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Thermodynamic and economic analyses of a coal and biomass indirect coupling power generation system

Buqing YE, Rui ZHANG, Jin CAO, Bingquan SHI, Xun ZHOU, Dong LIU

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 590-606 doi: 10.1007/s11708-020-0809-6

Abstract: The coal and biomass coupling power generation technology is considered as a promising technology forIn this paper, a novel coal and biomass indirect coupling system is proposed based on the technologyThe process of the direct and the indirect coupling system is simulated.worse, but the economic performance is better than that of the direct coupling system.The environmental impact analysis indicates that the indirect coupling system can inhibit the propagation

Keywords： biomass     indirect coupling system     process simulation     thermodynamic analysis     economic analysis    

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Coupling analysis of passenger and train flows for a large-scale urban rail transit system

Frontiers of Engineering Management 2023, Volume 10, Issue 2,   Pages 250-261 doi: 10.1007/s42524-021-0180-2

Abstract: Coupling analysis of passenger and train flows is an important approach in evaluating and optimizingThis study proposes a passenger–train interaction simulation approach to determine the coupling relationship

Keywords： urban rail transit     coupling analysis     passenger–train interaction     large-scale simulation    

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Numerical analysis of vehicle-bridge coupling vibration concerning nonlinear stress-dependent damping

Pengfei LI; Jinquan ZHANG; Shengqi MEI; Zhenhua DONG; Yan MAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2,   Pages 239-249 doi: 10.1007/s11709-021-0804-y

Abstract: This study investigated the application of stress-dependent damping associated with vehicle-bridge coupling

Keywords： vehicle-bridge vibration system     dynamic analysis     stress-dependent damping     energy dissipation    

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Statistical Energy Analysis for Complicated Coupled System and Its Application in Engineering

Sheng Meiping

Strategic Study of CAE 2002, Volume 4, Issue 6,   Pages 77-84

Abstract: p>The new SEA method developed in this dissertation is the integration of virtues from the mobility analysis(2) Non-conservative coupling coefficient is introduced to describe the influence of(3) Indirect coupling coefficient is introduced to research the property of vibrationanalysis of complicated coupled system.The analysis results agree well with experiment results.

Keywords： power flow     statistical energy analysis(SEA)     mobility     coupling    

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Analysis of resonant coupling coil configurations of EV wireless charging system: a simulation study

M. LU, A. JUNUSSOV, M. BAGHERI

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 152-165 doi: 10.1007/s11708-019-0615-1

Abstract: Nowadays, internal combustion engine vehicles are considered as one of the major contributors to air pollution. To make transportation more environmentally friendly, plug-in electric vehicles (PEVs) have been proposed. However, with an increase in the number of PEVs, the drawbacks associated with the cost and size, as well as charging cables of batteries have arisen. To address these challenges, a novel technology named wireless charging system has been recently recommended. This technology rapidly evolves and becomes very attractive for charging operations of electric vehicles. Currently, wireless charging systems offer highly efficient power transfer over the distances ranging from several millimeters to several hundred millimeters. This paper is focused on analyzing electromagnetically coupled resonant wireless technique used for the charging of EVs. The resonant wireless charging system for EVs is modeled, simulated, and then examined by changing different key parameters to evaluate how transfer distance, load, and coil’s geometry, precisely number of coil’s turns, coil’s shape, and inter-turn distance, influence the efficiency of the charging process. The simulation results are analyzed and critical dimensions are discussed. It is revealed that a proper choice of the dimensions, inter-turn distance, and transfer distance of the coil can result in a significant improvement in charging efficiency. Furthermore, the influence of the transfer distance, frequency, load, as well as the number of the turns of the coil on the performance of wireless charging system is the main focus of this paper.

Keywords： electromagnetically coupled resonator     near-field power transfer     wireless power transfer (WPT)    

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Vibration analysis of blade-disc coupled structure of compressor

WANG Chunjie, SONG Shunguang, ZONG Xiao

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 302-305 doi: 10.1007/s11708-008-0064-8

Abstract: established, a finite element model for calculating the vibration characteristics during blade-disc couplingwas built by taking into consideration the coupling action of contact stress between the blade and theThe vibration characteristics of the blade-disc coupling structure was calculated and analyzed usingcycle analysis method with the aid of ANSYS software.

