Analysis of NO2 Removal Efficiency of Air Purification System in Bus Stop Using CFD

Yup Yoo; Jonghun Lim; Nahyeon An; Hyukwon Kwon; Hyungtae Cho; Junghwan Kim

doi:10.1007/978-981-19-9822-5_214

Analysis of NO₂ Removal Efficiency of Air Purification System in Bus Stop Using CFD

Yup Yoo, Jonghun Lim, Nahyeon An, Hyukwon Kwon, Hyungtae Cho, Junghwan Kim

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Among air pollutants generated in cities, NO₂ occurs in vehicles and seriously impacts passengers’ health waiting at bus stops. Therefore, installing an air purification system inside a bus stop was proposed to improve public health. This study confirmed the effect of removing NO₂ using computational fluid dynamics when an air purification system was installed at a bus stop. The NO₂ concentration inside the bus stop was observed according to bus positions under three scenarios. The scenario with the highest NO₂ concentration at the bus stop was divided into three additional scenarios according to the installation location of the air purification system to confirm the NO₂ removal effect. The NO₂ concentration was the highest when the bus exhaust pipe was in the middle of the bus stop entrance, and when both an air purification system and air curtains were used, the NO₂ removal effect was approximately 89.4% higher than the worst-scenario.

Original language	English
Title of host publication	Proceedings of the 5th International Conference on Building Energy and Environment
Editors	Liangzhu Leon Wang, Hua Ge, Mohamed Ouf, Zhiqiang John Zhai, Dahai Qi, Chanjuan Sun, Dengjia Wang
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	2025-2033
Number of pages	9
ISBN (Print)	9789811998218
DOIs	https://doi.org/10.1007/978-981-19-9822-5_214
Publication status	Published - 2023
Event	5th International Conference on Building Energy and Environment, COBEE 2022 - Montreal, Canada Duration: 25 Jul 2022 → 29 Jul 2022

Publication series

Name	Environmental Science and Engineering
ISSN (Print)	1863-5520
ISSN (Electronic)	1863-5539

Conference

Conference	5th International Conference on Building Energy and Environment, COBEE 2022
Country/Territory	Canada
City	Montreal
Period	25/07/22 → 29/07/22

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

Keywords

Air purification system
Bus stop
CFD
NO

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/978-981-19-9822-5_214

Cite this

Yoo, Y., Lim, J., An, N., Kwon, H., Cho, H., & Kim, J. (2023). Analysis of NO₂ Removal Efficiency of Air Purification System in Bus Stop Using CFD. In L. L. Wang, H. Ge, M. Ouf, Z. J. Zhai, D. Qi, C. Sun, & D. Wang (Eds.), Proceedings of the 5th International Conference on Building Energy and Environment (pp. 2025-2033). (Environmental Science and Engineering). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-19-9822-5_214

Yoo, Yup ; Lim, Jonghun ; An, Nahyeon et al. / Analysis of NO₂ Removal Efficiency of Air Purification System in Bus Stop Using CFD. Proceedings of the 5th International Conference on Building Energy and Environment. editor / Liangzhu Leon Wang ; Hua Ge ; Mohamed Ouf ; Zhiqiang John Zhai ; Dahai Qi ; Chanjuan Sun ; Dengjia Wang. Springer Science and Business Media Deutschland GmbH, 2023. pp. 2025-2033 (Environmental Science and Engineering).

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abstract = "Among air pollutants generated in cities, NO2 occurs in vehicles and seriously impacts passengers{\textquoteright} health waiting at bus stops. Therefore, installing an air purification system inside a bus stop was proposed to improve public health. This study confirmed the effect of removing NO2 using computational fluid dynamics when an air purification system was installed at a bus stop. The NO2 concentration inside the bus stop was observed according to bus positions under three scenarios. The scenario with the highest NO2 concentration at the bus stop was divided into three additional scenarios according to the installation location of the air purification system to confirm the NO2 removal effect. The NO2 concentration was the highest when the bus exhaust pipe was in the middle of the bus stop entrance, and when both an air purification system and air curtains were used, the NO2 removal effect was approximately 89.4% higher than the worst-scenario.",

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Yoo, Y, Lim, J, An, N, Kwon, H, Cho, H & Kim, J 2023, Analysis of NO₂ Removal Efficiency of Air Purification System in Bus Stop Using CFD. in LL Wang, H Ge, M Ouf, ZJ Zhai, D Qi, C Sun & D Wang (eds), Proceedings of the 5th International Conference on Building Energy and Environment. Environmental Science and Engineering, Springer Science and Business Media Deutschland GmbH, pp. 2025-2033, 5th International Conference on Building Energy and Environment, COBEE 2022, Montreal, Canada, 25/07/22. https://doi.org/10.1007/978-981-19-9822-5_214

Analysis of NO₂ Removal Efficiency of Air Purification System in Bus Stop Using CFD. / Yoo, Yup; Lim, Jonghun; An, Nahyeon et al.
Proceedings of the 5th International Conference on Building Energy and Environment. ed. / Liangzhu Leon Wang; Hua Ge; Mohamed Ouf; Zhiqiang John Zhai; Dahai Qi; Chanjuan Sun; Dengjia Wang. Springer Science and Business Media Deutschland GmbH, 2023. p. 2025-2033 (Environmental Science and Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Cho, Hyungtae

AU - Kim, Junghwan

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AB - Among air pollutants generated in cities, NO2 occurs in vehicles and seriously impacts passengers’ health waiting at bus stops. Therefore, installing an air purification system inside a bus stop was proposed to improve public health. This study confirmed the effect of removing NO2 using computational fluid dynamics when an air purification system was installed at a bus stop. The NO2 concentration inside the bus stop was observed according to bus positions under three scenarios. The scenario with the highest NO2 concentration at the bus stop was divided into three additional scenarios according to the installation location of the air purification system to confirm the NO2 removal effect. The NO2 concentration was the highest when the bus exhaust pipe was in the middle of the bus stop entrance, and when both an air purification system and air curtains were used, the NO2 removal effect was approximately 89.4% higher than the worst-scenario.

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Yoo Y, Lim J, An N, Kwon H, Cho H, Kim J. Analysis of NO₂ Removal Efficiency of Air Purification System in Bus Stop Using CFD. In Wang LL, Ge H, Ouf M, Zhai ZJ, Qi D, Sun C, Wang D, editors, Proceedings of the 5th International Conference on Building Energy and Environment. Springer Science and Business Media Deutschland GmbH. 2023. p. 2025-2033. (Environmental Science and Engineering). doi: 10.1007/978-981-19-9822-5_214