Research on Air Infiltration Characteristics of High-speed Railway Station
High-speed railway station has a large space and a large amount of air infiltration, which has great influences on the thermal load, the thermal environment and the air quality. In this paper, the air infiltration and its distribution characteristics in winter and summer in different climatic zones...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2021-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_03041.pdf |
| _version_ | 1818363825406083072 |
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| author | Bin Qian Liangliang Sun Tao Yu Bo Lei Haiquan Bi |
| author_facet | Bin Qian Liangliang Sun Tao Yu Bo Lei Haiquan Bi |
| author_sort | Bin Qian |
| collection | DOAJ |
| description | High-speed railway station has a large space and a large amount of air infiltration, which has great influences on the thermal load, the thermal environment and the air quality. In this paper, the air infiltration and its distribution characteristics in winter and summer in different climatic zones are determined by CO2 concentration method. The results showed that buoyancy-driven pressure played a dominant role, and the infiltration air volume of 2.8 h-1 in winter is larger than that of 2.0 h-1 in summer. The infiltration air volume in the hot summer and cold winter zone and the hot summer and warm winter zone is larger than that in the cold zone. When the mechanical ventilation system for fresh air is turned off, the indoor CO2 concentration meets the human safety threshold. But it can be found that when the air infiltration volume is small enough to a certain extent, the air infiltration volume has a poor dilutive effect on pollutants in the deeper parts of the station. The tradeoff between the utilization of air infiltration and the elimination of mechanical ventilation needs to be furthered considered. |
| first_indexed | 2024-12-13T21:54:38Z |
| format | Article |
| id | doaj.art-bcf51eed20834aacbd5a956c36f0d9a2 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-13T21:54:38Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-bcf51eed20834aacbd5a956c36f0d9a22022-12-21T23:30:10ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012610304110.1051/e3sconf/202126103041e3sconf_icemee2021_03041Research on Air Infiltration Characteristics of High-speed Railway StationBin Qian0Liangliang Sun1Tao Yu2Bo Lei3Haiquan Bi4School of Mechanical Engineering, Southwest Jiaotong UniversitySchool of Mechanical Engineering, Southwest Jiaotong UniversitySchool of Mechanical Engineering, Southwest Jiaotong UniversitySchool of Mechanical Engineering, Southwest Jiaotong UniversitySchool of Mechanical Engineering, Southwest Jiaotong UniversityHigh-speed railway station has a large space and a large amount of air infiltration, which has great influences on the thermal load, the thermal environment and the air quality. In this paper, the air infiltration and its distribution characteristics in winter and summer in different climatic zones are determined by CO2 concentration method. The results showed that buoyancy-driven pressure played a dominant role, and the infiltration air volume of 2.8 h-1 in winter is larger than that of 2.0 h-1 in summer. The infiltration air volume in the hot summer and cold winter zone and the hot summer and warm winter zone is larger than that in the cold zone. When the mechanical ventilation system for fresh air is turned off, the indoor CO2 concentration meets the human safety threshold. But it can be found that when the air infiltration volume is small enough to a certain extent, the air infiltration volume has a poor dilutive effect on pollutants in the deeper parts of the station. The tradeoff between the utilization of air infiltration and the elimination of mechanical ventilation needs to be furthered considered.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_03041.pdf |
| spellingShingle | Bin Qian Liangliang Sun Tao Yu Bo Lei Haiquan Bi Research on Air Infiltration Characteristics of High-speed Railway Station E3S Web of Conferences |
| title | Research on Air Infiltration Characteristics of High-speed Railway Station |
| title_full | Research on Air Infiltration Characteristics of High-speed Railway Station |
| title_fullStr | Research on Air Infiltration Characteristics of High-speed Railway Station |
| title_full_unstemmed | Research on Air Infiltration Characteristics of High-speed Railway Station |
| title_short | Research on Air Infiltration Characteristics of High-speed Railway Station |
| title_sort | research on air infiltration characteristics of high speed railway station |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_03041.pdf |
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