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Typical off-design analytical performances of internal combustion engine cogeneration

Xiaohong HE, Ruixian CAI

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 184-192 doi: 10.1007/s11708-009-0007-z

Abstract: In combination with analytical solution of single-pressure heat recovery steam generator (HRSG) and influenceThe approach temperature difference Δ , relative steam production and superheated steam temperatureIt is worth emphasizing that Δ is likely to be negative in low load condition with high design steamHence, approach temperature difference, relative steam production and superheated steam temperature decrease

Keywords： internal combustion engine (ICE)     cogeneration     heat recovery steam generator (HRSG)     off-design     superheatedsteam     saturated steam     ambient pressure    

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Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 194-202 doi: 10.1007/s11709-015-0292-z

Abstract: Considering the interactions between an embedded foundation and saturated soil, the torsional vibrationsof a cylindrical foundation embedded in a saturated poroelastic medium are analyzed in this paper.

Keywords： embedded foundation     saturated soil     rigid foundation     elastic foundation     torsional vibration    

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Thermo-mechanical simulation of frost heave in saturated soils

Frontiers of Structural and Civil Engineering   Pages 1400-1412 doi: 10.1007/s11709-023-0990-x

Abstract: This paper presents the use of a coupled thermo-mechanical approach to simulate frost heave in saturated

Keywords： frost heave     multiphysics analysis     thermo-mechanical approach     saturated soils    

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Seismic behavior of cantilever wall embedded in dry and saturated sand

Sanku KONAI, Aniruddha SENGUPTA, Kousik DEB

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 690-705 doi: 10.1007/s11709-020-0615-6

Abstract: In this paper, the behavior of a small scale model embedded cantilever retaining wall in dry and saturatedThe variation of the pore water pressures within the sand is also observed in the cases of saturatedwall due to seismic loading is below 1% of the total height of the wall in dry sand, but in case of saturated

Keywords： embedded cantilever wall     shake table test     FLAC2D     seismic loading     saturated and dry sand    

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Experimental study of two saturated natural soils and their saturated remoulded soils under three consolidated

Mingjing JIANG, Haijun HU, Jianbing PENG, Serge LEROUEIL

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 225-238 doi: 10.1007/s11709-011-0108-8

Abstract: In this paper, an experimental investigation is conducted to study the mechanical behavior of saturatednatural loess, saturated natural filling in ground fissure and their corresponding saturated remoulded

Keywords： stress paths     static liquefaction     natural soil     remoulded soil     loess     structure     total strength indices     excess pore pressure    

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Uncertainty assessment in hydro-mechanical-coupled analysis of saturated porous medium applying fuzzy

Farhoud KALATEH, Farideh HOSSEINEJAD

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 387-410 doi: 10.1007/s11709-019-0601-z

Abstract: of the present study was to develop a fuzzy finite element method, for uncertainty quantification of saturated

Keywords： fuzzy finite element method     saturated soil     hydro-mechanical coupled equations     coupled analysis     uncertainty    

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Modeling analysis on solar steam generator employed in multi-effect distillation (MED) system

Zhaorui ZHAO, Bao YANG, Ziwen XING

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 193-203 doi: 10.1007/s11708-019-0608-0

Abstract: Specifically, the effects of operating parameters, such as the motive steam temperature, seawater flowproduced have been investigated in the MED desalination system combined with the bilayer wood solar steamIt is found that, under a given operating condition, there exists an optimum steam generation temperatureThis parametric simulation study will help the design of efficient bilayer wood solar steam generator

Keywords： solar energy     steam generating     multi-effect desalination    

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Shaking table test of composite foundation reinforcement of saturated silty soil for high speed railway

JIANG Guanlu, LIU Xianfeng, ZHANG Jianwen, ZHAO Ruyi

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 353-360 doi: 10.1007/s11709-007-0047-6

Abstract: column-net composite foundation and cement fly-ash gravel (CFG) column-net composite foundation on the saturated

Keywords： large-scale     CFG column-net     amplifying     displacement     subgrade    

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Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 415-426 doi: 10.1007/s11705-018-1725-8

Abstract: Catalytic steam gasification of fine coal char particles was carried out using a self-made laboratory

Keywords： coal char     catalytic steam gasification     pressure     kinetics     diffusion    

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Frost heave and freezing processes of saturated rock with an open crack under different freezing conditions

Zhitao LV, Caichu XIA, Yuesong WANG, Ziliang LIN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 947-960 doi: 10.1007/s11709-020-0638-z

Abstract: Frost heave experiments on saturated sandstone and tuff with an open crack are conducted under uniformTo illustrate the reasons for this phenomenon, a numerical model on the freezing processes of saturated

Keywords： frost heave     rock with crack     freezing process     freezing condition     frost heave mode    

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Solutions for a completely saturated porous elastic solid with impeded boundaries

CHEN Yunmin, LING Daosheng, ZHU Bin, CHENG Zehai

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 322-328 doi: 10.1007/s11709-007-0042-y

Abstract: Analytical solutions are presented for the consolidation of a semi-infinite stratum and a finite soil layer with an impeding layer located on the surface subjected to a vertical point loading. The Laplace transform and the Hankel transform are used with respect to time and the radial coordinate, respectively. Solutions of other distributed loadings, including the circular loading, can be easily obtained by integrating those of the point loading. The consolidation degree, excess pore water pressure, vertical total stress, and the shear stress of the consolidating layer are analyzed in this study. The consolidation rate decreases with the increase in the thickness of the impeding layer. Stresses of the consolidating layer vary during the consolidation due to the coupling of the excess pore water dissipation and the soil skeleton deformation. Further, the Mandel-Cryer effect is also analyzed in this study.

