Abstract
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.
Highlights
Residents spend 90% of their time indoors [1]
By changing the location of the supply diffuser from the contaminant source, particulate matter (PM) concentration was analyzed in the kitchen and living room of an apartment house in
The amount emission was calculated by dividing the value measured at the exhaust outlet of the range hood by time
Summary
Residents spend 90% of their time indoors [1]. As a result, their health is greatly affected by indoor air quality [2]. PM generated during cooking can be effectively removed by opening any windows while operating the range hood [11]. In order to provide make-up air to the range hood, it is effective to install the most. In order to provide make-up air to the range hood, it is effective to install theauxiliary most effective supply system prevents the spread pollutants [13]. The auxiliary supply system supplies outside air through a line diffuser to spread avoid the. The auxiliary supply system supplies outside air through a line diffuser to avoid the of spread of contaminants along the ceiling [14]. Under the condition that the range hood and line diffuser for spread of PM generated in the kitchen.
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