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学者姓名：尹鹏博
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当液氨管道处于事故泄漏、停输超压或计划维护等情况时,可采用泄放的方式对管内液氨进行泄压回收.由于氨的高体积膨胀性,其泄放过程的节流效应会导致管内温度骤降,加剧管道受冷收缩和脆性断裂的风险.针对目前液氨管道泄放特性研究不足,参考国内外相关设计和运行参数,建立液氨管道泄放仿真模型,探讨管长、管径和操作条件(温度、压力)影响下的泄放特征参数发展规律.研究结果表明:随着管道长度减小,泄放初期管内压降和温降增大,泄放过程压力和温度随时间下降幅度增加;随着管径减小,泄放口初始压力和温度下降幅度增大,泄放时间和泄放最低温度减小;管道运行压力对整体泄放过程影响较小;管道运行温度越低,泄放口初始温降越大,泄放所需时间越长.研究成果将为液氨管道紧急泄放的安全控制和应急方案的制定提供重要依据.
Keyword ：
仿真模拟 仿真模拟 影响因素 影响因素 泄放 泄放 液氨管道 液氨管道 特征参数 特征参数
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| GB/T 7714 | 尹鹏博 , 林涌滨 , 滕霖 et al. 液氨管道泄放特性及影响因素研究 [J]. | 化学工程 , 2025 , 53 (2) : 78-83 . |
| MLA | 尹鹏博 et al. "液氨管道泄放特性及影响因素研究" . | 化学工程 53 . 2 (2025) : 78-83 . |
| APA | 尹鹏博 , 林涌滨 , 滕霖 , 李卫东 , 黄鑫 , 李臻超 et al. 液氨管道泄放特性及影响因素研究 . | 化学工程 , 2025 , 53 (2) , 78-83 . |
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Wet storage of natural gas on porous materials in form of hydrate is an emerging and promising technology for natural gas storage and transportation. This work aims to systematically investigate methane storage on porous media in form of hydrate. A custom-designed high-pressure autoclave was constructed to evaluate methane adsorption under controlled conditions. Five commercially available porous media were used. In adsorption experiments, powdered activated carbon (PAC) shows the best methane uptake capability of 114.0 V/V among the five porous media. For most porous materials, wet storage dramatically improves methane uptake compared with dry adsorption. Notably, sodium dodecyl sulphate (SDS) aqueous solution proves to be more effective than pure water in accelerating hydrate formation. Methane uptake of SDS-added PAC reaches up to 139.5 V/V at 8 MPa, achieving a 22.4% improvement when compared with pure PAC. It is found that 200 mL of SDS solution and 2 degrees C of ambient temperature in the given experimental condition present the best methane uptake. Moreover, morphology of methane hydrate was directly observed and mechanism of wet storage of methane on porous media was analysed from the perspective of pore structure. Sensitivity analysis revealed that optimal methane storage on porous material requires specific water content and temperature conditions. Grain diameter of porous media presents a complex impact on the methane storage capacity and methane hydrate formation process. These findings confirm the potential of wet storage of methane in form of hydrate on porous materials and are conducive for this technology towards industrial application.
Keyword ：
Activated carbon Activated carbon Hydrate Hydrate Methane Methane Porous materials Porous materials Wet storage Wet storage
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| GB/T 7714 | Li, Weidong , Li, Shuang , Li, Lin et al. Experimental Study on Wet Storage of Methane on Porous Materials [J]. | ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING , 2025 . |
| MLA | Li, Weidong et al. "Experimental Study on Wet Storage of Methane on Porous Materials" . | ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING (2025) . |
| APA | Li, Weidong , Li, Shuang , Li, Lin , Yin, Pengbo , Li, Huiyuan , Zhang, Yufan et al. Experimental Study on Wet Storage of Methane on Porous Materials . | ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING , 2025 . |
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The sequential co-transportation of ammonia and refined oil has emerged as an efficient strategy to address the growing demand for large-scale onshore ammonia transportation. The interfacial characteristics between these fluids critically govern the evolution of the ammonia-oil mixing zone, which can directly affect the purity of ammonia and oil products. In this work, molecular dynamics simulations were employed to investigate the effect of temperature and pressure on the interfacial characteristics between ammonia and refined oil, with isooctane as the representative of refined oil. The results demonstrated that the increased temperature (280-300 K) and the decreased pressure (2-50 MPa) can disrupt the interfacial molecules, causing the ammonia-isooctane interface to become thicker and rougher. Under high temperature and low pressure, the voids at the interface of the isooctane phase can be expanded, and the ammonia-ammonia hydrogen bonds can be weakened, which can enhance the diffusion of ammonia molecules into the isooctane phase. Besides, the diffusion of ammonia molecules in ammonia phase can be promoted under high temperature and low pressure, and the diffusion coefficient of interfacial ammonia in the direction perpendicular to the interface is 1.4-1.8 times that of bulk ammonia in all directions and that of interfacial ammonia in the direction parallel to the interface. In addition, the increase in the thickness and roughness of the interface can lead to a decrease in the interfacial tension.
