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Moisture Content Effects on Energy and Emissions Released During Combustion of Pyrophytic Vegetation

机译:水分对自燃性植物燃烧过程中释放的能量和排放的影响

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摘要

A series of small-scale laboratory fires were conducted to study the influence of species type and moisture content (MC) on the burning of vegetative fuels common in wildland fires. The experimental results seek to understand the effects these have on the release of gaseous emissions, namely carbon dioxide and carbon monoxide, as well as particulate matter (PM 2.5), and fire radiative energy (FRE). Current wildland fire emissions estimates rely on remote sensing techniques coupled with empirically-based linear relationships to relate FRE to biomass consumed, regardless of fuel type and moisture content. Emission factors (EF) are then applied to the estimated fuel consumption to estimate total emissions of specific combustion byproducts. In this study, we revisit these assumptions under the influence of moisture content for species containing volatile oils (pyrophytic species). Experimental results show that while the relationship between FRE and biomass consumed remains linear for dead, dry fuels, pyrophytic species examined in this study failed to follow existing relationships when their moisture content was increased.
机译:进行了一系列小型实验室火灾,以研究物种类型和水分含量(MC)对野火中常见的植物性燃料燃烧的影响。实验结果试图了解这些因素对释放气体排放物(即二氧化碳和一氧化碳以及颗粒物(PM 2.5)和火辐射能(FRE))的影响。当前的荒地火灾排放估算值依赖于遥感技术以及基于经验的线性关系,以将FRE与消耗的生物量相关联,而与燃料类型和水分含量无关。然后将排放因子(EF)应用于估算的燃料消耗量,以估算特定燃烧副产物的总排放量。在这项研究中,我们在水分含量的影响下重新研究了这些假设,其中含有挥发油的物种(自生植物)。实验结果表明,对于死的,干燥的燃料,FRE与消耗的生物量之间的关系保持线性关系,但当水分含量增加时,本研究中所研究的自燃物种未能遵循现有的关系。

著录项

  • 作者

    May, Nathaniel Andrew.;

  • 作者单位

    University of Maryland, College Park.;

  • 授予单位 University of Maryland, College Park.;
  • 学科 Environmental engineering.;Ecology.;Geographic information science and geodesy.
  • 学位 M.S.
  • 年度 2017
  • 页码 147 p.
  • 总页数 147
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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