Keywords： blade-disc coupling     assembly     experiment     vibration     blade-disc structure    

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Microdamage study of granite under thermomechanical coupling based on the particle flow code

Frontiers of Structural and Civil Engineering   Pages 1413-1427 doi: 10.1007/s11709-023-0953-2

Abstract: The thermomechanical coupling of rocks refers to the interaction between the mechanical and thermodynamicThe study of this coupling interaction is essential for understanding the mechanical and thermodynamicA series of numerical thermomechanical coupling tests are then conducted to calibrate the micro-parameters

Keywords： thermomechanical coupling effect     granite     improved linear parallel bond model     thermal property     particle    

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Analysis of Medium- and Long-term Coupling Effect of Energy- and Water-Saving Policies in Urban and Rural

Liu Gengyuan, Hu Junmei, Yang Zhifeng

Strategic Study of CAE 2019, Volume 21, Issue 5,   Pages 120-129 doi: 10.15302/J-SSCAE-2019.05.007

Abstract:

An energy-water coupling model is established in this paper based onthe energy- and water-saving effects of different
policies in Beijing in the future and their couplingeffects, and sensitivity analysis of the results is also conducted.industry, and the traditional manufacturing industry are correlated, as they are critical energy-water coupling

Keywords： urban and rural areas in Beijing     energy and water-saving     policy coupling analysis    

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Simulation of steel beam under ceiling jet based on a wind–fire–structure coupling model

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 78-98 doi: 10.1007/s11709-022-0936-8

Abstract: Instead of applying the concept of adiabatic surface temperature (AST) to achieve fluid–structure coupling

Keywords： CFD–FEM coupling     steel beam     wind     ceiling jet     numerical heat transfer    

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Thermodynamic analysis of ethanol synthesis from hydration of ethylene coupled with a sequential reaction

Jie Gao, Zhikai Li, Mei Dong, Weibin Fan, Jianguo Wang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 847-856 doi: 10.1007/s11705-019-1848-6

Abstract: To improve ethylene conversion, coupling hydration of ethylene with a potential ethanol consumption reactionconversion to 22.5%; in particular, ethylene can be actually completely converted to ethyl acetate by coupling

Keywords： ethylene     ethanol     thermodynamics     coupling    

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IPMC gripper static analysis based on finite element analysis

Hanmin PENG, Yao HUI, Qingjun DING, Huafeng LI, Chunsheng ZHAO,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 204-211 doi: 10.1007/s11465-010-0005-1

Abstract: Further, these electromechanical coupling relationships can be simulated by using the piezoelectric analysisThe results provide detailed numerical solutions and appropriate finite element analysis methodologiesbeneficial for further research on the optimization design, forecast analysis, and control field.

Keywords： ionic polymer-metal composite (IPMC)     artificial muscles     actuator     flexible gripper     finite element analysis     electromechanical coupling    

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catalysts derived from zeolitic imidazolate framework@MXene composites for efficient oxidative self-coupling

Frontiers of Chemical Science and Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11705-023-2378-9

Abstract: The catalytic efficiency of the catalyst is tested for the self-coupling of 4-methoxybenzylamine to produce

Keywords： MXene     sacrificial template     oxidative self-coupling     Co nanoparticles     imine    

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Effect of alkyl nitrite decomposition on catalytic performance of CO coupling reaction over supported

Zhenhua LI, Weihan WANG, Dongxue YIN, Jing LV, Xinbin MA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 410-414 doi: 10.1007/s11705-012-1213-5

Abstract: The syntheses of dimethyl oxalate (DMO) and diethyl oxalate (DEO) by CO coupling reaction in gaseous

Keywords： palladium     CO coupling     dialkyl oxalate     alkyl nitrite     decomposition    

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Enhancing the aromatic selectivity of cyclohexane aromatization by CO2 coupling

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1801-1808 doi: 10.1007/s11705-023-2325-9