Keyword ：
Ammonia Ammonia Interfacial characteristics Interfacial characteristics Interfacial tension Interfacial tension Molecular dynamics simulation Molecular dynamics simulation
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| GB/T 7714 | Teng, Lin , Liu, Yi , Li, Zhenchao et al. The effect of temperature and pressure on the interfacial characteristics between ammonia and refined oil: A molecular dynamics simulation study [J]. | CHEMICAL ENGINEERING SCIENCE , 2025 , 320 . |
| MLA | Teng, Lin et al. "The effect of temperature and pressure on the interfacial characteristics between ammonia and refined oil: A molecular dynamics simulation study" . | CHEMICAL ENGINEERING SCIENCE 320 (2025) . |
| APA | Teng, Lin , Liu, Yi , Li, Zhenchao , Rao, Shihang , Huang, Xin , Li, Jiaqing et al. The effect of temperature and pressure on the interfacial characteristics between ammonia and refined oil: A molecular dynamics simulation study . | CHEMICAL ENGINEERING SCIENCE , 2025 , 320 . |
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Ammonia is a high-efficiency and safe hydrogen storage medium. Pipeline transport offers significant economic benefits for long-distance ammonia transportation. However, due to ammonia's toxicity, accidental leaks during transportation can lead to catastrophic consequences. Therefore, a comprehensive understanding of the dispersion characteristics of liquid ammonia pipeline leaks is essential for safety measures. Prior studies focused on the ammonia dispersion over flat terrain, leaving a gap in understanding the impact of diverse terrains on dispersion dynamics. This study introduces a computational fluid dynamics model to simulate ammonia dispersion over complex terrain, quantifying the influence of topographical features on dispersion consequence distances. Firstly, validation of the numerical model is conducted using a custom-built open-circuit wind tunnel test platform. Secondly, the dispersion of ammonia is analyzed over six representative terrains, highlighting the influence of complex topographies on the consequence distances. Additionally, the effects of leakage flow rate, atmospheric stability, and leakage direction on dispersion over flat terrain are examined. Finally, a comprehensive assessment of potential risks associated with liquid ammonia pipeline leaks across various terrains is provided by the synthesis and analysis. The results indicate that flat terrain simulations cannot conservatively estimate consequence distances for most terrains. Therefore, incorporating local terrain data in dispersion simulations is recommended to determine the impact area accurately.
Keyword ：
Ammonia-Hydrogen energy Ammonia-Hydrogen energy Ammonia release Ammonia release CFD modelling CFD modelling Complex terrain Complex terrain Dispersion Dispersion Liquid ammonia pipeline Liquid ammonia pipeline
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| GB/T 7714 | Teng, Lin , Wang, Kangkang , Liu, Bin et al. The consequence distance of liquid ammonia release from a pipeline in complex terrain [J]. | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION , 2025 , 196 . |
| MLA | Teng, Lin et al. "The consequence distance of liquid ammonia release from a pipeline in complex terrain" . | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 196 (2025) . |
| APA | Teng, Lin , Wang, Kangkang , Liu, Bin , Li, Weidong , Yin, Pengbo , Li, Zhenchao et al. The consequence distance of liquid ammonia release from a pipeline in complex terrain . | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION , 2025 , 196 . |
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氨作为高效的储氢载体,具有替代化石燃料能源的巨大潜力.利用成品油管道增输液氨,可充分利用管道运能,节约输送成本.液氨-成品油混合体系的相平衡问题对于管输工艺具有重要意义,此外减压过程会引起更为复杂的相变问题.针对液氨-成品油混合体系进行实验研究,初步阐述了氨/油(体积比)和含水率对液氨-成品油混合体系相平衡和减压相变的影响规律,得到了液氨-成品油混合体系的相平衡压力,揭示了液氨-成品油混合体系减压过程的相变现象.研究发现,在0～30℃,氨-油混合体系的平衡蒸气压小于两种纯组分的饱和蒸气压,而在-2～0℃大于纯液氨的饱和蒸气压,并在氨/油(体积比)为70∶30时达到最大值.同时水分的存在会降低氨-油混合体系的平衡蒸气压.氨-油无水混合体系在减压过程中会产生气泡,压力越低气泡增多,发泡行为越剧烈.含水液氨-成品油混合体系在减压过程中会产生液滴群,并慢慢变大且聚并,在减压结束后聚并形成大液滴留在底部.上述研究成果对成品油管道增输液氨技术发展和应用具有重要的理论指导意义.
