스마트팜 적용 컨테이너 내 CO2 공급 및 환기팬 배치에 따른 유동 패턴 및 농도분포 CFD 해석 (Flow Pattern and Concentration Distribution CFD Analysis According to CO2 Supply and Ventilation Fan Arrangement in Smart Farm Container)

서지정보

· 발행기관 : 한국환경기술학회
· 수록지 정보 : 한국환경기술학회지 / 23권 / 6호 / 337 ~ 346페이지
· 저자명 : 전영남

초록

The problem of climate change due to global warming is negatively affecting the production and quality of crops. Container farms can be an alternative to solving the problem of growing crops due to the climate change. Therefore, a numerical study was preformed for the vertical container farm as the carbon dioxide utilization (CCU) technology. CFD numerical analysis was performed on the internal fluid flow pattern and concentration distribution related to the supply of carbon dioxide and air ventilation to the inside of the container. In addition, a parametric study was conducted for each variable on the change in the concentration of the CO2 injector and the velocity change of the air fan. The case of where the CO2 injector is located at the upper inlet, the air fan is located at the bottom, and the exhaust fan is located at the upper part of the outlet, was best situation for the CO2 distribution. In this case, the CO2 concentration in the container was 500-800 ppm which is good condition for tomatoes, melons, and strawberries. In addition, when the CO2 concentration of the CO2 injector is reduced, the concentration in the container is lowered, so it is not suitable for growing crops that require a lot of high CO2. When the velocity of the air fan was reduced, the CO2 concentration was too high due to ventilation and mixing problems which is expected a problem in crop cultivation. The results should be well known that in order to maintain a uniform CO2 concentration in a container, the container size and internal shelf arrangement, as well as the arrangement and conditions of the CO2 injector, air fan, and exhaust fan, are very important factors.

영어초록

The problem of climate change due to global warming is negatively affecting the production and quality of crops. Container farms can be an alternative to solving the problem of growing crops due to the climate change. Therefore, a numerical study was preformed for the vertical container farm as the carbon dioxide utilization (CCU) technology. CFD numerical analysis was performed on the internal fluid flow pattern and concentration distribution related to the supply of carbon dioxide and air ventilation to the inside of the container. In addition, a parametric study was conducted for each variable on the change in the concentration of the CO2 injector and the velocity change of the air fan. The case of where the CO2 injector is located at the upper inlet, the air fan is located at the bottom, and the exhaust fan is located at the upper part of the outlet, was best situation for the CO2 distribution. In this case, the CO2 concentration in the container was 500-800 ppm which is good condition for tomatoes, melons, and strawberries. In addition, when the CO2 concentration of the CO2 injector is reduced, the concentration in the container is lowered, so it is not suitable for growing crops that require a lot of high CO2. When the velocity of the air fan was reduced, the CO2 concentration was too high due to ventilation and mixing problems which is expected a problem in crop cultivation. The results should be well known that in order to maintain a uniform CO2 concentration in a container, the container size and internal shelf arrangement, as well as the arrangement and conditions of the CO2 injector, air fan, and exhaust fan, are very important factors.

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