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Study on pollution control in residential kitchen based on the push-pull ventilation system

机译：基于推拉通风系统的住宅厨房污染控制研究

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摘要

Pollutants generated from cooking process are detrimental to occupant's health. For conventional residential kitchen in hot summer and cold winter region of China, range hood is installed to exhaust oil fume and other pollutants. In typical kitchen, air is supplied through the insect screen. However, this kind of air supply and exhaust system is not capable of providing air distribution for good indoor air quality in kitchen. In order to solve this problem, the combined scheme with air supply through slot air curtain and air exhaust through range hood is proposed, which is termed as the push-pull ventilation system. Both numerical simulation and field test were carried out to investigate the air velocity, temperature and pollutant distributions. Orthogonal study was performed during numerical simulation. Air curtain velocity (A), air curtain angle (B, C, D, E) and exhaust velocity (F) were chosen as six factors during the L-25 (5(6)) orthogonal test. The average CO2 concentration of the 25 cases in breathing region was compared. It is shown that by using the range hood alone, oil fume generated by cooking cannot be effectively exhausted out of the kitchen. With application of the push-pull ventilation system, the air temperature can be reduced during the summer scenario, which may improve occupant thermal comfort. Meanwhile, the pollutant concentration can be reduced with the improved air distribution. Moreover, the sequence for effect of influencing factors on the pollutant concentration distribution is A>B>C>E>D>F. This proposal provides a scientific support to reduce the indoor pollutant concentration in kitchen. (C) 2016 Elsevier Ltd. All rights reserved.
机译：烹饪过程中产生的污染物有害于乘员的健康。对于中国炎热夏季和冬季寒冷地区的常规住宅厨房，安装了抽油烟机以排出油烟和其他污染物。在典型的厨房中，空气通过防虫网供应。但是，这种供气和排气系统不能为厨房中良好的室内空气质量提供空气分配。为了解决这个问题，提出了通过狭缝气幕供气和通过抽油烟机排风的组合方案，称为推拉通风系统。通过数值模拟和现场试验研究了空气流速，温度和污染物分布。在数值模拟过程中进行了正交研究。在L-25（5（6））正交测试中，选择风幕速度（A），风幕角度（B，C，D，E）和排气速度（F）作为六个因素。比较了25例呼吸区域的平均CO2浓度。结果表明，仅使用抽油烟机，不能将烹饪产生的油烟有效地排到厨房之外。通过使用推拉通风系统，可以在夏季降低空气温度，从而可以提高乘员的热舒适度。同时，通过改善空气分布可以降低污染物浓度。此外，影响因素对污染物浓度分布的影响顺序为A> B> C> E> D> F。该建议为降低厨房室内污染物浓度提供了科学依据。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Building and Environment》 |2016年第10期|99-112|共14页
  • 作者

    Zhou Bin; Chen Feng; Dong Zhibo; Nielsen Peter V.;

  • 作者单位

    Nanjing Tech Univ, Coll Urban Construct, Dept HVAC, POB 76,200 North Zhongshan Rd, Nanjing 210009, Jiangsu, Peoples R China;

    Nanjing Tech Univ, Coll Urban Construct, Dept HVAC, POB 76,200 North Zhongshan Rd, Nanjing 210009, Jiangsu, Peoples R China;

    Nanjing Tech Univ, Coll Urban Construct, Dept HVAC, POB 76,200 North Zhongshan Rd, Nanjing 210009, Jiangsu, Peoples R China;

    Aalborg Univ, Dept Civil Engn, Aalborg, Denmark;

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

    Kitchen ventilation; Air distribution; Air curtain; Pollution control;

    机译：厨房通风;空气分配;气幕;污染控制;

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