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首页> 外文期刊>Building and Environment >Volume-based size distribution of accumulation and coarse particles (PM0.1-10) from cooking fume during oil heating
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Volume-based size distribution of accumulation and coarse particles (PM0.1-10) from cooking fume during oil heating

机译：油加热期间来自烹饪油烟的堆积和粗颗粒（PM0.1-10）的基于体积的尺寸分布

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摘要

Paniculate matter generated during the cooking process has been identified as one of the major problems of indoor air quality and indoor environmental health. Reliable assessment of exposure to cooking-generated particles requires accurate information of emission characteristics especially the size distribution. This study characterizes the volume/mass-based size distribution of the fume particles at the oil-heating stage for the typical Chinese-style cooking in a laboratory kitchen. A laser-diffraction size analyzer is applied to measure the volume frequency of fume particles ranged from 0.1 to 10 μm, which contribute to most mass proportion in PM2.5 and PM10. Measurements show that particle emissions have little dependence on the types of vegetable oil used but have a close relationship with the heating temperature. It is found that volume frequency of fume particles in the range of 1.0-4.0 μm accounts for nearly 100% of PM0.1-10 with the mode diameter 2.7 μm, median diameter 2.6 μm, Sauter mean diameter 3.0 μm, DeBroukere mean diameter 3.2 μm, and distribution span 0.48. Such information on emission characteristics obtained in this study can be possibly used to improve the assessment of indoor air quality due to PM0.1 -10 in the kitchen and residential flat.
机译：在烹饪过程中产生的颗粒状物质已被认为是室内空气质量和室内环境健康的主要问题之一。对暴露于烹饪产生的颗粒的可靠评估需要排放特性（尤其是粒度分布）的准确信息。这项研究的特点是在实验室厨房中典型的中式烹饪油加热阶段，油烟颗粒的体积/质量基于尺寸的分布。应用激光衍射粒度分析仪测量烟气颗粒的体积频率，其范围在0.1至10μm之间，这在PM2.5和PM10中占最大比例。测量表明，颗粒物排放与所用植物油的类型几乎没有关系，但与加热温度有密切关系。发现烟气颗粒的体积频率在1.0-4.0μm的范围内占PM0.1-10的近100％，其中众数直径为2.7μm，中值直径为2.6μm，Sauter平均直径为3.0μm，DeBroukere平均直径为3.2 μm，分布范围为0.48。在这项研究中获得的有关排放特性的信息可以用于改善厨房和住宅公寓中由于PM0.1 -10引起的室内空气质量评估。

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  • 来源
    《Building and Environment》 |2013年第1期|575-580|共6页
  • 作者

    Jun Gao; Changsheng Cao; Xu Zhang; Zhiwen Luo;

  • 作者单位

    Institute of HVAC & Gas Engineering, School of Mechanical Engineering, Tongji University, Shanghai 20092, China;

    Institute of HVAC & Gas Engineering, School of Mechanical Engineering, Tongji University, Shanghai 20092, China;

    Institute of HVAC & Gas Engineering, School of Mechanical Engineering, Tongji University, Shanghai 20092, China;

    School of Construction Management and Engineering, University of Reading, Reading, UK;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    particulate matter; cooking fume; laser diffraction; volume frequency; size distribution;

    机译：颗粒物烹饪油烟;激光衍射音量频率尺寸分布;

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