Keywords： coupling     vertical     pressure     excess     distributed    

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Coupled diffusion of chloride and other ions in saturated concrete

Nattapong DAMRONGWIRIYANUPAP, Linyuan LI, Yunping XI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 267-277 doi: 10.1007/s11709-011-0112-z

Abstract: Corrosion of reinforcing steel due to chloride ions is one of the severe deterioration problems in long-term performance of reinforced concrete structures. The deterioration process is frequently found in marine concrete structures, highway pavements, and bridges exposed to deicing salts. The diffusion of chloride ions is associated and strongly affected by other ions in the pore solution in concrete. In this paper, chloride penetration into concrete structures was mathematically characterized by the Nernst-Planck equation which considered not only diffusion mechanism of the chloride ions but also ionic interaction among other ions coming from externally applied deicers and within the Portland cement paste. Electroneutrality was used to determine the electrostatic potential induced by the ionic interaction. The material models of chloride binding capacity and chloride diffusion coefficient were incorporated in the governing equations. The governing equations were solved by using finite element method. A numerical example was used to illustrate the coupling effect of multi-ionic interactions and the effect of influential parameters. The numerical results obtained from the present model agreed very well with available test data.

Keywords： diffusion     chloride     concrete     Nernst-Planck equation     durability    

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finite element method for calculation and analysis to the elasto-plastic dynamic response of fluid-saturated

LI Liang, DU Xiuli, LI Liyun, ZHAO Chenggang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 436-442 doi: 10.1007/s11709-007-0059-2

Abstract: In order to describe the elasto-plastic dynamic response of fluid-saturated porous media, the incrementalelasto-plastic wave propagation equations of fluid-saturated porous media are developed by the fundamentaltheory of continuum mechanics and appointing to the characteristic of fluid-saturated porous media.element method is developed for calculation and analysis of the elasto-plastic dynamic response of fluid-saturated

Keywords： discretization     computational     calculation     integral     requirement    

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Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 321-335 doi: 10.1007/s11708-021-0741-4

Abstract: In place of the traditional single heat source (extraction steam), the extraction steam from the turbine

Keywords： biomass-fired cogeneration     district heat production system     absorption heat pump     extraction steam    

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High-efficiency inspecting method for mobile robots based on task planning for heat transfer tubes in a steam

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0741-z

Abstract: Many heat transfer tubes are distributed on the tube plates of a steam generator that requires periodic

Keywords： steam generator transfer tubes     mobile robot     dexterous structure     task planning     efficient inspection    

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Title Author Date Type Operation

Typical off-design analytical performances of internal combustion engine cogeneration

Xiaohong HE, Ruixian CAI

Journal Article

Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Journal Article

Thermo-mechanical simulation of frost heave in saturated soils

Journal Article

Seismic behavior of cantilever wall embedded in dry and saturated sand

Sanku KONAI, Aniruddha SENGUPTA, Kousik DEB

Journal Article

Experimental study of two saturated natural soils and their saturated remoulded soils under three consolidated

Mingjing JIANG, Haijun HU, Jianbing PENG, Serge LEROUEIL

Journal Article

Uncertainty assessment in hydro-mechanical-coupled analysis of saturated porous medium applying fuzzy

Farhoud KALATEH, Farideh HOSSEINEJAD

Journal Article

Modeling analysis on solar steam generator employed in multi-effect distillation (MED) system

Zhaorui ZHAO, Bao YANG, Ziwen XING

Journal Article

Shaking table test of composite foundation reinforcement of saturated silty soil for high speed railway

JIANG Guanlu, LIU Xianfeng, ZHANG Jianwen, ZHAO Ruyi

Journal Article

Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Journal Article

Frost heave and freezing processes of saturated rock with an open crack under different freezing conditions

Zhitao LV, Caichu XIA, Yuesong WANG, Ziliang LIN

Journal Article

Solutions for a completely saturated porous elastic solid with impeded boundaries

CHEN Yunmin, LING Daosheng, ZHU Bin, CHENG Zehai

Journal Article

Coupled diffusion of chloride and other ions in saturated concrete

Nattapong DAMRONGWIRIYANUPAP, Linyuan LI, Yunping XI

Journal Article

finite element method for calculation and analysis to the elasto-plastic dynamic response of fluid-saturated

LI Liang, DU Xiuli, LI Liyun, ZHAO Chenggang

Journal Article

Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam

Journal Article

High-efficiency inspecting method for mobile robots based on task planning for heat transfer tubes in a steam

Journal Article