Study on heavy gas leakage accidents at sea based on Slab-Gauss plume model

YANG Shuo; LI Ying; LIU Da-gang; FU Jin-yu; ZHAO Shu-lin

doi:10.16411/j.cnki.issn1006-7736.2019.04.021

Journal of Dalian Maritime University >

2019 , Vol. 45 >Issue 4: 153 - 160

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2019.04.021

Study on heavy gas leakage accidents at sea based on Slab-Gauss plume model

YANG Shuo ,
LI Ying ,
LIU Da-gang ,
FU Jin-yu ,
ZHAO Shu-lin

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（Navigation College, Dalian Maritime University, Dalian 116026，China）

Received date: 2019-05-28

Revised date: 2019-06-14

Online published: 2019-06-14

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Abstract

In this paper, a Slab-Gauss plume diffusion model was designed for heavy gas at sea, in which the Slab model was used in the settling stage of heavy gas, and the Gauss plume model was used in the turbulent diffusion stage of heavy gas, and both were combined by a virtual source.At the same time,the model parameters in the marine environment were optimized, including wind speed, effective height of leakage source and diffusion parameters.The adjusted parameters were input into the model to quantitatively visualize the concentration of heavy gas in the accident area. The results show that at the accident point, the heavy gas diffuses to the northeast at 8 m/s wind speed, and the explosion limit is within the equal concentration curve at 98 m downwind direction. At the turning point of 31 m, the two models converge basically. After on-site testing by experts , taking (100 m, 0.0025 kg/m³) as the calibration point, corrected model simulation basically coincides with the diffusion concentration point at that time. Therefore, the model can visualize the diffusion concentration region of heavy gas leakage, and provide technical support for subsequent emergency rescue.

Key words： heavy gas leakage at sea; Slab-Gauss plume model; marine environmental parameters; quantitative visualization

Cite this article

YANG Shuo , LI Ying , LIU Da-gang , FU Jin-yu , ZHAO Shu-lin . Study on heavy gas leakage accidents at sea based on Slab-Gauss plume model[J]. Journal of Dalian Maritime University, 2019 , 45(4) : 153 -160 . DOI: 10.16411/j.cnki.issn1006-7736.2019.04.021