Keyword ：
成品油 成品油 液氨 液氨 相变 相变 相平衡 相平衡
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| GB/T 7714 | 黄鑫 , 李逸龙 , 李卫东 et al. 液氨-成品油混合体系相平衡及减压相变规律研究 [J]. | 化工学报 , 2025 , 76 (1) : 71-80 . |
| MLA | 黄鑫 et al. "液氨-成品油混合体系相平衡及减压相变规律研究" . | 化工学报 76 . 1 (2025) : 71-80 . |
| APA | 黄鑫 , 李逸龙 , 李卫东 , 施鸿翔 , 尹鹏博 , 李臻超 et al. 液氨-成品油混合体系相平衡及减压相变规律研究 . | 化工学报 , 2025 , 76 (1) , 71-80 . |
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【目的】在“双碳”背景下，氨作为无碳富氢的能源载体，体积能量密度高、易液化存储，具有广阔的发展前景。然而复杂的储运环境增加了液氨储罐和管道腐蚀的风险，因此，研究复杂输送环境下液氨腐蚀问题是“氨-氢”能源基础设施制造和安全服役的关键。【方法】通过综述液氨腐蚀的研究进展，探讨了不同环境、不同材料的氨腐蚀行为和应力腐蚀开裂机制。同时，总结了相关氨腐蚀检测方法和具体防护措施，并展望了未来氨腐蚀研究的发展方向。【结果】氧气、碳氧化合物、硫化物及氯化物的混入对氨腐蚀有促进作用，而水杂质对氨腐蚀的影响具有两面性；应力能够引起液氨应力腐蚀开裂，不同材料的应力腐蚀敏感性从大到小依次为铜及其合金、高强钢、碳钢。【结论】基于国内对液氨腐蚀行为机理尚不明确、氨腐蚀防护措施有待完善等问题，提出以下建议：(1)采用实验研究、仿真模拟等方法，探究多杂质关联作用下不同材质的液氨腐蚀行为和内在腐蚀机理；(2)需结合液氨管道实际输送环境及材料失效特征，开展管线钢及焊材-液氨临界失效边界检验与腐蚀风险评价；(3)从液氨储罐及管道的设计、选材、制造、使用等多个角度，结合多种腐蚀防腐措施，形成完善的液氨储运系统腐蚀控制、防护及评价标准体系。（图5，表2，参77）
Keyword ：
应力腐蚀 应力腐蚀 液氨储运 液氨储运 环境腐蚀 环境腐蚀 腐蚀检测 腐蚀检测 防护技术 防护技术
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| GB/T 7714 | 李加庆 , 冯智雨 , 梁辉龙 et al. 复杂输送环境下液氨腐蚀行为及防护技术研究进展 [J]. | 油气储运 , 2024 , 43 (02) : 121-133,162 . |
| MLA | 李加庆 et al. "复杂输送环境下液氨腐蚀行为及防护技术研究进展" . | 油气储运 43 . 02 (2024) : 121-133,162 . |
| APA | 李加庆 , 冯智雨 , 梁辉龙 , 尹鹏博 , 滕霖 , 陈崇启 et al. 复杂输送环境下液氨腐蚀行为及防护技术研究进展 . | 油气储运 , 2024 , 43 (02) , 121-133,162 . |
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【目的】绿氨作为氢能的优质载体，生产工艺无碳化的优势使其成为实现碳中和目标的备选能源之一，因此绿氨终端站的布局与建设对促进氢能产业链的快速发展具有重要作用，有利于推动社会能源结构的绿色转型。【方法】概述了氨的性质：氨作为高效的储能与储氢介质，具有高能量密度、易储运、终端站无碳排放、安全性高等特点，能够显著降低储氢、运氢、用氢的成本，并可提高能源安全性。分析了氨用于储氢与储能介质具有的能量密度高、安全、长时储能等优势，调研了全球多国的氨氢项目发展与贸易情况，论述了全球快速增长的绿氨产能及需求，总结了目前氨能的贸易现状与终端站建设情况；对比目前成熟的LNG接收站相关工艺技术，详细介绍了绿氨终端站的关键工艺及技术，包括终端站绿氨存储工艺系统、液氨蒸发气处理工艺系统、终端站加注及卸载工艺系统。【结果】提出绿氨终端站的安全性问题，深入剖析了终端站液氨泄漏导致的毒性、燃烧爆炸性等危害，并给出了预防及防护措施。【结论】从化肥行业到能源领域，绿氨终端站技术的研究与发展对促进绿色能源氢能的利用具有重要意义，未来绿氨终端站的数量与规模将持续增加以适应新时代的需求，同时可以考虑改造LNG接收站等大宗能源及化工品储运设施以降低成本。（图5，表3，参59）
