TBAB Semi-Clathrate Hydrate Formation and its Application in CO2Separation from CO2/CH4Mixture Gases [PDF]
, 2017 水合物法气体分离技术是一种新型的CO2分离方法，不同的分离条件对CO2气体分离的效果影响显著。四丁基溴化铵(TBAB)的添加能显著改善CO2/CH4混合气水合物的相平衡条件，促进CO2水合物的生成。作者主要研究在质量浓度为40%的TBAB水溶液体系中，压力为3.2MPa下，不同过冷度及气水比例的条件对CO2/CH4混合气水合物的生成过程及CO2的分离效果的影响规律。实验结果表明，当压力为3.2MPa时，气水比越小，CO2分离效果越好。同时 ...
吴能友, 梁德青, 臧小亚
core +1 more source
Effect of Inlet Temperature on Supersonic Liquefaction Characteristics of Natural Gas [PDF]
, 2019 To reveal the effect of inlet temperature on the supersonic liquefaction characteristics of natural-gas mixtures, a mathematical model for the supersonic condensation flow of two-component natural gas mixtures was established in this study.
Bian Jiang +4 more
core +1 more source
高气压下O2对C4F7N/N2混合气体绝缘性能和分解特性的影响
Gaoya dianqi, 2021 由于SF6的大量使用对环境产生的影响巨大,因此替代气体的研究受到了广泛关注。C4F7N混合气体具有优良的绝缘性能和环保特性,有望替代SF6作为绝缘介质应用于气体绝缘设备中。为了减少放电过程中产生的有害固体副产物,需要在C4F7N/N2混合气体中加入一定体积分数的O2。文中探究了C4F7N/N2/O2混合气体应用于高气压电气设备的潜力,利用气体绝缘试验平台对0.6 MPa下含不同体积分数氧气的C4F7N/N2/O2混合气体开展击穿试验,同时利用气相色谱质谱联用仪（GC-MS ...
丁然 +5 more
doaj
Numerical simulation of leakage and diffusion of buried pure hydrogen/hydrogen-doped natural gas pipeline [PDF]
, 2023 In order to study the diffusion characteristics of pure hydrogen/hydrogen-doped natural gas in the soil environment, a three-dimensional leakage model of the buried pure hydrogen/hydrogen-doped natural gas pipeline was established by Fluent software.
Baojin QI +3 more
core +1 more source
Experimental study on the influence of oxygen concentration on spontaneous combustion characteristics of sulfur-containing anthracite [PDF]
, 2023 In order to study the influence of different oxygen concentrations on low-temperature oxidation and spontaneous combustion of sulfur-containing coal, coal samples of No. 14 and No. 15 coal seams of Shanxi Shigang Coal Industry Co., Ltd.
Dongfang LI +4 more
core +1 more source
Study on Condensation Heat Transfer Performance of Natural Convection outside a Drop Tube Containing [PDF]
, 2019 Based on the double-film and boundary-layer theories, a mathematical model of the gas- and liquid-film thicknesses and the heat transfer coefficient of a drop tube were established, which considers the vapor-liquid interfacial thermal resistance.
Jia Yiqiong, Li Huijun
core +1 more source
Study on propagation characteristics of shock waves during the leakage of a high-pressure hydrogen/methane mixture [PDF]
The transition from traditional fossil fuels to the widespread use of hydrogen energy marks a critical phase in energy evolution. Hydrogen/methane mixtures, serving as crucial carriers of hydrogen energy, play a key role in this process.
Bin SU +9 more
core +1 more source
, 1982 本文给出钝头细长锥无粘、平衡和非平衡高超声速绕流流场的数值分析。对存在化学反应的空气,考虑了13种气体组分和22个化学反应,包括N_2、O_2和NO的振动松弛与离介过程之间的耦合反应。头部亚-跨声速区和后身高超声速区分别用直线法和有限差分法进行计算。在来流条件M_∞=20～26,Re_∞=(p_∞u_∞α)/μ_∞=1.5×10~3～5.5×10~6(α为头部半径)的参数范围内,给出了绕流流场和等离子体鞘层诸特性,如激波形状 ...
周正瑾, 马文驹, 高智
core
Preparation of Indium Tin Oxide Nanopowders and Study of their Surface Plasmon Resonances and Applications as Heat Isolation Materials [PDF]
, 2015 氧化铟锡（ITO）具有优异的高电导和高可见光透光率性质，已广泛应用于透明导电氧化物（TCO）薄膜材料。有关ITO材料的研究，大多集中于其高载流子浓度导致的高电导性质。虽然ITO纳米粉体由于其高载流子浓度，因此具有高的近红外吸收特性，作为热阻隔材料有应用潜力，但，ITO热阻隔材料的相关研究，主要是成膜工艺、膜层性能等方面；而对于关键的基础问题，即，ITO纳米粉体材料的基础问题，尤其是等离子共振（SPR）吸收特性方面的研究尚缺。等离子共振吸收的影响因素，理论上虽然给出了指导，但，针对ITO纳米粉体 ...
脱永峰
core
Primary study of the electrochemical ammonia compression technology based on the fuel cells [PDF]
, 2016 氨是目前广泛使用的良好的制冷剂，具有价格低廉、压力适中、单位制冷量大、放热系数高以及流动阻力小等优点。几乎所有的食品加工的冷却设备都有用到氨，比如冷库、冰箱和空调等。氨气压缩机是空调制冷循环系统的核心部件，作为关键核心技术的压缩机技术，它的研发和创新具有举足轻重的作用。 本研究提出了一种电化学式氨气压缩技术并进行了初步探究，将常压的氢气与氨气的混合气体用电化学的方法进行压缩，得到高压的氢气与氨气的混合气体，该压缩装置类似于质子交换膜燃料电池，核心结构为膜电极。 选用Nafion117 ...
周慧丽
core