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Experimental study on film combustion formed by spirally fluted horizontal tube

MEI Ning, ZHANG Bin, ZHAO Jian, ZHANG Ming

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 54-58 doi: 10.1007/s11708-008-0023-4

Abstract: This fuel film combustion could be applied in a micro-combustion system even without a fuel pump.established and experimental comparisons were made between the prototype and a transferred cup atomizer micro-combustorThe theoretical and experimental results show that film combustion has a higher combustion efficiency

Keywords: homogeneous     transferred     evaporation     micro-combustion     efficiency    

Application of micro-genetic algorithm for calibration of kinetic parameters in HCCI engine combustion

HUANG Haozhong, SU Wanhua

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 86-92 doi: 10.1007/s11708-008-0003-8

Abstract: The micro-genetic algorithm (?kinetic model (40 species and 62 reactions) for the homogeneous charge compression ignition (HCCI) combustionThe seven kinetic parameters of the calibrated model are determined using a combination of the Micro-Genetic

Keywords: homogeneous     different     combustion     autoignition     compression    

Self-sustained catalytic combustion of CO enhanced by micro fluidized bed: stability operation, fluidization

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1709-x

Abstract:

● Catalytic combustion in fluidized bed realizes efficient heat and

Keywords: Self-sustained catalytic combustion     Carbon monoxide     Cu1–xCexOy     Fluidized    

Transient process of methane-oxygen diffusion flame-street establishment in a microchannel

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 988-999 doi: 10.1007/s11708-021-0755-y

Abstract: “Flame-street” is an interesting diffusion flame behavior in which a series of flame-segments is separately distributed along the mixing layer in a narrow channel. This experimental phenomenon was experimentally and numerically investigated with the focus on the steady-state, thermo-chemical flame structures in previous literature. In the present paper, the dynamic formation process of a methane-oxygen diffusion flame-street structure was simulated with a reacting flow solver developed based on the open-source framework OpenFOAM. By imposing a certain amount of ignition-energy near the channel outlet, a reaction-kernel was formed and bifurcated. Subsequently, three separate flames were consecutively generated from this kernel and propagated within the channel. The whole process was completed within 15 ms and all the discrete flames were eventually in a steady-state. Interestingly, different propagation features were observed for the three flame segments: The leading flame experienced a flame shape/type change from a tribrachial structure in its fast-propagating phase to a long, trailing diffusion tail after being anchored to the inlet. The successive flame had a much lower propagation speed, keeping its two wing-like (fuel-lean premixed and fuel-rich premixed) structure while moving toward its stabilization location, which was approximately in the middle of the channel. The last flame, after the ignition source was turned-off, was immediately convected a bit downstream, and eventually featured a similar two-branch-like structure as the second one. Moreover, chemical insights for the premixed and diffusion branches of the leading flame were also provided with the change of significance of some key elementary reactions focused on, in order to attain a detailed profiling of the flame-type transition. This paper is a first-ever one discussing the transient formation of flame-streets in literature and is believed to be useful for obtaining a comprehensive understanding of this unique flame characteristics from a dynamic point of view.

Keywords: micro-combustion     flame-street     diffusion flame     mixing layer     flame propagation speed    

Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 539-545 doi: 10.1007/s11465-017-0427-0

Abstract:

This article summarizes our studies on micro flow sensors fabricated on a flexible polyimide circuitThe micro flow sensor has merits of flexibility, structural simplicity, easy integrability with circuitsIn our study, we install the fabricated micro flow sensors on micro aerial vehicles (MAVs) to detect

Keywords: micro flow sensor     flexible sensor     surface flow sensing     aerodynamic parameter     micro aerial vehicle (MAV    

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    

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    

Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 146-149 doi: 10.1007/s11465-013-0260-z

Abstract:

To predict more precisely the frequency of force-balanced micro accelerometer with different biasBased on the theoretical results, micro accelerometer is fabricated and tested to study the influences

Keywords: Micro-Electro-Mechanical Systems (MEMS)     micro accelerometer     force-balanced micro accelerometer     frequency    

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    

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    

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    

Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 396-401 doi: 10.1007/s11708-009-0049-2

Abstract: Numerical simulations of flowing and boiling in micro channels are presented, including the modelingThe simulated results also show the details of 3-dimensional heat transfer and the flow in micro channels, which are helpful to the investigation of the mechanism of two-phase heat transfer and flow in micro

Keywords: volume-of-fluid (VOF)     micro channel     nucleate boiling     bubble dynamics     simulation    

Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 433-438 doi: 10.1007/s11465-007-0074-y

Abstract: This paper develops a 30 mm × 30 mm × 50 mm spherical micro actuator driven by piezoelectric ceramicwith a micro-gripper based on the sample spherical micro actuator, and the experimental research onthe micro assembly is conducted between a micro shaft of 180 μm and a micro spindle sleeve of 200 μm.the metal sphere and the friction block of the micro driving unit are analyzed.micro operation and assembly for micro electro mechanical systems (MEMS) or other microelements in micro

Keywords: spherical     micro-gripper     friction coefficient     dynamic     frequency    

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    

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)    

Title Author Date Type Operation

Experimental study on film combustion formed by spirally fluted horizontal tube

MEI Ning, ZHANG Bin, ZHAO Jian, ZHANG Ming

Journal Article

Application of micro-genetic algorithm for calibration of kinetic parameters in HCCI engine combustion

HUANG Haozhong, SU Wanhua

Journal Article

Self-sustained catalytic combustion of CO enhanced by micro fluidized bed: stability operation, fluidization

Journal Article

Transient process of methane-oxygen diffusion flame-street establishment in a microchannel

Journal Article

Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

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

Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Journal Article

Entropy production analysis of swirling diffusion combustion processes

Deodat MAKHANLALL, Linhua LIU,

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

Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Journal Article

Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

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