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中国化学会第三届中国能源材料化学研讨会

作者： Jianan Wang Guorui Yang Shanshan Yi Ling Wang Silan Wang Wei Yan Shujiang Ding Department of Environmental Science and Engineering State Key Laboratory of Multiphase Flow in Power EngineeringXi'an Jiaotong University Department of Applied Chemistry School of ScienceState Key Laboratory for Electrical Insulation and Power EquipmentXi'an Jiaotong Univrsity School of Electronic and Information Engineering Xi'an Jiaotong University

Lithium–sulfur（Li-S） batteries are a promising candidate to couple renewable energy sources for green transportation and large-scale energy storage because of their relatively low cost and high theoretical specific capacity(1,675 mA h g).However,a major problem preventing the practical applications of Li-S batteries is the rapid capacity fading,predominantly due to the "shuttle effect" of polysulphides（LiPSs）.

关键词： A High-Performance VS2-Modifed Separator for Lithium Sulfur Batteries

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A new era of precise liquid regulation:Quasi-liquid

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Green Energy & Environment 2017年第4期2卷 329-330,326页

作者： Suojiang Zhang Yanlei Wang Hongyan He Feng Huo Yumiao Lu Xiaochun Zhang Kun Dong Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences

Common in nature and artificial systems,quasi-liquid represents a special phase under specific conditions,where precise regulations can be conducted to accommodate various applications,such as material,biology,life an... 详细信息

关键词： A new era of precise liquid regulation:Quasi-liquid

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Kinetics of hydrogen abstraction and addition reactions of 3-hexene by H radical

Kinetics of hydrogen abstraction and addition reactions of 3...

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11th Asia-Pacific Conference on Combustion, ASPACC 2017

作者： Yang, Feiyu Sun, Wuchuan Pan, Youshun Deng, Fuquan Jiang, Xue Zhang, Yingjia Huang, Zuohua State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University Xianning West Road Xi’anShaanxi710049 China

Rate coefficients of H-atom abstraction and addition reactions of 3-hexene by the hydroxyl radical (H) were determined using canonical variational transition-state theory, with potential energy surface evaluated at the CCSD/CBS//BHandHLYP/6311G (d, p) level and quantum mechanical effect corrected by the multi-dimensional small-curvature tunneling method. Results reveal that accounting for approximate 70% of the overall H-atom abstractions occur in the allylic site via both direct and indirect channels. The indirect channel containing two Van der Waals pre-reactive complexes exhibits two times higher rate coefficient relative to the direct one. The H-addition reaction also contains two Van der Waals complexes, and its submerged barrier results in a negative temperature coefficient behavior at low temperatures. In contrast, the H-addition pathway dominates only at the temperatures below 590 K whereas the H-atom abstraction reactions dominate overwhelmingly at the temperature over 590 K. All of the rate coefficients calculated with an uncertainty of a factor of 5 were estimated. Analyses on the potential energy surface and minimum reaction path were also performed in this study. © 2018 Combustion Institute. All Rights Reserved.

关键词： Addition reactions

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Experimental study of n-decane decomposition with microsecond pulsed discharge plasma

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Plasma Science and Technology 2017年第12期19卷 89-95页

作者：宋飞龙金迪贾敏魏雯雯宋慧敏吴云 Science and Technology on Plasma Dynamics Laboratory Air Force Engineering UniversityXi'an 710038People's Republic of China State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong UniversityXi'an 710049People's Republic of China Science and Technology on Plasma Dynamics Laboratory Xi'an Jiaotong UniversityXi'an 710049People's Republic of China

A highly-integrated experimental system for the plasma decomposition of fuels was *** were conducted in a flow reactor at atmospheric pressure and confirmed that n-decane could be cracked by large-gap dielectric barrier discharge under the excitation of a microsecond-pulse power supply. Alkanes and olefins with a C atom number that is smaller than10 as well as hydrogen were found in the cracked products of n-decane（n-C10 H22）. The combination of preheating and plasma decomposition had strong selectivity for olefins. Under strong discharge conditions, small molecule olefins were found in the products. Moreover, there was a general tendency that small molecule olefins gradually accounted for higher percentage of products at higher temperature and discharge frequency.

关键词： plasma DBD decomposition n-decane

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flow CONTROL EFFECT OF MICRO-CYLINDERS WITH DIFFERENT VIBRATION REGULATIONS ON HORIZONTAL AXIS WIND TURBINE

FLOW CONTROL EFFECT OF MICRO-CYLINDERS WITH DIFFERENT VIBRAT...

