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Kyungmo Kang; Taeyeon Kim; Cheol Woong Shin; Kichul Kim; Jiwoong Kim; Yun Gyu Lee. Corrigendum to “Filtration efficiency and ventilation performance of window screen filters” [Build. Environ. 178 (2020) 106878]. Building and Environment 2021, 191, 107612 .
AMA StyleKyungmo Kang, Taeyeon Kim, Cheol Woong Shin, Kichul Kim, Jiwoong Kim, Yun Gyu Lee. Corrigendum to “Filtration efficiency and ventilation performance of window screen filters” [Build. Environ. 178 (2020) 106878]. Building and Environment. 2021; 191 ():107612.
Chicago/Turabian StyleKyungmo Kang; Taeyeon Kim; Cheol Woong Shin; Kichul Kim; Jiwoong Kim; Yun Gyu Lee. 2021. "Corrigendum to “Filtration efficiency and ventilation performance of window screen filters” [Build. Environ. 178 (2020) 106878]." Building and Environment 191, no. : 107612.
Due to the recent industrial development and COVID-19 pandemic, people are spending more time indoors. Therefore, indoor air quality is becoming more important for the health of occupants. Indoor fine particles are increased by outdoor air pollution and indoor occupant activities. In particular, smoking, cooking, cleaning, and ventilation are occupant activities that have the largest impact on indoor particle concentrations. In this study, indoor and outdoor particle concentrations were measured in ten apartment houses in South Korea for 24 h. Indoor particle concentrations were measured in the kitchen and living room to evaluate the impact of cooking, one of the most important sources of indoor particles. An occupant survey was also conducted to analyze the influence of occupant activities. It was found that the impact of outdoor particles on indoor particle concentrations in winter was not significant. The largest particle source was cooking. In particular, a large amount of particles was generated by broiling and frying. In addition, cooking-generated particles are rapidly dispersed to the living room, and this was more obvious for small particles. It is expected that this result will be statistically generalized if the particle concentration of more houses is analyzed in the future.
Hyungkeun Kim; Kyungmo Kang; Taeyeon Kim. Effect of Occupant Activity on Indoor Particle Concentrations in Korean Residential Buildings. Sustainability 2020, 12, 9201 .
AMA StyleHyungkeun Kim, Kyungmo Kang, Taeyeon Kim. Effect of Occupant Activity on Indoor Particle Concentrations in Korean Residential Buildings. Sustainability. 2020; 12 (21):9201.
Chicago/Turabian StyleHyungkeun Kim; Kyungmo Kang; Taeyeon Kim. 2020. "Effect of Occupant Activity on Indoor Particle Concentrations in Korean Residential Buildings." Sustainability 12, no. 21: 9201.
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.
Hyungkeun Kim; Kyungmo Kang; Taeyeon Kim. CFD Simulation Analysis on Make-up Air Supply by Distance from Cookstove for Cooking-Generated Particle. International Journal of Environmental Research and Public Health 2020, 17, 7799 .
AMA StyleHyungkeun Kim, Kyungmo Kang, Taeyeon Kim. CFD Simulation Analysis on Make-up Air Supply by Distance from Cookstove for Cooking-Generated Particle. International Journal of Environmental Research and Public Health. 2020; 17 (21):7799.
Chicago/Turabian StyleHyungkeun Kim; Kyungmo Kang; Taeyeon Kim. 2020. "CFD Simulation Analysis on Make-up Air Supply by Distance from Cookstove for Cooking-Generated Particle." International Journal of Environmental Research and Public Health 17, no. 21: 7799.
Efficient natural ventilation is an important approach to maintaining indoor air quality. However, owing to the increasing concentration of outdoor particulate matter (PM), natural ventilation without filtration results in the introduction of outdoor particles in buildings, thus increasing indoor exposure to PM. Indoor PM concentration is determined by the particle removal efficiency of window screen filters. In this study, using an experimental chamber and an actual building, the particle removal performance of window screen filters was evaluated for their potential application. To investigate the relationship between the outdoor and indoor concentrations of particles with diameter size ≤ 2.5 μm (PM2.5), and to evaluate the efficiency of the window screen filters in removing such particles, the window screen filters were installed in a full-scale test room. The results obtained showed that the average PM2.5 indoor/outdoor (I/O) ratio was within the range 0.24–0.72, and varied with the performance of the window screen filter. An analysis of the correlation between the ventilation rate and the air exchange rate (AER) showed that the I/O ratio increased as AER increased. Additionally, the particle size removal efficiency (PSE) of the window screen filters varied considerably with increasing particle diameter (0.3–10.0 μm), ranging from 0 to 82.4%, and the PSE results showed trends that were similar to those of PM2.5 removal efficiency based on the measurements performed in the test room. Therefore, window screen filters can be used to reduce the indoor concentration of outdoor particles.
Kyungmo Kang; Taeyeon Kim; Cheol Woong Shin; Kichul Kim; Jiwoong Kim; Yun Gyu Lee. Filtration efficiency and ventilation performance of window screen filters. Building and Environment 2020, 178, 106878 .
AMA StyleKyungmo Kang, Taeyeon Kim, Cheol Woong Shin, Kichul Kim, Jiwoong Kim, Yun Gyu Lee. Filtration efficiency and ventilation performance of window screen filters. Building and Environment. 2020; 178 ():106878.
Chicago/Turabian StyleKyungmo Kang; Taeyeon Kim; Cheol Woong Shin; Kichul Kim; Jiwoong Kim; Yun Gyu Lee. 2020. "Filtration efficiency and ventilation performance of window screen filters." Building and Environment 178, no. : 106878.
The purpose of this study was to measure the concentration of cooking-generated particles and to assess the health risk of the occupants. Numerous particulates are released from the kitchen when people are cooking, and diffused to other spaces in house, which would adverse the health of occupants. Sufficient ventilation is needed to decrease the PM2.5 concentration. To analyze the PM2.5 concentration, field measurements were performed on a cooking condition. A case study was performed based on the ventilation type including natural and mechanical ventilation. Three cases were designed: single-sided natural ventilation, cross-ventilation, and mechanical ventilation. The PM2.5 concentration was measured for 30 min, with a cooking time of 16 min. According to the analysis, the PM2.5 concentration increased 3.8 times more than the 24 h standard (50 µg/m3). The PM2.5 concentration in the living room was slightly greater than that in the kitchen. The particulate matter also rapidly diffused to other spaces. Moreover, the health risk increased by up to 30.8% more than in the base scenario. Therefore, additional ventilation strategies are needed to alleviate the diffusion of cooking particles.
Hyungkeun Kim; Kyungmo Kang; Taeyeon Kim. Measurement of Particulate Matter (PM2.5) and Health Risk Assessment of Cooking-Generated Particles in the Kitchen and Living Rooms of Apartment Houses. Sustainability 2018, 10, 843 .
AMA StyleHyungkeun Kim, Kyungmo Kang, Taeyeon Kim. Measurement of Particulate Matter (PM2.5) and Health Risk Assessment of Cooking-Generated Particles in the Kitchen and Living Rooms of Apartment Houses. Sustainability. 2018; 10 (3):843.
Chicago/Turabian StyleHyungkeun Kim; Kyungmo Kang; Taeyeon Kim. 2018. "Measurement of Particulate Matter (PM2.5) and Health Risk Assessment of Cooking-Generated Particles in the Kitchen and Living Rooms of Apartment Houses." Sustainability 10, no. 3: 843.