Simulation of the Gas Distribution Law and Operational Risk Analysis of a Vertical Gas Tank in a Ventilation State
As a type of airtight equipment, vertical gas tanks are prone to accumulations of toxic and harmful gases due to their poor ventilation and narrow space. This poses many safety hazards. Therefore, we conducted a FLUENT simulation for vertical gas tanks with different diameters. The results indicated...
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MDPI AG
2023-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/19/6855 |
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| author | Chunli Yang Yinqing Wang Yan Liu Xiangchun Li |
| author_facet | Chunli Yang Yinqing Wang Yan Liu Xiangchun Li |
| author_sort | Chunli Yang |
| collection | DOAJ |
| description | As a type of airtight equipment, vertical gas tanks are prone to accumulations of toxic and harmful gases due to their poor ventilation and narrow space. This poses many safety hazards. Therefore, we conducted a FLUENT simulation for vertical gas tanks with different diameters. The results indicated that the larger the diameter, the longer the required ventilation time. It was necessary to monitor the gas concentration after ventilation for at least 6 h when the tank diameter was 2.6 m, after ventilation for at least 24 h when the tank diameter was 5.2 m, and after ventilation for at least 80 h when the tank diameter was 7.8 m. To ensure comprehensive monitoring, at least one monitoring point was required to be placed at the upper and lower ends of the vertical gas tank, respectively. Monitoring was initiated after these requirements were reached. A theoretical numerical analysis and an experimental verification analysis were conducted on the simulation results. The variation trend of the simulation value, the theoretical value, and the experimental test value were the same. The measured value of the ventilation duration was greater than the theoretical value of the ventilation duration and the simulation value of the ventilation duration. Therefore, the simulation results and theoretical analysis could be used for a risk analysis of gas tanks. The determination of ventilation characteristics via a simulation of vertical gas tanks has a practical significance when guiding on-site operations. |
| first_indexed | 2024-03-10T21:45:41Z |
| format | Article |
| id | doaj.art-62c246cb9cdd47f2a3582762a4849065 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T21:45:41Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-62c246cb9cdd47f2a3582762a48490652023-11-19T14:19:49ZengMDPI AGEnergies1996-10732023-09-011619685510.3390/en16196855Simulation of the Gas Distribution Law and Operational Risk Analysis of a Vertical Gas Tank in a Ventilation StateChunli Yang0Yinqing Wang1Yan Liu2Xiangchun Li3Occupational Hazards Assessment and Control Technology Center, Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing 100054, ChinaSchool of Emergency Management and Safety Engineering, China University of Mining & Technology, Beijing 100083, ChinaOccupational Hazards Assessment and Control Technology Center, Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing 100054, ChinaSchool of Emergency Management and Safety Engineering, China University of Mining & Technology, Beijing 100083, ChinaAs a type of airtight equipment, vertical gas tanks are prone to accumulations of toxic and harmful gases due to their poor ventilation and narrow space. This poses many safety hazards. Therefore, we conducted a FLUENT simulation for vertical gas tanks with different diameters. The results indicated that the larger the diameter, the longer the required ventilation time. It was necessary to monitor the gas concentration after ventilation for at least 6 h when the tank diameter was 2.6 m, after ventilation for at least 24 h when the tank diameter was 5.2 m, and after ventilation for at least 80 h when the tank diameter was 7.8 m. To ensure comprehensive monitoring, at least one monitoring point was required to be placed at the upper and lower ends of the vertical gas tank, respectively. Monitoring was initiated after these requirements were reached. A theoretical numerical analysis and an experimental verification analysis were conducted on the simulation results. The variation trend of the simulation value, the theoretical value, and the experimental test value were the same. The measured value of the ventilation duration was greater than the theoretical value of the ventilation duration and the simulation value of the ventilation duration. Therefore, the simulation results and theoretical analysis could be used for a risk analysis of gas tanks. The determination of ventilation characteristics via a simulation of vertical gas tanks has a practical significance when guiding on-site operations.https://www.mdpi.com/1996-1073/16/19/6855vertical gas tankFLUENT simulationnatural ventilationgas transportrisk analysis |
| spellingShingle | Chunli Yang Yinqing Wang Yan Liu Xiangchun Li Simulation of the Gas Distribution Law and Operational Risk Analysis of a Vertical Gas Tank in a Ventilation State Energies vertical gas tank FLUENT simulation natural ventilation gas transport risk analysis |
| title | Simulation of the Gas Distribution Law and Operational Risk Analysis of a Vertical Gas Tank in a Ventilation State |
| title_full | Simulation of the Gas Distribution Law and Operational Risk Analysis of a Vertical Gas Tank in a Ventilation State |
| title_fullStr | Simulation of the Gas Distribution Law and Operational Risk Analysis of a Vertical Gas Tank in a Ventilation State |
| title_full_unstemmed | Simulation of the Gas Distribution Law and Operational Risk Analysis of a Vertical Gas Tank in a Ventilation State |
| title_short | Simulation of the Gas Distribution Law and Operational Risk Analysis of a Vertical Gas Tank in a Ventilation State |
| title_sort | simulation of the gas distribution law and operational risk analysis of a vertical gas tank in a ventilation state |
| topic | vertical gas tank FLUENT simulation natural ventilation gas transport risk analysis |
| url | https://www.mdpi.com/1996-1073/16/19/6855 |
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