Multi-physics Coupling Characteristics of Lead-bismuth Reactor Fuel Assembly Based on Oxidative Corrosion Behaviors [PDF]
Oxygen is the most promising non-metallic inhibitor in lead-bismuth cooled fast reactors (LFRs). The addition of oxygen to the coolant can format a protective oxide layer on the surface of structural materials, which will effectively alleviate the ...
JI Xu, CHAI Xiang, ZHANG Lefu, LIU Xiaojing
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Numerical Simulation of Solid Oxide Fuel Cell Tail Gas Catalytic Combustion Based on Three-Way Catalyst [PDF]
As a clean and efficient advanced power generation equipment, the solid oxide fuel cell (SOFC) has the structural advantages of separation of air and fuel gas, which makes it easy to enrich the CO2 in the tail gas of the fuel side.
AO Le +6 more
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Key Techniques and Applied Research on Engineering Vehicles' Noise Reduction, Energy Saving and Acoustic Comfort [PDF]
, 2016 当前，噪声已经成为衡量工程机械装备性能的一个重要指标。市场要求越来越高，相关的国家标准、国际标准日益严格。随着大功率产品的不断发展，整机噪声随之增加和热流密度不断提高，过低的冷却空气流量已满足不了发动机的热平衡要求，整机工作热流密度与逐渐降低的噪声限值的矛盾日益突出。同时，随着人们生活质量和品质追求的提高，整机声学舒适性也逐渐备受关注，对噪声的控制由最初的满足限值要求将转向声学舒适性的研究。因此，我国工程机械要发展并跻身世界市场，必须解决整机存在噪声偏大、热流密度高和声学舒适性差的共性问题 ...
张恩来
core
Research progress on the application and development of the material point method in dynamic simulation of geological hazards [PDF]
Numerical simulation is commonly used to address large deformation geological disasters such as collapses, landslides, and debris flows. Accurately and efficiently simulating these issues has always been a challenge.
Bin LI +4 more
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Coupling relationship and application of GaN based LEDs [PDF]
, 2013 GaN基LED技术的迅速发展带来了照明技术新的革命，使人们的生活进入了固体照明时代。随着LED光效的提升，要求器件具有更大的尺寸和更高的注入电流。如何在大功率的工作条件下，仍能保持并进一步提升器件的光电转换效率，对器件结构设计提出了更大的挑战，也成为了近年来的研究热点。 本论文详细介绍了影响器件性能最为重要的三个物理场因素：电场、热场以及光场。在归纳总结了正装、倒装及垂直结构LED的电流分布解析模型的基础上，提出了改善电流分布均匀性的器件设计方案。讨论了包括焦耳热、非辐射复合热 ...
杨旭
core
Current Status and Challenges in Research on Chemistry and Radionuclide Migration Behavior of High-Level Radioactive Waste Disposal [PDF]
Nuclear energy, as a low-carbon and highly efficient clean energy source, relies for its sustainable development not only on advanced reactor technologies and fuel cycle efficiency, but more critically, on the ability to safely and permanently dispose of
Bo WANG +5 more
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Gaoya dianqi, 2022 复合绝缘子运行中异常发热现象频发，其中老化与表面污秽是导致发热的主要原因。文中采用有限元多物理场仿真，结合实测获得的材料参数，分别建立了正常运行、湿热老化、局部涂污及整体涂污等4种典型工况下的复合绝缘子仿真模型，根据湿热老化以及表面污秽的不同发热特征，分别建立静电、电流场两种模型。通过电场计算分析发现：湿热老化后复合绝缘子沿面电场增大、界面电场降低；局部涂污复合绝缘子在涂污处电场稍微下降；整体涂污复合绝缘子由于沿面电流增大造成电场畸变严重。通过以电介质损耗为接口的耦合热场以及电流场 ...
刘宇 +5 more
doaj
Review of Research on Swirl Cooling Technology of Gas Turbine Blades [PDF]
ObjectivesThe effectiveness of cooling technology directly influences the performance and lifespan of gas turbine blades operating in high-temperature, and high-pressure environments.
LUAN Yong +3 more
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Numerical study of heat injection CO2 to increase CH4 production based on gas-water two-phase flow [PDF]
The technology of CO2-enhanced coalbed methane (CO2-ECBM) can reduce greenhouse gas emissions, and has the function of clean energy production and environmental protection.
Kang LIU +5 more
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He jishuMegaPower是一种设计用于偏远地区和军事基地等去中心化能源市场的热管冷却反应堆，其启堆过程涉及复杂的多物理场耦合计算。传统高分辨率仿真方法常面临较高的计算成本。本研究以MegaPower热管堆的启堆过程为研究对象，提出了一种基于Proper Orthogonal Decomposition-Radial Basis Function（POD-RBF）快速预测方法的核热力耦合模型，以实现复杂瞬态工况的高效模拟。通过构建MegaPower高分辨率1/6堆芯模型，并结合OpenMC ...
沈 书秋 +3 more
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