Technical progress of construction and safe operation of underground gas storage under complex geological conditions [PDF]
, 2023 Due to the high dependency of China on imported natural gas, continuously enhancing the gas storage capacity in peak shaving and stable supply is an inevitable choice to assure natural gas security in China.
Chun LI +7 more
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, 2022 Lithium-ion batteries are widely used as energy storage and dynamic power, while the capacity life of battery is one of the key factors affecting its further application.
Chen, Haofeng +3 more
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Invalidation analysis of Ag@Pt core-shell nanoparticle catalysts in the electrocatalytic process [PDF]
, 2016 Ag@Pt core-shell nanoparticles(Ag@Pt NPs) composed of an Ag nanoparticle core and a Pt shell were prepared by the seed-mediated growth method and self-assembly technology.
CHEN Ke +4 more
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Quality control and safety management of oil and gas pipelines during its whole life cycle [PDF]
, 2023 The development history and technical change of oil and gas pipeline quality management in China were reviewed focusing on pipeline quality control in the whole life cycle, on the basis of quality improvement of oil and gas pipelines in the construction ...
Changliang JIANG
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Aprediction model for the very high cycle fatigue life for inclusion-FGA (fine granular area) -fisheye induced fatigue failure [PDF]
, 2017 A prediction model for the very high cycle fatigue life for inclusion-fine granular area (FGA) -fisheye-induced failure was studied in this work. Combined with the experimental results of Cr-Ni-W alloy steel, a local crack initiation life model (LCIL ...
DENG Hai-long +3 more
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Research and Design of Multi-Channel Temperature Control System for High Power LEDs Online Accelerated Aging [PDF]
, 2016 半导体照明技术伴随时代的进步，应用愈发广泛，大功率LED照明领域更是逐步走向普及。但实际应用中，LED器件和封装的缺陷及工作时发热极大限制了其性能和实际寿命，可靠性问题日渐显露。为此LED寿命加速测试尤为重要，以实现寿命预测，失效机理分析，使得LED可靠性提升。常用的高温老化测试传统上使用高温试验箱，此方法存在诸多缺点：参数检测不连续、温升慢、体积大、功耗高。本文针对性地研制了一套轻便的LED在线寿命加速多路温控系统（以下简称温控系统）。主要工作内容与研究成果如下： 1.研制了温控系统的硬件部分 ...
周骁炀
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Probability Safety Analysis of Simplified CPR1000 Main Feedwater System and AP1000 Passive Containment Cooling System [PDF]
, 2016 随着数字化仪控系统在核电厂中得到越来越多的应用，其可靠性对核电安全也越来越重要。传统概率安全分析方法已在模拟仪控系统中得到广泛应用，但在分析具有新设备和新技术的数字化仪控系统时还存在不足。动态概率安全分析方法中，Markov/CCMT是较为符合数字化仪控特性的概率安全分析方法之一。 本文主要是应用故障树、Markov和Markov/CCMT三种方法对简化CPR1000主给水系统和简化AP1000非能动安全壳冷却系统分别进行安全分析，其中简化CPR1000主给水系统在设置故障时偏重于数字类故障 ...
侯恩通
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Structural strength failure mechanism of X52 natural gas pipeline with corrosion defects under hydrogen-blended environment [PDF]
ObjectiveThis study aims to explore the structural strength deterioration mechanism of pipelines with corrosion defects in hydrogen-blended environments.MethodsBased on the experimental data, an analysis is made of the load bearing performance of X52 ...
Deqiang WANG +4 more
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The Research on the Performance and Preparation of High Temperature Lanthanum Doped Molybdenum Wire for Automotive Lamps [PDF]
, 2016 作为汽车灯用导杆，钼与玻璃封接是一项很特殊的应用，被用于不同封接方式的钼导杆，对其质量与性能有不同的要求。 钼导杆表面质量、裂纹及高温性能是玻璃封接过程需要控制的三个关键参数。例如，钼导杆与石英玻璃封接要承受将近1700℃的封接温度，这就要求钼导杆具有良好的高温性能；当它与硬质玻璃封接时要钼导杆贯通灯体，这就要求材料表面不能存在缺陷及裂纹，以达到密封完好、不漏气。 本文对汽车灯用高温钼镧丝的制备工艺及性能进行研究，并建立了工艺控制规范和产品标准。本研究工作和取得的成果主要包含以下几个方面： 首先 ...
张丁旺
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Failure analysis of four tube in power station boiler [PDF]
, 2015 火力发电厂是我国供电主体，约占总体发电量的70%。大型火电厂的安全事关电网的安全运行，而火电厂中的锅炉运行的可靠性是影响发电厂运行可靠性的首要因素，尤其是锅炉四小管的损坏泄漏对机组的安全运行影响最大，是火力发电厂的常见事故，一般占机组故障的60%-70%。锅炉经常由于四小管设计、制造、安装、运行、修理改造、管理等环节的问题以及长期在高温、高压、腐蚀、冲刷等恶劣条件下运行等原因而造成爆管并导致停炉。只有掌握四小管各种类型爆管的失效机理，才能有的放矢开展监督检验工作，寻找有效的管理和技术防治对策 ...
左仁红
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