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第三届中国国际透平机械学术会议

作者： Ying Wang Gao-hui Li Sheng Shen Dian-gui Huang School of Energy and Power Engineering University of Shanghai for Science and TechnologyShanghai200093 Shanghai key laboratory of multiphase flow and heat transfer of power engineering Shanghai200093

According to the flow separation of NREL Phase VI horizontal axis wind turbine blade,a new flow control method installing vibration micro-cylinder in front of the blade leading edge is *** to the actual flow condition,the fluid solid coupling simulation is conducted where two kinds of micro-cylinder vibration modes are set up,and the aerodynamic performance is numerically *** influence of vibration modes and vibration amplitude and frequency on the aerodynamic performance of horizontal axis wind turbine is *** results suggest that in the case of different stall conditions,by setting appropriate vibration micro-cylinder can effectively suppress the flow separation on wind turbine blades than installing static ***,the vibration micro-cylinder also shows obvious suppressing effect on large flow *** U∞≥13m/s,the vibration direction and vibration amplitude plays a leading role in the improvement of aerodynamic performance,and a micro-cylinder with high vibration frequency can suppress surface flow separation more quickly to achieve the optimum aerodynamic *** on calculation,when U∞=10~25m/s,by setting micro-cylinders which are close to the blade surface with suitable vibration rules,the wind energy coefficient can show increase of 86.2%,188.4%,214.1%,109.8%和120.2%,respectively,compared with those of adding static micro-cylinder or without adding micro-cylinder.

关键词： Horizontal axis wind turbine vibration micro-cylinders flow control Aerodynamic performance

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Microstructure and properties of CrAl/CrAlBN-coated TiCN-based cermet under different plasma pretreatments

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Ceramics International 2025年

作者： Cheng chen Honglin Li Qingfang Yun Jianfeng Zhao Taijun He Dong Yang Han Chen Hengning Hu Wei Li Qingxian Li Wei Wang Qianbing You Zhixing Guo Junbo Liu Ji Xiong School of Mechanical Engineering Sichuan University Chengdu 610065 PR China Chengdu Tool Research Institute Co. Ltd Chengdu 610065 PR China Dongfang Turbine Co. Ltd Deyang 618000 PR China AVIC Chengdu Aircraft Industrial (Group) CO. LTD. 610092 PR China Sichuan SUC Flow Control Equipment Co. Ltd Chengdu 610207 PR China Department of R&D Pengxi Heye high-tech Co. Ltd. Suining 629000 PR China State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment Deyang 618000 PR China Sichuan Railway College Chengdu 611732 PR China

Abstrate The sequence of plasma etching and nitriding critically determines nitrided layer thickness and final coating performance. To validate the dual functionality of plasma etching and nitriding, and identify optimal plasma pretreatments for CrAl/CrAlBN-coated TiCN cermet, four plasma pretreatments, including argon (Ar) ion etching (AE), Ar + nitrogen (N 2 ) mixture etching (ME), and their combinations (AE + ME and ME + AE), were applied to TiCN-based cermet substrates, followed by coating deposition. Techniques such as XRD, EPMA, EBSD and TEM were employed to analyze the structure and properties of the substrates and coatings. The results indicate that a nitrogen-rich layer of 1.3 μm thickness forms after ME, while the AE + ME treatment increases the layer thickness to 1.6 μm. The removal of the nitrogen-rich layer increased the lattice mismatch between the substrate and coating from 3.7 % (ME) to 4.4 % (ME + AE), accompanied by a transition in the coating's preferred orientation from (111) to (200). Finally, the optimal etching process is ME. The ME-coated sample achieved optimal hardness (38.4 ± 0.6 GPa), H/E ratio (0.082), and cohesive strength (134 ± 3 N), with superior wear resistance (COF: 0.45 ± 0.029; wear rate: 8.2 ± 0.37 × 10 −6 mm 3 N −1 m −1 ).

关键词：

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Flame front evolution and self-acceleration of hydrogen spherically expending flames 11

Flame front evolution and self-acceleration of hydrogen sphe...

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11th Asia-Pacific Conference on Combustion, ASPACC 2017

作者： Cai, Xiao Wang, Jinhua Zhao, Haoran Huang, Zuohua State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University NO.28 Xianning West Road Xi’an710049 China

An experimental study on flame front evolution and self-acceleration of hydrogen spherically expending flames was conducted on a constant volume combustion chamber over a wide range of Lewis number at elevated pressures. Flame morphology, onset of flame acceleration and flame self-similar acceleration were analyzed. The results shows that the critical radius for onset of flame acceleration increases with the increase in effective Lewis number and the decrease in initial pressure. And the critical Peclet number increases nonlinearly with the increasing Markstein length. Thus, the onset of flame acceleration is controlled by the couple effects of hydrodynamic and diffusional-thermal instabilities. Furthermore, the self-similar acceleration exponent increases with the decrease in the effective Lewis number (or Markstein number) and almost keeps constant with initial pressure. It is concluded that the self-similar acceleration exponent is mainly affected by diffusional-thermal instability. © 2018 Combustion Institute. All Rights Reserved.