Keyword ：
储氢载体 储氢载体 接收工艺 接收工艺 接收终端 接收终端 液氨泄漏 液氨泄漏 碳中和 碳中和 绿氢 绿氢 绿氨 绿氨 绿色能源 绿色能源
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| GB/T 7714 | 滕霖 , 林崴 , 尹鹏博 et al. 碳中和目标下绿氨终端站储运技术发展现状及趋势 [J]. | 油气储运 , 2024 , 43 (01) : 1-11 . |
| MLA | 滕霖 et al. "碳中和目标下绿氨终端站储运技术发展现状及趋势" . | 油气储运 43 . 01 (2024) : 1-11 . |
| APA | 滕霖 , 林崴 , 尹鹏博 , 李卫东 , 黄鑫 , 李加庆 et al. 碳中和目标下绿氨终端站储运技术发展现状及趋势 . | 油气储运 , 2024 , 43 (01) , 1-11 . |
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The mass transfer characteristics during ammonia absorption into a sessile water droplet in a small controlledatmosphere wind tunnel were investigated using particle tracking velocimetry (PTV) with polystyrene microspheres. The results showed that the flow field inside the droplet transformed from Marangoni convection to Rayleigh convection in the absence of gas flow. As the gas velocity increased, the drag force-induced circulation inhibited the Marangoni convection in the initial stage of the mass transfer process and Rayleigh convection in the advanced stage. However, the suppressed Marangoni convection cells recurred at high initial ammonia concentrations. Compared with the initial ammonia concentration in the wind tunnel and droplet size, the gas velocity significantly increased the gas-phase mass transfer coefficient. Furthermore, a calculation model for ammonia absorption by a moving droplet was derived based on the Colburn analogy and the two-film theory. The gas-phase mass transfer coefficients calculated using the model coincided with the experimental results. These results will help the design of water curtains.
