Resource Type

Journal Article 170

Conference Videos 1

Year

2023 8

2022 13

2021 16

2020 8

2019 10

2018 11

2017 6

2016 7

2015 9

2014 9

2013 3

2012 4

2011 12

2010 10

2009 9

2008 11

2007 17

2006 1

2005 2

2004 2

open ︾

Keywords

combustion 31

CO2 capture 5

combustion characteristics 4

emission 4

temperature 4

CFD simulation 3

Combustion 3

NO 3

homogeneous 3

internal combustion engine 3

modelling 3

RP-3 jet fuel 2

catalytic combustion 2

chemical looping combustion 2

coal 2

compression 2

diesel engine 2

finite element modelling 2

gasification 2

open ︾

Search scope:

排序： Display mode:

Dynamic modelling and simulation of a post-combustion CO capture process for coal-fired power plants

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 198-209 doi: 10.1007/s11705-021-2057-7

Abstract: Solvent-based post-combustion capture technologies have great potential for CO2 mitigationModelling and simulation provide a low-cost opportunity to evaluate performances and guide flexible operationComposed by a series of partial differential equations, first-principle post-combustion capture modelsproperties and simplify the chemical and physical process, based on which a universal and hybrid post-combustion

Keywords： CO2 capture     post-combustion capture     simulation     dominant factor    

HTML PDF Collect

Understanding coupled factors that affect the modelling accuracy of typical planar compliant mechanisms

Guangbo HAO,Haiyang LI,Suzen KEMALCAN,Guimin CHEN,Jingjun YU

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2,   Pages 129-134 doi: 10.1007/s11465-016-0392-z

Abstract: equivalent modulus using nonlinear finite element analysis (FEA) to reflect coupled factors in affecting the modelling

Keywords： coupling factors     modelling accuracy     compliant mechanisms     equivalent modulus    

HTML PDF Collect

3D fracture modelling and limit state analysis of prestressed composite concrete pipes

Pengfei HE, Yang SHEN, Yun GU, Pangyong SHEN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 165-175 doi: 10.1007/s11709-018-0484-4

Abstract: In this manuscript, we study fracture of prestressed cylindrical concrete pipes. Such concrete pipes play a major role in tunneling and underground engineering. The structure is modelled fully in 3D using three-dimensional continuum elements for the concrete structure which beam elements are employed to model the reinforcement. This allows the method to capture important phenomena compared to a pure shell model of concrete. A continuous approach to fracture is chosen when concrete is subjected to compressive loading while a combined continuous-discrete fracture method is employed in tension. The model is validated through comparisons with experimental data.

Keywords： cylindrical concrete structures     limit state analysis     3D fracture modelling     prestressed composite pipes    

HTML PDF Collect

ANN-based empirical modelling of pile behaviour under static compressive loading

Abdussamad ISMAIL

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 594-608 doi: 10.1007/s11709-017-0446-2

Abstract: Artificial neural networks have been widely used over the past two decades to successfully develop empirical models for a variety of geotechnical problems. In this paper, an empirical model based on the product-unit neural network (PUNN) is developed to predict the load-deformation behaviour of piles based SPT values of the supporting soil. Other parameters used as inputs include particle grading, pile geometry, method of installation as well as the elastic modulus of the pile material. The model is trained using full-scale pile loading tests data retrieved from FHWA deep foundations database. From the results obtained, it is observed that the proposed model gives a better simulation of pile load-deformation curves compared to the Fleming’s hyperbolic model and t-z approach.

Keywords： piles in compression     load-deformation behaviour     product-unit neural network    

HTML PDF Collect

Kinetic-compartmental modelling of potassium-containing cellulose feedstock gasification

Attila Egedy, Lívia Gyurik, Tamás Varga, Jun Zou, Norbert Miskolczi, Haiping Yang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 708-717 doi: 10.1007/s11705-018-1767-y

Abstract:

Biomass is of growing interest as a secondary energy source and can be converted to fuels with higher energy density especially by pyrolysis or gasification. Understanding the mechanism and the kinetics of biomass pyrolysis (thermal decomposition) and gasification (conversion of organic material to gases) could be the key to the design of industrial devices capable of processing vast amounts of biomass feedstock. In our work real product components obtained in pyrolysis were took into consideration as well as char and oil as lumped components, and the kinetic constants for a biomass model compound (cellulose) pyrolysis and gasification were identified based on a proposed simplified reaction mechanism within a compartment model structure. A laboratory scale reactor was used for the physical experiments containing consecutive fast pyrolysis and gasification stages using alkali metal (K) containing feedstock, which has a significant effect on the cellulose pyrolysis and gasification. The detailed model was implemented in MATLAB/Simulink environment, and the unknown kinetic parameters were identified based on experimental data. The model was validated based on measurement data, and a good agreement was found. Based on the validated first principle model the optimal parameters were determined as 0.15 mL/min steam flow rate, and 4% K content.

