https://orcid.org/0000-0002-4378-2466
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ABSTRACT
In order to study the effect of ignition position on the deflagration characteristics of oil mist in ship cabins, a self-constructed simulated cabin experimental platform was created to conduct experiments on the effect of ignition position on oil mist deflagration characteristics. The results indicate that the deflagration process of oil mist under various conditions can be divided into four stages, they are respectively deflagration, turbulent combustion, flame stretch and self-extinguishing. The peak velocity of flame propagation decreases with the increasing of the distance between the ignition position and the nozzle. When the distance increases from 13 cm to 83 cm, the peak velocity decreases by 6 m/s with a reduction of 57.14%. The peak temperature inside the cabin decreases with the increasing of the distance between the ignition position and the nozzle. When the distance increases from 13 cm to 83 cm, the peak temperature decreases by 118.2°C with a reduction of 13.94%. The pressure distribution inside the cabin after ignition increases first and then decreases. As the distance between the ignition position and the nozzle increases, the peak pressure at various positions also increases, and the maximum peak pressure is located at 110 cm in the cabin. At the ignition position of 83 cm, the peak pressure reaches the maximum value of 1.603 MPa, which increases by 0.858 MPa (115.17%) compared with the ignition position of 13 cm.
Acknowledgements
This work was financially supported by National Key R&D Plan“‘Internet of Things and Smart City Key Technologies and Demonstration’” key special project (2020YFB2103504); Innovative Talents Team Project of “Six Talents Peaks” in Jiangsu Province (No.TD-JNHB-013); National Key R&D Program of China (No.2017YFC0805100); The Natural Science Research Project of Higher Education Institutions of Jiangsu Province (No.20KJB620004); Major Projects supported by the Natural Science Research of Jiangsu Higher Education Institutions (No.17KJA440001); 2022 Jiangsu graduate research practice plan project(No.SJCX22_1402; No.SJCX22_1400; No.SJCX22_1403; No.KYCX22_3102); 2023 Jiangsu graduate research practice plan project (No.SJCX23_1566).
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Notes on contributors
Ning Zhou
Ning Zhou, male, PhD, professor, doctoral supervisor, mainly focuses on petrochemical safety and oil and gas storage and transportation engineering
Yun Wang
Yun Wang, male, graduate student, mainly focusing on oil and gas storage and transportation engineering
Xue Li
Xue Li, female, PhD, associate professor, master's supervisor, mainly focusing on petroleum engineering safety
Qing Yin
Qing Yin, male, graduate student, mainly focusing on oil and gas storage and transportation engineering
Zhuohan Shi
Zhuohan Shi, male, graduate student, mainly focusing on oil and gas storage and transportation engineering
Pengfei Zhao
Pengfei Zhao, male, graduate student, mainly focusing on oil and gas storage and transportation engineering
Tianxiang Sun
Tianxiang Sun, male, graduate student, mainly focusing on oil and gas storage and transportation engineering
Yanxia Zhang
Yanxia Zhang, female, graduate student, mainly focusing on oil and gas storage and transportation engineering
Chunhai Yang
Chunhai Yang, male, PhD, associate professor, mainly focuses on safety engineering
Bing Chen
Bing Chen, male, PhD, professor level senior engineer, mainly engaged in research on finite space fire dynamics and risk assessment methods
Weiqiu Huang
Weiqiu Huang, male, doctoral, professor, doctoral supervisor, mainly focusing on the basic theory and application of oil and gas recovery
Huijun Zhao
Huijun Zhao, male, professor, master's supervisor, mainly focuses on oil and gas pipeline transportation technology