Numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusion
The leakage of tank oils, once occurred, will bring about adverse effect to ambient environment, social economy and safety of tank farm, and even cause safety accident. Herein, the leakage diffusion process of oil and gas was simulated with the improved Gaussian puff model to find out the concentrat...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Oil & Gas Storage and Transportation
2022-09-01
|
| Series: | You-qi chuyun |
| Subjects: | |
| Online Access: | http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.09.011 |
| _version_ | 1797210176598573056 |
|---|---|
| author | Kaixi XIAO Lei HOU Ya'nan HUANG Yanhao LI Chong CHAI Rui ZHANG |
| author_facet | Kaixi XIAO Lei HOU Ya'nan HUANG Yanhao LI Chong CHAI Rui ZHANG |
| author_sort | Kaixi XIAO |
| collection | DOAJ |
| description | The leakage of tank oils, once occurred, will bring about adverse effect to ambient environment, social economy and safety of tank farm, and even cause safety accident. Herein, the leakage diffusion process of oil and gas was simulated with the improved Gaussian puff model to find out the concentration distribution law of oil and gas in tank farm under different environmental wind speeds and atmospheric stability. Meanwhile, the tank farm was divided into the explosive hazardous area, flash fire hazardous area and suffocation hazardous area according to the risk level of oil and gas concentration. By analyzing the influence of environmental wind speed and atmospheric stability on migration and diffusion of oil and gas puff, the influence law of environmental conditions of tank farm on concentration distribution of oil and gas, as well as the scope of hazardous area, was obtained. Specifically, the migration and diffusion of oil and gas puff is intensified with the increasing of environmental wind speed, but the concentration of oil and gas in the tank farm is reduced, and the hazardous areas of different grades are reduced accordingly. With the increase of atmospheric stability, the diffusion of oil and gas puff becomes weaker, the influence range of concentration along the downwind direction increases, but the influence range along the crosswind direction decreases. Because of the fluctuation of wind speed, the oil and gas puff may gather and form an oil and gas accumulation area at high concentration. Generally, the lower the environmental wind speed and the more stable the atmosphere, the easier the oil and gas puff to gather. The improved Gaussian puff model may more accurately reflect the leakage diffusion law of oil and gas, and predict the concentration distribution of oil and gas, which could provide guidance to the safe operation and management of tanks. |
| first_indexed | 2024-04-24T10:06:26Z |
| format | Article |
| id | doaj.art-82f5d6fc4d644570bab5d3c0cc856428 |
| institution | Directory Open Access Journal |
| issn | 1000-8241 |
| language | zho |
| last_indexed | 2024-04-24T10:06:26Z |
| publishDate | 2022-09-01 |
| publisher | Editorial Office of Oil & Gas Storage and Transportation |
| record_format | Article |
| series | You-qi chuyun |
| spelling | doaj.art-82f5d6fc4d644570bab5d3c0cc8564282024-04-13T02:18:02ZzhoEditorial Office of Oil & Gas Storage and TransportationYou-qi chuyun1000-82412022-09-014191079108610.6047/j.issn.1000-8241.2022.09.011yqcy-41-9-1079Numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusionKaixi XIAO0Lei HOU1Ya'nan HUANG2Yanhao LI3Chong CHAI4Rui ZHANG5China University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum EngineeringChina University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum EngineeringChina University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum EngineeringChina University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum EngineeringChina University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum EngineeringChina University of Petroleum (Beijing)//National Engineering Laboratory for Pipeline Safety//MOE Key Laboratory of Petroleum EngineeringThe leakage of tank oils, once occurred, will bring about adverse effect to ambient environment, social economy and safety of tank farm, and even cause safety accident. Herein, the leakage diffusion process of oil and gas was simulated with the improved Gaussian puff model to find out the concentration distribution law of oil and gas in tank farm under different environmental wind speeds and atmospheric stability. Meanwhile, the tank farm was divided into the explosive hazardous area, flash fire hazardous area and suffocation hazardous area according to the risk level of oil and gas concentration. By analyzing the influence of environmental wind speed and atmospheric stability on migration and diffusion of oil and gas puff, the influence law of environmental conditions of tank farm on concentration distribution of oil and gas, as well as the scope of hazardous area, was obtained. Specifically, the migration and diffusion of oil and gas puff is intensified with the increasing of environmental wind speed, but the concentration of oil and gas in the tank farm is reduced, and the hazardous areas of different grades are reduced accordingly. With the increase of atmospheric stability, the diffusion of oil and gas puff becomes weaker, the influence range of concentration along the downwind direction increases, but the influence range along the crosswind direction decreases. Because of the fluctuation of wind speed, the oil and gas puff may gather and form an oil and gas accumulation area at high concentration. Generally, the lower the environmental wind speed and the more stable the atmosphere, the easier the oil and gas puff to gather. The improved Gaussian puff model may more accurately reflect the leakage diffusion law of oil and gas, and predict the concentration distribution of oil and gas, which could provide guidance to the safe operation and management of tanks.http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.09.011oil tankleakage diffusionoil and gas accumulationgaussian puff modelconcentration distributionhazardous area |
| spellingShingle | Kaixi XIAO Lei HOU Ya'nan HUANG Yanhao LI Chong CHAI Rui ZHANG Numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusion You-qi chuyun oil tank leakage diffusion oil and gas accumulation gaussian puff model concentration distribution hazardous area |
| title | Numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusion |
| title_full | Numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusion |
| title_fullStr | Numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusion |
| title_full_unstemmed | Numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusion |
| title_short | Numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusion |
| title_sort | numerical simulation on concentration distribution law of oil and gas in tank farm during leakage diffusion |
| topic | oil tank leakage diffusion oil and gas accumulation gaussian puff model concentration distribution hazardous area |
| url | http://yqcy.xml-journal.net/cn/article/doi/10.6047/j.issn.1000-8241.2022.09.011 |
| work_keys_str_mv | AT kaixixiao numericalsimulationonconcentrationdistributionlawofoilandgasintankfarmduringleakagediffusion AT leihou numericalsimulationonconcentrationdistributionlawofoilandgasintankfarmduringleakagediffusion AT yananhuang numericalsimulationonconcentrationdistributionlawofoilandgasintankfarmduringleakagediffusion AT yanhaoli numericalsimulationonconcentrationdistributionlawofoilandgasintankfarmduringleakagediffusion AT chongchai numericalsimulationonconcentrationdistributionlawofoilandgasintankfarmduringleakagediffusion AT ruizhang numericalsimulationonconcentrationdistributionlawofoilandgasintankfarmduringleakagediffusion |