Keywords： biomass pyrolysis     kinetic parameter identification     compartment modelling     optimisation    

HTML PDF Collect

Joint slip investigation based on finite element modelling verified by experimental results on wind turbine

Saleh YAGHOOBI, Ahmad SHOOSHTARI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 341-351 doi: 10.1007/s11709-017-0393-y

Abstract:

Slippage corresponds to the relative displacement of a bolted joint subjected to shear loads since the construction clearance between the bolt shank and the bolthole at assembly can cause joint slip. Deflections of towers with joint slippage effects is up to 1.9 times greater than the displacements obtained by linear analytical methods. In this study, 8 different types of joints are modelled and studied in the finite element program, and the results are verified by the experimental results which have been done in the laboratory. Moreover, several types of joints have been modelled and studied and load-deformation curves have also been presented. Finally, joint slip data for different types of angles, bolt diameter and bolt arrangements are generated. Thereupon, damping ratios (z) for different types of connections are reported. The study can be useful to help in designing of wind turbine towers with a higher level of accuracy and safety.

Keywords： Joint slip     cyclic loading     Finite element modelling     Experimental joint behavior     damping ratios (   

HTML PDF Collect

Development of a simplified n-heptane/methane model for high-pressure direct-injection natural gas marine engines

Jingrui LI, Haifeng LIU, Xinlei LIU, Ying YE, Hu WANG, Xinyan WANG, Hua ZHAO, Mingfa YAO

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 405-420 doi: 10.1007/s11708-021-0718-3

Abstract: (HPDI) of natu-ral gas is one of the most promising solutions for future ship engines, in which the combustionHowever, the employment of detailed chemical models for the multi-dimensional combustion simulation isand heat release rate profiles for a HPDI natural gas marine engine, the highest error of predicted combustionmodels developed provide a high-efficient and dependable method to simulate the characteristics of combustion

Keywords： high-pressure direct-injection     natural gas     chemical kinetics     combustion modelling     marine engine    

HTML PDF Collect

Combustion characteristics and kinetics of bio-oil

Ruixia ZHANG, Zhaoping ZHONG, Yaji HUANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 119-124 doi: 10.1007/s11705-009-0068-x

Abstract: The combustion characteristics of bio-oils derived from rice husk and corn were studied by thermogravimetrydifferential thermal analysis (DTA) curves of bio-oils in air and nitrogen atmosphere, we analyzed the combustioncharacteristics of different kinds of bio-oils in different atmospheres and worked out the combustionThe thermogravimetry indicated that the combustion process of bio-oil was divided into three stages.At the same time, the combustion process can be described by different order reaction models, and with

Keywords： bio-oil     combustion characteristics     combustion kinetics    

HTML PDF Collect

Numerical simulation of laminar premixed combustion in a porous burner

ZHAO Pinghui, CHEN Yiliang, LIU Minghou, DING Min, ZHANG Genxuan

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 233-238 doi: 10.1007/s11708-007-0032-8

Abstract: Premixed combustion in porous media differs substantially from combustion in free space.interphase heat transfer between a gas mixture and a porous medium becomes dominant in the premixed combustionIn this paper, the premixed combustion of CH

Keywords： interphase     mixture     dominant     Premixed combustion     premixed combustion    

HTML PDF Collect

Entropy production analysis of swirling diffusion combustion processes

Deodat MAKHANLALL, Linhua LIU,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 326-332 doi: 10.1007/s11708-009-0058-1

Abstract: A critical factor in the design of combustion systems for optimum fuel economy and emission performanceobjective of this study is to map these irreversibilities in terms of entropy production for methane combustionThe numerical solution of the combustion process is conducted with the help of a Fluent 6.1.22 computerradiative heat transfer, which is an important source of entropy production, cannot be omitted for combustionIntroducing swirling air into the combustion system and operations with the appropriate Boltzmann number

Keywords： entropy-based design     radiation transfer     swirl     magnussen combustion-model    

HTML PDF Collect

Numerical modelling of reinforced concrete flexural members strengthened using textile reinforced mortars

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 649-668 doi: 10.1007/s11709-023-0919-4

Abstract: Externally bonded (EB) and near-surface mounted (NSM) bonding are two widely adopted and researched strengthening methods for reinforced-concrete structures. EB composite substrates are easy to reach and repair using appropriate surface treatments, whereas NSM techniques can be easily applied to the soffit and concrete member sides. The EB bonded fiber-reinforced polymer (FRP) technique has a significant drawback: combustibility, which calls for external protective agents, and textile reinforced mortar (TRM), a class of EB composites that is non-combustible and provides a similar functionality to any EB FRP-strengthened substrate. This study employs a finite element analysis technique to investigate the failing failure of carbon textile reinforced mortar (CTRM)-strengthened reinforced concrete beams. The principal objective of this numerical study was to develop a finite element model and validate a set of experimental data in existing literature. A set of seven beams was modelled and calibrated to obtain concrete damage plasticity (CDP) parameters. The predicted results, which were in the form of load versus deflection, load versus rebar strain, tensile damage, and compressive damage patterns, were in good agreement with the experimental data. Moreover, a parametric study was conducted to verify the applicability of the numerical model and study various influencing factors such as the concrete strength, internal reinforcement, textile roving spacing, and externally-applied load span. The ultimate load and deflection of the predicted finite element results had a coefficient of variation (COV) of 6.02% and 5.7%, respectively. A strain-based numerical comparison with known methods was then conducted to investigate the debonding mechanism. The developed finite element model can be applied and tailored further to explore similar TRM-strengthened beams undergoing debonding, and the preventive measures can be sought to avoid premature debonding.