Abstract: Improving the aromatic selectivity in the alkane aromatization process is of great importance for its practical utilization but challenge to make because the high H/C ratio of alkanes would lead to a serious hydrogen transfer process and a large amount of light alkanes. Herein, CO2 is introduced into the cyclohexane conversion process on the HZSM-5 zeolite, which can improve the aromatic selectivity. By optimizing the reaction conditions, an improved aromatic (benzene, toluene, xylene, and C9+) selectivity of 48.2% can be obtained at the conditions of 2.7 MPa (CO2), 450 °C, and 1.7 h−1, which is better than that without CO2 (aromatic selectivity = 43.2%). In situ transmission Fourier transform infrared spectroscopy spectra illustrate that many oxygenated chemical intermediates (e.g., carboxylic acid, anhydride, unsaturated aldehydes/ketones or ketene) would be formed during the cyclohexane conversion process in the presence of CO2. 13C isotope labeling experimental results demonstrate that CO2 can enter into the aromatics through the formation of oxygenated chemical intermediates and thereby improve the aromatic selectivity. This study may open a green, economic, and promising way to improve the aromatic selectivity for alkane aromatization process.

Keywords： aromatics     carbon dioxide     aromatization     coupling reaction     ZSM-5 zeolite    

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Analysis of the dynamic stress of planar flexible-links parallel robots

DU Zhaocai, YU Yueqing, YANG Jianxin

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 152-158 doi: 10.1007/s11465-007-0025-7

Abstract: This paper presents a method for the dynamic stress analysis of planar parallel robots with flexibleelastic deformations and elastic displacements of the flexible links is investigated, considering the couplingelement software SAMCEF, the numerical simulation results show the good coherence and advantages of the analysisThe dynamic stress analysis is demonstrated to have a significant impact on the analysis, design and

Keywords： numerical simulation     Due     coupling     software SAMCEF     flexibility    

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Title Author Date Type Operation

Thermodynamic and economic analyses of a coal and biomass indirect coupling power generation system

Buqing YE, Rui ZHANG, Jin CAO, Bingquan SHI, Xun ZHOU, Dong LIU

Journal Article

Coupling analysis of passenger and train flows for a large-scale urban rail transit system

Journal Article

Numerical analysis of vehicle-bridge coupling vibration concerning nonlinear stress-dependent damping

Pengfei LI; Jinquan ZHANG; Shengqi MEI; Zhenhua DONG; Yan MAO

Journal Article

Statistical Energy Analysis for Complicated Coupled System and Its Application in Engineering

Sheng Meiping

Journal Article

Analysis of resonant coupling coil configurations of EV wireless charging system: a simulation study

M. LU, A. JUNUSSOV, M. BAGHERI

Journal Article

Vibration analysis of blade-disc coupled structure of compressor

WANG Chunjie, SONG Shunguang, ZONG Xiao

Journal Article

Microdamage study of granite under thermomechanical coupling based on the particle flow code

Journal Article

Analysis of Medium- and Long-term Coupling Effect of Energy- and Water-Saving Policies in Urban and Rural

Liu Gengyuan, Hu Junmei, Yang Zhifeng

Journal Article

Simulation of steel beam under ceiling jet based on a wind–fire–structure coupling model

Journal Article

Thermodynamic analysis of ethanol synthesis from hydration of ethylene coupled with a sequential reaction

Jie Gao, Zhikai Li, Mei Dong, Weibin Fan, Jianguo Wang

Journal Article

IPMC gripper static analysis based on finite element analysis

Hanmin PENG, Yao HUI, Qingjun DING, Huafeng LI, Chunsheng ZHAO,

Journal Article

catalysts derived from zeolitic imidazolate framework@MXene composites for efficient oxidative self-coupling

Journal Article

Effect of alkyl nitrite decomposition on catalytic performance of CO coupling reaction over supported

Zhenhua LI, Weihan WANG, Dongxue YIN, Jing LV, Xinbin MA

Journal Article

Enhancing the aromatic selectivity of cyclohexane aromatization by CO2 coupling

Journal Article

Analysis of the dynamic stress of planar flexible-links parallel robots

DU Zhaocai, YU Yueqing, YANG Jianxin

Journal Article