References

[1]Britter, R E. Atmospheric dispersion of dense gases[J]. Annual Review of Fluid Mechanics,1989,21:317-344.
[2]张启平,麻德贤. 危险物泄漏扩散过程的重气效应[J]. 北京化工大学学报(自然科学版),1998(03):88-92.
ZHANG Qi-ping,MA De-xian. Heavy gas effect in the process of dangerous material leakage and diffusion[J]. Journal of Beijing University of Chemical Technology (Natural Science Edition),1998(03):88-92.
[3]黄琴,蒋军成. 重气扩散研究综述[J]. 安全与环境工程,2007(04):36-39.
HANG Qin，JIANG Jun-cheng. Review of heavy gas diffusion[J]. Safety and Environmental Engineering，2007(04)：36-39.
[4]孙莉,赵颖,曹飞,等. 危险化学品泄漏扩散模型的研究现状分析与比较[J]. 中国安全科报,2011,21(01):37-42.
SUN Li,ZHAO Ying,CAO Fei,etal. Analysis and comparison of research status of hazardous chemicals leakage and diffusion models[J].China Security Science Journal,2011,21(01):37-42.
[5]Van Ulden A.P. On the spreading of a heavy gas released near the ground[M]. On Loss Prevention and Safety Promotion in the Process Industries,1974:211-226.
[6]Webber D.M，Kunsch J.P. Simple box model for dense-gas dispersion in a straight sloping channel[J]. Journal of Hazardous Materials,2000(1).
[7]颜伟文,韩光胜. 平板模型对液化石油气连续泄漏扩散模拟分析与探讨[J]. 中国安全科学学报,2009,19(11):56-61+178-179.
YAN Wei-wen，HANG Guang-sheng. Simulating analysis and discussion on continuous leakage and diffusion of LPG by Plate Model[J].China Safety Science Journal，2009，19(11)：56-61+178-179.
[8]苑伟民,袁宗明,毕建伟,等. LNG泄漏扩散模拟研究[J]. 天然气与石油，2011,29(04):1-5+91.
YUAN Wei-min，YUAN Zong-ming，BI Jian-wei,etal.Simulation of LNG leakage diffusion[J].Natural Gas and Oil，2011，29(04)：1-5+91.
[9]Stockie, J. M. The Mathematics of Atmospheric Dispersion Modeling[J]. Society for Industrial and Applied Mathematics,2011,53(2):349-372.
[10]B. Ristic, A. Gunatilaka and R. Gailis, "Achievable accuracy in parameter estimation of a Gaussian plume dispersion model," 2014 IEEE Workshop on Statistical Signal Processing (SSP), Gold Coast, VIC, 2014, pp. 209-212.
[11HE Ning，WU Zong-zhi，ZHENG Wei. Simulation of an Improved Gaussian model for Hadarzous Gas Diffusion[J].Journal of Basic Science and Engineering，2010，18(04)：571-580.
[12]付金宇,李颖,吴鹏,等. 海上事故有害气体的扩散研究——以“桑吉”轮撞船事故为例[J]. 海洋通
报,2019,38(01):115-120.
FU Jin-yu ，LI Ying，WU Peng,etal. Study on the diffusion of harmful gases after marine accidents:
taking the Sanchi ship collision accident as an example[J]. Marine Science Bulletin,2019,38(01):115-120.
[13]彭振中. 渤海海域散装液化品泄漏事故风险评价及应急对策研究[D]. 武汉理工大学,2014.
PENG Zhen-zhong. Bulk liquid chemicals spill risk assessment and emergency countermeasures research and safety in bohai sea[D]. Wu Han University Of Technology,2014.
[14]李颖,付金宇,侯永超.有害气体检测的电化学技术的应用发展[J]. 科学技术与工程，2018,18(3):132-141.
LI Ying，FU Jin-yu，HOU Yong-chao Application and development of electrochemical technology for harmful gas detection[J].Science Technology and Engineering，2018，18(3)：132—141.
[15]史晓娟. LNG泄漏扩散规律的研究[D]. 山东建筑大学,2015.
SHI Xiao-juan.Study on leakage diffusion law of LNG[D].Shandong Jianzhu University，2015.
[16]付金宇，李颖.基于高斯烟羽模型的船舶尾气扩散研究[J]. 海洋通报,2018,37(2):235-240.
FU Jin-yu ，LI Ying. Study on ship’s exhaust—gas diffusion based on Gaussian plume model[J]. Marine Science Bulletin, 2018,37(2):235-240.
[17]宇德明. 易燃、易爆、有毒危险品储运过程定量风险评价[M]. 北京:中国铁道出版社,2000:53-54.
YU De-ming.Quantitative risk evaluation of flammable and explosive toxic hazard during the storage and transportation[M].Beijing：China Railway Publishing House，2000：53-54.
[18]潘毅伟,张礼敬,陶刚,等. 丙烯管道连续泄漏扩散爆炸事故分析[J]. 安全与环境学报,2011,11(06):185-189.
PAN Yi-wei，ZHANG Li-jing，Tao Gang,etal.Analysis of the causes of continuous leakage of propylene pipeline and the unexpected follow-up diffusion and explosion[J].Journal of Safety and Environment，2011，11(06)：185-189.
[19]李云云. 高斯烟羽模型的改进及在危化品泄漏事故模拟中的应用[D]. 广州大学,2013.
LING Yun-yun. Improvement of Gauss plume model and its application in simulation of hazardous chemicals leakage accident[D].Guangzhou University，2013.
[20]金良安,刘文鹏,高占胜,等. 大气稳定度对海面人工稀氧区形成的影响[J]. 交通运输工程学报,2016(06):99-106.
JIN Liang-an，LIU Wen-peng，GAO Zhan-sheng,etal.
Effect of Atmospheric Stability on the Formation of Artificial Dilute Oxygen Zone on Sea Surface[J].Journal of Traffic and Transportation Engineering，2016(06)：99-106.
[21]王锡侯,宋有强. 台风波浪推算方法——计算推算点深水最大风浪要素的建议方法[J]. 海洋通报,1982 (03):6-13.
WANG Xi-hou，SONG You-qiang. Typhoon Wave Estimation Method-Suggested Method for Calculating Maximum Wind Wave Elements in Deep Water at Estimated Points[J]. Marine Science Bulletin，1982 (03)：6-13.

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