Analysis of dynamic characteristics of CO2 concentration in subway cars
The air environment in the subway car has a great impact on the comfort and health of passengers. In order to know the real air quality in the car when the train is running, this paper takes CO2 as an indicator and conducts a field test on Line 11 of Shanghai Metro to study and analyse the dynamic C...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2022-01-01
|
| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_02019.pdf |
| _version_ | 1811337857608974336 |
|---|---|
| author | Yang Huagan Wang Haiying Wu Yan |
| author_facet | Yang Huagan Wang Haiying Wu Yan |
| author_sort | Yang Huagan |
| collection | DOAJ |
| description | The air environment in the subway car has a great impact on the comfort and health of passengers. In order to know the real air quality in the car when the train is running, this paper takes CO2 as an indicator and conducts a field test on Line 11 of Shanghai Metro to study and analyse the dynamic CO2 concentration and the fresh air rate in the subway car. The results show that the CO2 concentration increases from the head car to the tail car, and the fresh air volume decreases from the head car to the tail car is the reason for the large difference of CO2 concentration in different cars. The CO2 concentration in the car is greatly affected by the passenger load, and the maximum value of CO2 concentration in the morning peak can reach 2.3 times that of the normal hours. The background CO2 concentration has a certain influence on the CO2 concentration in the car, and the CO2 concentration in the underground line is higher than that in the elevated line in the same carriage. The CO2 concentration in subway cars of the underground line in the morning peak is significantly higher than 1500 ppm, which indicates that the dilution effects of the ventilation can’t meet the fresh air requirements in the morning peak. The research in this paper can provide a reference for the design of the ventilation system of subway trains and the environmental control in the car. |
| first_indexed | 2024-04-13T18:01:08Z |
| format | Article |
| id | doaj.art-dfef0a12776644b7bfd7e0110fb4afcf |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-13T18:01:08Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-dfef0a12776644b7bfd7e0110fb4afcf2022-12-22T02:36:14ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013560201910.1051/e3sconf/202235602019e3sconf_roomvent2022_02019Analysis of dynamic characteristics of CO2 concentration in subway carsYang Huagan0Wang Haiying1Wu Yan2School of Mechanical Engineering, Tongji UniversitySchool of Mechanical Engineering, Tongji UniversitySchool of Mechanical Engineering, Tongji UniversityThe air environment in the subway car has a great impact on the comfort and health of passengers. In order to know the real air quality in the car when the train is running, this paper takes CO2 as an indicator and conducts a field test on Line 11 of Shanghai Metro to study and analyse the dynamic CO2 concentration and the fresh air rate in the subway car. The results show that the CO2 concentration increases from the head car to the tail car, and the fresh air volume decreases from the head car to the tail car is the reason for the large difference of CO2 concentration in different cars. The CO2 concentration in the car is greatly affected by the passenger load, and the maximum value of CO2 concentration in the morning peak can reach 2.3 times that of the normal hours. The background CO2 concentration has a certain influence on the CO2 concentration in the car, and the CO2 concentration in the underground line is higher than that in the elevated line in the same carriage. The CO2 concentration in subway cars of the underground line in the morning peak is significantly higher than 1500 ppm, which indicates that the dilution effects of the ventilation can’t meet the fresh air requirements in the morning peak. The research in this paper can provide a reference for the design of the ventilation system of subway trains and the environmental control in the car.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_02019.pdf |
| spellingShingle | Yang Huagan Wang Haiying Wu Yan Analysis of dynamic characteristics of CO2 concentration in subway cars E3S Web of Conferences |
| title | Analysis of dynamic characteristics of CO2 concentration in subway cars |
| title_full | Analysis of dynamic characteristics of CO2 concentration in subway cars |
| title_fullStr | Analysis of dynamic characteristics of CO2 concentration in subway cars |
| title_full_unstemmed | Analysis of dynamic characteristics of CO2 concentration in subway cars |
| title_short | Analysis of dynamic characteristics of CO2 concentration in subway cars |
| title_sort | analysis of dynamic characteristics of co2 concentration in subway cars |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_02019.pdf |
| work_keys_str_mv | AT yanghuagan analysisofdynamiccharacteristicsofco2concentrationinsubwaycars AT wanghaiying analysisofdynamiccharacteristicsofco2concentrationinsubwaycars AT wuyan analysisofdynamiccharacteristicsofco2concentrationinsubwaycars |