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基于复杂网络的天然气管道网络风险传播研究 被引量:2
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作者 戴剑勇 甘美艳 +2 位作者 张美荣 毛佳志 刘朝 《复杂系统与复杂性科学》 CAS CSCD 北大核心 2024年第3期69-76,共8页
为改善管道安全监控与维护,探究天然气管道网络最优风险传播路径。首先,基于复杂网络理论构建网络拓扑结构,利用应用熵权—TOPSIS法对网络节点重要性排序。其次,构建天然气管道网络风险传播模型,定义网络节点失效率和脆弱度,得到蓄意破... 为改善管道安全监控与维护,探究天然气管道网络最优风险传播路径。首先,基于复杂网络理论构建网络拓扑结构,利用应用熵权—TOPSIS法对网络节点重要性排序。其次,构建天然气管道网络风险传播模型,定义网络节点失效率和脆弱度,得到蓄意破坏与随机破坏策略下节点的风险传播度和风险最优传播路径。最后,以上海市天然气管道网络为例进行实证分析,结果表明,级联风险情况下的蓄意破坏传播风险度总和大于随机破坏,为管道拓扑优化与维护提供依据。 展开更多
关键词 复杂网络 天然气管道网络 风险传播路径 蓄意破坏 随机破坏
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A successful case of hydrocarbon dew point analysis during mixing of natural gases in transmission pipeline
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作者 王玮 段纪淼 +4 位作者 李明 信鹏 史博会 张文伟 宫敬 《Journal of Central South University》 SCIE EI CAS 2013年第9期2454-2458,共5页
The occurrence of liquid condensation in natural gas accounts for new challenges during the interoperability between transmission networks,where condensation would lead to higher pressure drops,lower line capacity and... The occurrence of liquid condensation in natural gas accounts for new challenges during the interoperability between transmission networks,where condensation would lead to higher pressure drops,lower line capacity and may cause safety problem.A successful case of hydrocarbon dew point(HCDP)analysis is demonstrated during the mixing of natural gases in the transmission pipeline.Methods used to predict the HCDP are combined with equations of state(EOS)and characterization of C6+heavy components.Predictions are compared with measured HCDP with different concentrations of mixed gases at a wide range of pressure and temperature scopes.Software named"PipeGasAnalysis"is developed and helps to systematic analyze the condensation problem,which will provide the guidance for the design and operation of the network. 展开更多
关键词 natural gas mixing proportion phase behaviour hydrocarbon dew point liquid condensation
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