference points for researchers aiming to develop or refine testing protocols or perform sensitivity analyses for assumptions relevant to time to ignition and heat release rate models. Measurements were compared with cone calorimeter data from standard and modified testing protocols in the literature. Post-ignition removal of external heating reduced HRRPUA values, aligning them more closely with intermediate-scale experiments, while spatial heat flux distribution changed the time to ignition towards the values that were measured in intermediate-scale. The impact of the solid ignition parameters on the flame spread rate was evaluated individually using a simplified flame spread model. The proposed methodology provides a means to refine extrapolation methods for solid ignition parameters.

本研究评估了简化火焰传播模型中两个常见假设的影响：(i)热解锋面在一维上传播；（ii）在台架尺度上测量的点火时间（tin）和单位面积放热率（HRRPUA）值可用于简化火焰传播模型。为此，该研究引入了一种方法来测量点火时间、随时间变化的燃烧面积、单位面积的放热率以及在中等规模下同步向上火焰蔓延的点火温度，同时检查使用这些指标预测火焰蔓延情景的可行性。该方法采用窄谱照明光源和热电偶阵列来精确跟踪火焰蔓延实验过程中的热解前沿进程。获得了聚（甲基丙烯酸甲酯）的测量值，它们可以作为研究人员的参考点，旨在开发或完善测试方案，或对点火时间和热释放率模型相关的假设进行敏感性分析。测量结果与文献中来自标准和修改的测试方案的锥量热计数据进行比较。点火后去除外部加热降低了HRRPUA值，使其与中尺度实验更接近，而空间热通量分布使点火时间向中尺度实验值靠拢。采用简化的火焰传播模型，分别评价了固体点火参数对火焰传播速率的影响。提出的方法为固体点火参数的外推方法提供了一种改进方法。

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引用次数: 0