Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed Vessel
A simplified model that calculates the deflagration pressure–time curves of a hydrogen explosion was proposed. The deflagration parameters (pressure peak, duration, deflagration index, and impulse) of hydrogen–air mixtures with different hydrogen concentrations were experimentally investigated. The...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/22/8630 |
| _version_ | 1797465344419299328 |
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| author | Huadao Xing Runze Yu Guangan Xu Xiaodong Li Yanyu Qiu Derong Wang Bin Li Lifeng Xie |
| author_facet | Huadao Xing Runze Yu Guangan Xu Xiaodong Li Yanyu Qiu Derong Wang Bin Li Lifeng Xie |
| author_sort | Huadao Xing |
| collection | DOAJ |
| description | A simplified model that calculates the deflagration pressure–time curves of a hydrogen explosion was proposed. The deflagration parameters (pressure peak, duration, deflagration index, and impulse) of hydrogen–air mixtures with different hydrogen concentrations were experimentally investigated. The results show that the pressure curves calculated by the model are consistent with experimental data pertaining to a methane and hydrogen explosion. By comparison, the pressure peak and deflagration index are found to be influenced by the aspect ratio and surface area of vessels. The impulse and explosion times at fuel-lean hydrogen concentrations are greater than those at fuel-rich concentrations. When the hydrogen concentration is between 34 vol.% and 18 vol.%, the greatest explosion damage effect is formed by both the overpressure and the impulse, which should be considered for hydrogen explosion safety design in industrial production. |
| first_indexed | 2024-03-09T18:21:12Z |
| format | Article |
| id | doaj.art-0e01fe4a42b44d7a83942066d2c20203 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T18:21:12Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0e01fe4a42b44d7a83942066d2c202032023-11-24T08:16:04ZengMDPI AGEnergies1996-10732022-11-011522863010.3390/en15228630Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed VesselHuadao Xing0Runze Yu1Guangan Xu2Xiaodong Li3Yanyu Qiu4Derong Wang5Bin Li6Lifeng Xie7School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaState Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, The Army Engineering University of PLA, Nanjing 210007, ChinaState Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, The Army Engineering University of PLA, Nanjing 210007, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaState Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, The Army Engineering University of PLA, Nanjing 210007, ChinaState Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, The Army Engineering University of PLA, Nanjing 210007, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaA simplified model that calculates the deflagration pressure–time curves of a hydrogen explosion was proposed. The deflagration parameters (pressure peak, duration, deflagration index, and impulse) of hydrogen–air mixtures with different hydrogen concentrations were experimentally investigated. The results show that the pressure curves calculated by the model are consistent with experimental data pertaining to a methane and hydrogen explosion. By comparison, the pressure peak and deflagration index are found to be influenced by the aspect ratio and surface area of vessels. The impulse and explosion times at fuel-lean hydrogen concentrations are greater than those at fuel-rich concentrations. When the hydrogen concentration is between 34 vol.% and 18 vol.%, the greatest explosion damage effect is formed by both the overpressure and the impulse, which should be considered for hydrogen explosion safety design in industrial production.https://www.mdpi.com/1996-1073/15/22/8630pressure profileimpulsehydrogen concentrationdistributed calculation model |
| spellingShingle | Huadao Xing Runze Yu Guangan Xu Xiaodong Li Yanyu Qiu Derong Wang Bin Li Lifeng Xie Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed Vessel Energies pressure profile impulse hydrogen concentration distributed calculation model |
| title | Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed Vessel |
| title_full | Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed Vessel |
| title_fullStr | Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed Vessel |
| title_full_unstemmed | Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed Vessel |
| title_short | Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed Vessel |
| title_sort | theoretical and experimental investigation of explosion characteristics of hydrogen explosion in a closed vessel |
| topic | pressure profile impulse hydrogen concentration distributed calculation model |
| url | https://www.mdpi.com/1996-1073/15/22/8630 |
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