Indoor cooking is the main cause of particulate matter (PM) within residential houses along with smoking. Even with the range hood turned on, cooking-generated PM can spread quickly into the living room due to the heat generated by the cookstove. In order to improve the PM spread prevention performance of the range hood, a supply of make-up air is needed. Generally, make-up air is supplied through a linear diffuser between the kitchen and living room. In such cases, it is necessary to determine the appropriate location of the supply diffuser. This study evaluates the spread of PM according to different locations of the supply diffuser, which feeds in make-up air. For this purpose, indoor airflow and PM spread were analyzed through CFD (Computational Fluid Dynamics) simulation analysis. By changing the location of the supply diffuser from the contaminant source, PM concentration was analyzed in the kitchen and living room of an apartment house in Korea. Based on the results, the optimal installation location was determined. In this study, 1.5 m from the source was the most effective location of make-up air supply to prevent the spread of cooking-generated particles.

中文翻译：

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距烹饪炉灶距离的补给气供应量的CFD模拟分析

室内烹饪是吸烟以及住宅内颗粒物（PM）的主要原因。即使打开了抽油烟机，由于炊具产生的热量，烹饪产生的PM也会迅速散布到客厅。为了提高抽油烟机的防PM扩散性能，需要补充空气。通常，补充空气通过厨房和客厅之间的线性扩散器供应。在这种情况下，有必要确定供气扩散器的适当位置。这项研究根据供气扩散器的不同位置评估了PM的扩散。为此，通过CFD（计算流体动力学）模拟分析来分析室内气流和PM扩散。通过改变来自污染物源的供气扩散器的位置，对韩国某间公寓的厨房和客厅中的PM浓度进行了分析。根据结果​​确定最佳安装位置。在这项研究中，从源头起1.5 m是补充空气供应最有效的位置，以防止烹饪产生的颗粒扩散。