The 69th JSAP Spring Meeting 2022

Presentation information

Oral presentation

1 Interdisciplinary Physics and Related Areas of Science and Technology » 1.3 Novel technologies and interdisciplinary engineering

[24p-D316-1~11] 1.3 Novel technologies and interdisciplinary engineering

Thu. Mar 24, 2022 1:00 PM - 4:45 PM D316 (D316)

Akihiro Matsutani(Tokyo Tech)

4:00 PM - 4:15 PM

[24p-D316-9] Application of closed airflow system in the treatment of SARS-COV-2 and promoting health care

〇(D)ZILING ZHOU1, XIAOHAN WANG1, XINGBAI HONG1, NAOTO KATO1, YUBO WANG1, CHINGYU CHIU2, HSIEH TSUNGHAO2, SHENGFU LIANG2, MASAKIRO YASUTAKE3, AKIRA ISHIBASHI1 (1.RIES, Hokkaido University, 2.NCKU, 3.NMS)

Keywords:Cleanliness, CUSP, Health care

Waves of epidemics have occurred since the SARS-CoV-2 pandemic, resulting in a huge number of infections, while vaccination rates remain low in many countries. There is a rising requirement for a high-cleanliness environment in more and more situations of home recuperating. At the same time, people's desire to live in a healthy and safe environment is growing. CUSP (Clean Unit System Platform) is our first and most efficient clean system. A tent-type CUSP (T-CUSP) has the benefit of being a smaller version of CUSP. Without turning on the Fan Filter Unit (FFU), the Gas Exchange Unit (GEU) in CUSP can provide continuous ventilation throughout the day. FFU's interior air environment will only grow cleaner under continual circulation because it does not immediately interchange with the outside. Under natural diffusion, the cleanliness rose ten thousand times in around seven minutes in T-CUSP, and the carbon dioxide concentration declined twice in 20 minutes and reached its lowest level in 25 minutes. T-CUSP is a system that can maintain a high cleanliness environment while providing normal air exchange with high efficiency, based on its gas exchange capacity and cleaning capabilities. Besides, CUSP can help people maintain their health in everyday life. People will no longer be influenced by particles in the outside air in an enclosed area, lowering the pressure on the heart, lungs, and blood vessels while also lowering the risk of respiratory illness. Since CUSP is a closed air system, and the diameter of gas molecules is much smaller than that of viruses and aerosols, the diffusion coefficient of pathogens or can be negligibly small, to effectively block air, aerosol, and other transmission routes.