Keywords： fiber reinforced polymer     textile reinforced mortar     finite element analysis     concrete damage plasticity     calibration and validation     parametric study    

HTML PDF Collect

Study on combustion characteristics of blended coals

LI Yonghua, WANG Chunbo, CHEN Hongwei

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 96-100 doi: 10.1007/s11708-007-0010-1

Abstract: So it is of great necessity to investigate the combustion of blended coals.

Keywords： combustion     capacity     variety     blended     burnout    

HTML PDF Collect

Recent progress in electric-field assisted combustion: a brief review

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 883-899 doi: 10.1007/s11708-021-0770-z

Abstract: The control of combustion is a hot and classical topic.Among the combustion technologies, electric-field assisted combustion is an advanced techno-logy thatIn the last two decades, tremendous efforts have been made to understand electric-field assisted combustionNew observations have been reported based on different combustion systems and improved diagnostics.These findings significantly facilitate the application of electric-field assisted combustion.

Keywords： electric field     combustion     flame stabilization     emission reduction     flame propagation    

HTML PDF Collect

Catalytic combustion of volatile organic compounds using perovskite oxides catalysts—a review

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1649-1676 doi: 10.1007/s11705-023-2324-x

Abstract: Catalytic combustion is the most popular technology used for the removal of VOCs as it can be adaptedchallenges and the prospects regarding the design of perovskite oxides catalysts for the catalytic combustion

Keywords： perovskite oxides     volatile organic compounds     catalytic combustion     reaction mechanism    

HTML PDF Collect

Impact of oxygen enriched combustion on the performance of a single cylinder diesel engine

K. RAJKUMAR, P. GOVINDARAJAN

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 398-403 doi: 10.1007/s11708-011-0157-7

Abstract: cylinder diesel engine with a data acquisition system was used to study the effects of oxygen enriched combustionAssessed high combustion temperature from the oxygen enriched combustion leads to high combustion efficiency

Keywords： oxygen enriched combustion     exhaust gas temperature     brake power (BP)     specific fuel consumption (SFC)    

HTML PDF Collect

Title Author Date Type Operation

Dynamic modelling and simulation of a post-combustion CO capture process for coal-fired power plants

Journal Article

Understanding coupled factors that affect the modelling accuracy of typical planar compliant mechanisms

Guangbo HAO,Haiyang LI,Suzen KEMALCAN,Guimin CHEN,Jingjun YU

Journal Article

3D fracture modelling and limit state analysis of prestressed composite concrete pipes

Pengfei HE, Yang SHEN, Yun GU, Pangyong SHEN

Journal Article

ANN-based empirical modelling of pile behaviour under static compressive loading

Abdussamad ISMAIL

Journal Article

Kinetic-compartmental modelling of potassium-containing cellulose feedstock gasification

Attila Egedy, Lívia Gyurik, Tamás Varga, Jun Zou, Norbert Miskolczi, Haiping Yang

Journal Article

Joint slip investigation based on finite element modelling verified by experimental results on wind turbine

Saleh YAGHOOBI, Ahmad SHOOSHTARI

Journal Article

Development of a simplified n-heptane/methane model for high-pressure direct-injection natural gas marine engines

Jingrui LI, Haifeng LIU, Xinlei LIU, Ying YE, Hu WANG, Xinyan WANG, Hua ZHAO, Mingfa YAO

Journal Article

Combustion characteristics and kinetics of bio-oil

Ruixia ZHANG, Zhaoping ZHONG, Yaji HUANG

Journal Article

Numerical simulation of laminar premixed combustion in a porous burner

ZHAO Pinghui, CHEN Yiliang, LIU Minghou, DING Min, ZHANG Genxuan

Journal Article

Entropy production analysis of swirling diffusion combustion processes

Deodat MAKHANLALL, Linhua LIU,

Journal Article

Numerical modelling of reinforced concrete flexural members strengthened using textile reinforced mortars

Journal Article

Study on combustion characteristics of blended coals

LI Yonghua, WANG Chunbo, CHEN Hongwei

Journal Article

Recent progress in electric-field assisted combustion: a brief review

Journal Article

Catalytic combustion of volatile organic compounds using perovskite oxides catalysts—a review

Journal Article

Impact of oxygen enriched combustion on the performance of a single cylinder diesel engine

K. RAJKUMAR, P. GOVINDARAJAN

Journal Article