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Characterization of particulate matter from heating and cooling several edible oils

机译：通过加热和冷却几种食用油来表征颗粒物质

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摘要

Cooking fumes produced by oils at high temperatures release large amounts of fine particulate matter (PM). Exposure to cooking fumes increases the risk of many diseases. A chamber study investigated particle emission and decay characteristics originating from six types of edible oil (olive oil, soybean oil, rapeseed oil, peanut oil, corn oil and sunflower seed oil). The experiment determined the particle number concentration and particle size distribution of PM with diameters of 0.3 pm and less, 0.3-0.5 mu m and 0.5-1.0 pm (PM0.3, PM0.3-0 5 and PM0.5-1.0, respectively) during the heating and cooling of the edible oils. The effects of heating power, indoor relative humidity and ventilation conditions on the corresponding particle emission and decay characteristics of olive oil and sunflower seed oil were discussed. Since the deposition and coagulation of the particles occur simultaneously in the experimental chamber, the deposition and coagulation rates of the cooling process were calculated. Two methods were compared to obtain an accurate coagulation rate.
机译：油类在高温下产生的烹饪烟雾会释放出大量的细颗粒物（PM）。接触烹饪油烟会增加许多疾病的风险。一项室内研究调查了源自六种类型食用油（橄榄油，大豆油，菜籽油，花生油，玉米油和葵花籽油）的颗粒发射和衰减特性。实验确定了直径为0.3 pm以下，直径为0.3-0.5μm和0.5-1.0 pm的PM的颗粒数浓度和粒径分布（分别为PM0.3，PM0.3-0 5和PM0.5-1.0 ）在食用油的加热和冷却过程中。讨论了加热功率，室内相对湿度和通风条件对橄榄油和葵花籽油相应的颗粒排放和衰变特性的影响。由于颗粒的沉积和凝结同时发生在实验室中，因此计算了冷却过程的沉积和凝结速率。比较了两种方法以获得准确的凝血速率。

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  • 来源
    《Building and Environment》 |2019年第4期|204-213|共10页
  • 作者

    Zhao Yujiao; Zhang Zhenhao; Ji Changfa; Liu Lang; Zhang Bo; Huan Chao;

  • 作者单位

    Xian Univ Sci & Technol, Energy Sch, Xian 710054, Shaanxi, Peoples R China|Minist Educ China, Key Lab Western Mines & Hazards Prevent, Xian 710054, Shaanxi, Peoples R China;

    Xian Univ Architecture & Technol, Sch Bldg Serv Sci & Engn, Xian 710055, Shaanxi, Peoples R China;

    Xian Univ Sci & Technol, Energy Sch, Xian 710054, Shaanxi, Peoples R China|Minist Educ China, Key Lab Western Mines & Hazards Prevent, Xian 710054, Shaanxi, Peoples R China;

    Xian Univ Sci & Technol, Energy Sch, Xian 710054, Shaanxi, Peoples R China|Minist Educ China, Key Lab Western Mines & Hazards Prevent, Xian 710054, Shaanxi, Peoples R China;

    Xian Univ Sci & Technol, Energy Sch, Xian 710054, Shaanxi, Peoples R China|Minist Educ China, Key Lab Western Mines & Hazards Prevent, Xian 710054, Shaanxi, Peoples R China;

    Xian Univ Sci & Technol, Energy Sch, Xian 710054, Shaanxi, Peoples R China|Minist Educ China, Key Lab Western Mines & Hazards Prevent, Xian 710054, Shaanxi, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Edible oil; Ultrafine particle; Coagulation rate; Deposition coefficient;

    机译：食用油;超细颗粒;混凝速率;沉积系数;

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