北方地区住宅厨房油烟颗粒污染物分布及暴露模拟分析  

Numerical simulation on distribution of cooking-generated fume particle pollutants and exposure in a northern residential kitchen

作　　者：李慧星[1] 刘昱[1] 冯国会[1] LI Huixing LIU Yu FENG Guohui(School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China)

机构地区：[1]沈阳建筑大学市政与环境工程学院,沈阳110168

出　　处：《环境工程学报》2017年第3期1639-1645,共7页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51378318);辽宁省教育厅基础研究项目(LZ2014030);辽宁省自然科学基金资助项目(201602640)

摘　　要：为充分掌握油烟中颗粒污染物对厨房影响及人员暴露问题,建立北方地区常见的住宅厨房模型,运用FLUENT软件模拟不同季节下厨房油烟污染物分布。选取工作区、呼吸带截面,分析污染物质量分数及温度分布,并结合人员呼吸模型和污染暴露模型,得出人员平均污染暴露量。结果表明:工作区截面冬季门窗关闭工况污染物质量分数最大其峰值是低数值工况峰值的650倍;呼吸带截面人员平均污染暴露量在0.1942×10^(-3)~17.8544×10^(-3)之间。研究成果可为深入研究厨房油烟细颗粒物特性及人员暴露分析与评价提供参考。Cooking-generated fume contains large amounts of fine particle pollutants with high concentration.In order to prove the influence of cooking-generated aerosol particles in kitchen to human exposure,a typical format of residential kitchen in northern China is selected in this paper.FLUENT software is applied to simulate interior space airflow when cooking in the residential kitchen under different cases.Reaching pollutant mass fraction and temperature distribution in working-section,breathing-section and cooking-section area.Meanwhile,occupant＇ s mean exposure to aerosol particles is obtained integrated with human inhale model and pollution exposure calculation model.Results show that a high level of pollutant mass fraction with enclosure closed in working-section area with peak value 650 times more than other cases can be seen.Occupant＇ s mean exposure value is between 0.194 2 ×10^-3 and 17.854 4 ×10^-3 in each case with high in winter case.The research output can provide valuable reference for the further study on fine particle concentration level and exposure assessmentin kitchen.

关 键 词：烹饪油烟 可吸入气溶胶颗粒 数值模拟 呼吸模型 污染暴露量 

分 类 号：X511[环境科学与工程—环境工程]