A novel method for simulating smoldering propagation and its application to STAR (Self-sustaining Treatment for Active Remediation)

Stephanie L. MacPhee; Jason I. Gerhard; Guillermo Rein

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A novel method for simulating smoldering propagation and its application to STAR (Self-sustaining Treatment for Active Remediation)

机译：模拟阴燃传播的新方法及其在STAR（主动修复的自我维持处理）中的应用

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摘要

This work presents the development and proof of concept of a phenomenologically-based numerical model capable of simulating the expansion of a smoldering front in a heterogeneous reactive porous medium. This practical tool has potential for investigating a range of large-scale smoldering phenomena including subsurface peat and coal fires. The model is applied to the smoldering of non-aqueous phase liquids (NAPLs) embedded in soil. NAPLs are industrial chemicals found extensively polluting the subsurface and their in situ destruction via smoldering combustion is a promising site remediation approach referred to as STAR (Self-sustaining Treatment for Active Remediation). The In Situ Smoldering Model was developed through the novel coupling of a multiphase flow simulator with a combustion front expansion model, linked at the local (i.e., nodal) scale by a calibrated expression for the forward smoldering front velocity that is a function of airflow velocity and NAPL content. Numerical testing revealed that the model is computationally efficient and capable of handling two-dimensional smoldering propagation for a range of challenging physical scenarios.

机译：这项工作提出了基于现象学的数值模型的概念的发展和证明，该模型能够模拟异质反应性多孔介质中阴燃前沿的扩展。该实用工具具有研究广泛的阴燃现象的潜力，包括地下泥炭和煤火。该模型适用于对土壤中非水相液体（NAPL）的阴燃。 NAPL是被广泛污染地下物质的工业化学品，它们通过阴燃燃烧原位破坏是一种很有前途的现场修复方法，被称为STAR（主动修复的自我维持处理）。原位阴燃模型是通过多相流模拟器与燃烧前沿扩展模型的新颖耦合而开发的，该模型通过校准表达式表达了局部阴燃前沿速度，该表达式是气流速度的函数，并在局部（即节点）尺度上进行链接。和NAPL内容。数值测试表明，该模型具有较高的计算效率，并且能够处理一系列挑战性物理场景中的二维阴燃传播。

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来源
《Environmental Modelling & Software》 |2012年第2012期|p.84-98|共15页
作者
Stephanie L. MacPhee; Jason I. Gerhard; Guillermo Rein;
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作者单位

Department of Civil and Environmental Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada;

Department of Civil and Environmental Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada;

School of Engineering, The University of Edinburgh, Edinburgh EH9 3JL, United Kingdom;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
smoldering propagation; site remediation; multiphase flow; NAPLs; subsurface heterogeneity;

机译：阴燃传播;现场修复;多相流NAPL;地下异质性;

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专利

1. Self-Sustaining Smoldering Combustion for NAPL Remediation: Laboratory Evaluation of Process Sensitivity to Key Parameters [J] . Paolo Pironi, Christine Switzer, Jason I. Gerhard, Environmental Science & Technology . 2011,第7期

机译：用于NAPL修复的自持阴燃燃烧：对关键参数的工艺敏感性的实验室评估
2. Self-Sustaining Smoldering Combustion: A Novel Remediation Process for Non-Aqueous-Phase Liquids in Porous Media [J] . C. SWITZER, P. PIRONI, J.I. GERHARD, Environmental Science & Technology . 2009,第15期

机译：自持阴燃：多孔介质中非水相液体的新型修复工艺。
3. Self-Sustaining TREATMENT for ACTIVE REMEDIATION [J] . Gavin P Grant David Major Pollution Engineering . 2010,第8期

机译：自我修复的主动修复
4. Self-Sustaining Treatment for Active Remediation (STAR): In Situ Pilot Testing and Scale-up for the Smoldering Combustion Treatment of Coal Tar(ABSTRACT) [C] . Gavin P. Grant, Grant Scholes, David Major International Conference on Remediation of Chlorinated and Recalcitrant Compounds . 2012

机译：积极修复的自我维持治疗（明星）：原位试验试验和煤炭燃烧燃烧处理的扩展（摘要）
5. The study of electromagnetic wave propagation in photonic crystals via planewave based transfer (scattering) matrix method with active gain material applications [D] . Li, Ming 2007

机译：具有基于平面波的电磁波在光子晶体中的电磁波传播与有源增益材料应用的基于平面波的转移（散射）矩阵法
6. Application of Electro-Fenton Technology to Remediation of Polluted Effluents by Self-Sustaining Process [O] . Maria Ángeles Fernández de Dios, Olaia Iglesias, Marta Pazos, -1

机译：电芬顿技术在自持过程修复污水中的应用
7. Experimental studies of self-sustaining thermal aquifer remediation (STAR) for non-aqueous phase liquid (NAPL) sources [O] . Switzer Christine, Pironi Paolo, Rein Guillermo, 2008

机译：非水相液体源（NAPL）自持式热含水层修复（STAR）的实验研究
8. Study of Electromagnetic Wave Propagation in Photonic Crystals via Planewave Based Transfer (Scattering) Matrix Method with Active Gain Material Applications; Doctoral thesis [R] . Li, M., Ho, K. M., Tuttle, G., 2007

机译：基于planewave的有源增益材料转移（散射）矩阵法研究光子晶体中的电磁波传播;博士论文

A novel method for simulating smoldering propagation and its application to STAR (Self-sustaining Treatment for Active Remediation)

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