Keyword ：
Ammonia absorption Ammonia absorption Mass transfer coefficient Mass transfer coefficient Mathematical model Mathematical model Particle tracking velocimetry Particle tracking velocimetry Rayleigh -Be nard -Marangoni convection Rayleigh -Be nard -Marangoni convection
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| GB/T 7714 | Bai, Jinbao , Wang, Weifeng , Qiu, Guopan et al. Ammonia absorption by water droplet in a small controlled atmosphere wind tunnel [J]. | CHEMICAL ENGINEERING SCIENCE , 2024 , 292 . |
| MLA | Bai, Jinbao et al. "Ammonia absorption by water droplet in a small controlled atmosphere wind tunnel" . | CHEMICAL ENGINEERING SCIENCE 292 (2024) . |
| APA | Bai, Jinbao , Wang, Weifeng , Qiu, Guopan , Huang, Xin , Yin, Pengbo , Li, Zhenchao et al. Ammonia absorption by water droplet in a small controlled atmosphere wind tunnel . | CHEMICAL ENGINEERING SCIENCE , 2024 , 292 . |
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The evaporation characteristics of a sessile droplet under a direct current electric field were numerically investigated, and a numerical model was developed based on the arbitrary Lagrange-Euler method, combining the flow, heat transfer, vapour transport, and electrostatic equations. The simulations were validated to be in good agreement with previously reported experiments. The results demonstrate that the electric field can enhance the evaporation of the sessile droplet with different evaporative cooling numbers (initial electric field intensity E0 = 280 kV & sdot;m 1; 32.9% decrease in the evaporation time for water) by the following three methods: increasing the surface area of the droplet evaporation (2.6%) through the electric-field-induced deformation, improving the heat transfer efficiency between the droplet and substrate (droplet average temperature increases by 2.3 K) through the internal vortex, and by enhancing the shearing effect on the vapour layer (450.3% increase in vapour diffusion distance dc) through the external vortex. Additionally, the evaporation of a sessile water droplet undergoing thermocapillary convection is further enhanced under the electric field (E0 = 280 kV & sdot;m 1; 20.0% decrease in the evaporation time). As the inhomogeneous temperature distribution inside the droplet was eliminated by thermocapillary convection, the evaporation efficiency was dominated by the increased surface area of the droplet evaporation and the enhanced shearing effect on the vapour layer. These results will provide a better understanding of the electro-hydrodynamic enhanced droplet evaporation.
Keyword ：
ALE ALE Droplet deformation Droplet deformation Droplet evaporation Droplet evaporation Electric field Electric field Numerical simulation Numerical simulation
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| GB/T 7714 | Wang, Weifeng , Huang, Xin , Wang, Liangxu et al. Study on the mechanism of sessile droplets evaporation enhanced by the electric field [J]. | CHEMICAL ENGINEERING SCIENCE , 2024 , 288 . |
| MLA | Wang, Weifeng et al. "Study on the mechanism of sessile droplets evaporation enhanced by the electric field" . | CHEMICAL ENGINEERING SCIENCE 288 (2024) . |
| APA | Wang, Weifeng , Huang, Xin , Wang, Liangxu , Teng, Lin , Luo, Xiaoming , Li, Weidong et al. Study on the mechanism of sessile droplets evaporation enhanced by the electric field . | CHEMICAL ENGINEERING SCIENCE , 2024 , 288 . |
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As industrial development drives the increasing demand for steel, accurate estimation of the material's fatigue strength has become crucial. Fatigue strength, a critical mechanical property of steel, is a primary factor in component failure within engineering applications. Traditional fatigue testing is both costly and time-consuming, and fatigue failure can lead to severe consequences. Therefore, the need to develop faster and more efficient methods for predicting fatigue strength is evident. In this paper, a fatigue strength dataset was established, incorporating data on material element composition, physical properties, and mechanical performance parameters that influence fatigue strength. A machine learning regression model was then applied to facilitate rapid and efficient fatigue strength prediction of ferrous alloys. Twenty characteristic parameters, selected for their practical relevance in engineering applications, were used as input variables, with fatigue strength as the output. Multiple algorithms were trained on the dataset, and a deep learning regression model was employed for the prediction of fatigue strength. The performance of the models was evaluated using metrics such as MAE, RMSE, R2, and MAPE. The results demonstrated the superiority of the proposed models and the effectiveness of the applied methodologies.
Keyword ：
deep learning deep learning fatigue strength fatigue strength ferrous alloy ferrous alloy regression prediction regression prediction
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| GB/T 7714 | Huang, Zhikun , Yan, Jingchao , Zhang, Jianlong et al. Deep Learning-Based Fatigue Strength Prediction for Ferrous Alloy [J]. | PROCESSES , 2024 , 12 (10) . |
| MLA | Huang, Zhikun et al. "Deep Learning-Based Fatigue Strength Prediction for Ferrous Alloy" . | PROCESSES 12 . 10 (2024) . |
| APA | Huang, Zhikun , Yan, Jingchao , Zhang, Jianlong , Han, Chong , Peng, Jingfei , Cheng, Ju et al. Deep Learning-Based Fatigue Strength Prediction for Ferrous Alloy . | PROCESSES , 2024 , 12 (10) . |
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