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首页> 外文期刊>Environmental Science & Technology >Chamber Studies on Nonvented Decorative Fireplaces Using Liquid or Gelled Ethanol Fuel
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Chamber Studies on Nonvented Decorative Fireplaces Using Liquid or Gelled Ethanol Fuel

机译：使用液体或凝胶乙醇燃料的无通风装饰壁炉的室内研究

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摘要

Decorative ethanol fireplaces are becoming more and more commonly used in many different countries. These fireplaces are constructed such that they have no fume extraction system, and so all of the gases from combustion, volatile organic compounds, and particulate emissions are released into the room. In order to determine the release behavior and the chemical composition of the emissions, a variety of combinations of ethanol fireplaces and fuels were examined in a 48 m~3 emission test chamber under typical living room environmental conditions. Four ethanol fireplaces with 8 different fuels (3 liquid samples, 5 gel-type samples) were tested. The ventilation conditions were set up corresponding to the manufacturers' recommendations and DIN 4734-1. The air concentrations in the chamber were evaluated based on guideline values for indoor air. Of the combustion gases examined, the quantity of carbon dioxide and nitrogen dioxide in particular were close to or even above the guideline values in many cases. A release of components of the fuel (e.g., the denaturing substances) was also detected in the chamber air. In two experiments, a benzene concentration of over 12 ppb and an increased formaldehyde concentration (＞0.1 ppm) were identified in the chamber air. The ethanol fireplaces were - irrespective of the type of fuel used - strong sources of fine and ultrafine particles. Overall, ethanol fireplaces have a considerable influence on the quality of the indoor air due to the lack of ventilation. This aspect should - in addition to fire protection - be properly considered when using such devices.
机译：装饰性乙醇壁炉在许多不同的国家变得越来越普遍。这些壁炉的结构使得它们没有排烟系统，因此燃烧产生的所有气体，挥发性有机化合物和颗粒物都被释放到房间中。为了确定排放行为和排放物的化学成分，在典型的客厅环境条件下，在48 m〜3排放测试室内检查了多种乙醇壁炉和燃料的组合。测试了带有8种不同燃料的四个乙醇壁炉（3个液体样品，5个凝胶型样品）。根据制造商的建议和DIN 4734-1设置通风条件。根据室内空气的指导值评估室内的空气浓度。在许多情况下，在所检查的燃烧气体中，尤其是二氧化碳和二氧化氮的数量接近或什至高于指导值。在室内空气中还检测到燃料成分（例如变性物质）的释放。在两个实验中，在室内空气中发现苯浓度超过12 ppb，甲醛浓度增加（＞ 0.1 ppm）。不管使用哪种燃料，乙醇壁炉都是细小和超细颗粒的重要来源。总体而言，由于缺乏通风，乙醇壁炉对室内空气质量有很大影响。在使用此类设备时，除防火外，还应适当考虑这一方面。

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  • 来源
    《Environmental Science & Technology》 |2014年第6期|3583-3590|共8页
  • 作者

    Tobias Schripp; Tunga Salthammer; Sebastian Wientzek; Michael Wensing;

  • 作者单位

    Fraunhofer WKI, Material Analysis and Indoor Chemistry, Bienroder Weg 54E, Braunschweig, Lower Saxony 38108, Germany;

    Fraunhofer WKI, Material Analysis and Indoor Chemistry, Bienroder Weg 54E, Braunschweig, Lower Saxony 38108, Germany;

    Fraunhofer WKI, Material Analysis and Indoor Chemistry, Bienroder Weg 54E, Braunschweig, Lower Saxony 38108, Germany;

    Fraunhofer WKI, Material Analysis and Indoor Chemistry, Bienroder Weg 54E, Braunschweig, Lower Saxony 38108, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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