关键词： Acceleration

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Solar Hydrocarbons: Single-Step, Atmospheric-Pressure Synthesis of C2−C4Alkanes and Alkenes from CO2

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Angewandte Chemie 2023年第27期135卷

作者： Rui Song Zhao Li Jiuli Guo Paul N. Duchesne Chenyue Qiu Chengliang Mao Jia Jia Sanli Tang Yang-Fan Xu Wenzhe Zhou Lu Wang Wei Sun Xiaoliang Yan Liejin Guo Dengwei Jing Geoffrey A. Ozin International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an Shaanxi 710049 China Solar Fuels Group Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada Contribution: Conceptualization (equal) Data curation (lead) Formal analysis (lead) Investigation (lead) Methodology (lead) Writing - original draft (equal) Contribution: Data curation (supporting) Formal analysis (equal) Writing - original draft (supporting) School of Chemistry and Chemical Engineering Anyang Normal University Anyang Henan 455000 P. R. China Contribution: Data curation (supporting) Formal analysis (supporting) Methodology (equal) Software (supporting) Writing - original draft (supporting) Contribution: Data curation (supporting) Software (lead) Department of Materials Science and Engineering University of Toronto Toronto Ontario M5S 3E4 Canada Contribution: Data curation (supporting) Contribution: Conceptualization (supporting) Contribution: Formal analysis (supporting) Contribution: Methodology (supporting) State Key Laboratory of Silicon Materials and School of Materials Science and Engineering Zhejiang University Hangzhou Zhejiang 310058 China Contribution: Project administration (supporting) Contribution: Conceptualization (lead) Formal analysis (lead) Funding acquisition (equal) Project administration (equal) Supervision (equal) Writing - original draft (lead) Contribution: Conceptualization (lead) Funding acquisition (equal) Project administration (equal) Writing - original draft (lead)

Cobalt ferrite (CoFe 2 O 4 ) spinel has been found to produce C 2 −C 4 hydrocarbons in a single-step, ambient-pressure, photocatalytic hydrogenation of CO 2 with a rate of 1.1 mmol g −1 h −1 , selectivity of 29.8 % and conversion yield of 12.9 %. On stream the CoFe 2 O 4 reconstructs to a CoFe−CoFe 2 O 4 alloy-spinel nanocomposite which facilitates the light-assisted transformation of CO 2 to CO and hydrogenation of the CO to C 2 −C 4 hydrocarbons. Promising results obtained from a laboratory demonstrator bode well for the development of a solar hydrocarbon pilot refinery.

关键词： C2−C4 Hydrocarbons CO2 Hydrogenation Cobalt Ferrite Photocatalysis

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Numerical Analysis of flow Instability in the Water Wall of a Supercritical CFB Boiler with Annular Furnace

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Journal of Thermal Science 2016年第4期25卷 372-379页

作者： XIE Beibei YANG Dong XIE Haiyan NIE Xin LIU Wanyu State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

In order to expand the study on flow instability of supercritical circulating fluidized bed(CFB) boiler,a new numerical computational model considering the heat storage of the tube wall metal was presented in this *** lumped parameter method was proposed for wall temperature calculation and the single channel model was adopted for the analysis of flow *** on the time-domain method,a new numerical computational program suitable for the analysis of flow instability in the water wall of supercritical CFB boiler with annular furnace was *** verify the code,calculation results were respectively compared with data of commercial *** to the comparisons,the new code was proved to be reasonable and accurate for practical engineering application in analysis of flow *** on the new program,the flow instability of supercritical CFB boiler with annular furnace was simulated by time-domain *** 1.2 times heat load disturbance was applied on the loop,results showed that the inlet flow rate,outlet flow rate and wall temperature fluctuated with time eventually remained at constant values,suggesting that the hydrodynamic flow was *** results also showed that in the case of considering the heat storage,the flow in the water wall is easier to return to stable state than without considering heat storage.

关键词： supercritical CFB with annular furnace heat storage flow instability wall temperature numerical analysis

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Utilization of gold-bearing and iron-rich pyrite cinder via a chlorination–volatilization process

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International Journal of Minerals,Metallurgy and Materials 2017年第11期24卷 1241-1250页

作者： Jian Ding Pei-wei Han Cui-cui Lü Peng Qian Shu-feng Ye Yun-fa Chen State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China

The chlorination-volatilization process has been adopted to make full use of gold-bearing and iron-rich pyrite cinder. However, problems of low recovery rate, pulverization of pellets, and ring formation have been encountered during the industrialization of this process. The effects of various parameters on the volatilization rates of valuable metals and on the compressive strength of roasted pellets were investigated in this paper. The parameters include the CaCl_2 dosage, heating temperature, and holding time. The results show that heating temperature is the most important parameter for the recovery of target metals. More CaCl_2 was needed for the recovery of zinc than for the recovery of gold, silver, and lead. CaCl_2 started to react with sulfides/SO_2/SiO_2 at temperatures below the melting point of CaCl_2 to generate Cl_2/HCl. Gaseous CaCl_2 was formed at higher temperatures and could react with any of the components. The compressive strength of roasted CaCl_2-bearing pellets first decreased slowly with increasing temperature at temperatures lower than 873 K, which could result in the pulverization of pellets during heating. Their compressive strength increased dramatically with increasing temperature at temperatures greater than 1273 K. Certain quantities of CaCl_2 and Fe(Ⅱ) could improve the compressive strength of the roasted pellets; however, the addition of excessive CaCl_2 decreased the compressive strength of pellets.

关键词： pyrite cinder gold chlorination oxidized pellets compressive strength

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