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Pre-chamber turbulent jet ignition of methane/air mixtures with multiple orifices in a large bore constant

Xiang LI, Wenzheng ZHANG, Zhong HUANG, Dehao JU, Li HUANG, Mingzhi FENG, Xingcai LU, Zhen HUANG

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 483-493 doi: 10.1007/s11708-019-0631-1

Abstract: A combustion enhancement technique called pre-chamber turbulent jet ignition (TJI) can permit combustionTo investigate the effect of air-fuel equivalence ratio and pre-mixed pressure on pre-chamber TJI ofvolume, experimental tests and computational simulations were implemented to study the discharge of hot turbulentinitial pressures and air-fuel equivalence ratios were considered to analyze the characteristics of TJIThe asymmetry of the turbulent jet actuated from six different orifices were found due to the asymmetric

Keywords： marine engine     natural gas     methane     turbulent jet ignition (TJI)     pre-chamber    

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An experimental study on spray auto-ignition of RP-3 jet fuel and its surrogates

Yaozong DUAN, Wang LIU, Zhen HUANG, Dong HAN

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 396-404 doi: 10.1007/s11708-020-0715-y

Abstract: In the latter case, fuel spray auto-ignition behavior is an important index for engine operation reliabilityThe spray auto-ignition characteristics of RP-3 jet fuel and its three surrogates, the 70% mol -decaneExperimental results indicate that Surrogate 1 overestimates the auto-ignition propensity of RP-3 jetfuel, whereas Surrogates 2 and 3 show quite similar auto-ignition propensity with RP-3 jet fuel.Therefore, to capture the spray auto-ignition behaviors, DCN is the most important parameter to match

Keywords： RP-3 jet fuel     surrogate     spray auto-ignition     constant volume combustion chamber    

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Influence of nozzle height to width ratio on ignition and NO

Liutao SUN, Yonghong YAN, Rui SUN, Zhengkang PENG, Chunli XING, Jiangquan WU

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 431-448 doi: 10.1007/s11708-021-0726-3

Abstract: To improve the ignition behavior and to reduce the high NO emissions of blended pulverized fuels (PFThe combustion tests indicate that the flame stability, ignition performance, and fuel burnout ratioThe smaller / delayed ignition and caused the flame to concentrate excessively on the axis of the furnaceNO emissions at the outlet of the primary zone decreased from 447 to 354 mg/m (O = 6%), and the ignitionreduces NO emissions and improves the combustion efficiency of SC blends possessing an appropriate jet

Keywords： rectangular jet burner     nozzle height to width ratio     ignition characteristics     pyrolyzed semicoke (SC)    

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Experimental study of humid air reverse diffusion combustion in a turbulent flow field

GE Bing, ZANG Shusheng, GU Xin

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 428-434 doi: 10.1007/s11708-007-0062-6

Abstract: Experiments were performed to investigate the differences between the propane/air turbulent diffusionreactive flows past bluff-body and the propane/humid air turbulent diffusion reactive flows in the same

Keywords： propane/humid     propane/air turbulent     bluff-body     turbulent diffusion    

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Stability of an annular viscous liquid jet in compressible gases with different properties inside andoutside of the jet

Chunji YAN, Maozhao XIE,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 198-204 doi: 10.1007/s11708-009-0054-5

Abstract: A spatial linear instability analysis is conducted on an annular viscous liquid jet injected into compressiblegases and a three-dimensional model of the jet is developed.account differences between the velocities, densities of the gases inside and outside of the liquid jetcomputations reveal some basic characteristics in the breakup and atomization process of the liquid jetThe Mach number plays a destabilizing role and the inner Mach number has a greater effect on the jet

Keywords： liquid jet     dominant wave number     compressibility     instability    

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An experimental study on ignition of single coal particles at low oxygen concentrations

Wantao YANG, Yang ZHANG, Lilin HU, Junfu LYU, Hai ZHANG

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 38-45 doi: 10.1007/s11708-020-0692-1

Abstract: An experimental study on the ignition of single coal particles at low oxygen concentrations ( <21%) wasThe ignition processes were recorded by a high-speed camera at different values and furnace temperaturesIn addition, is less sensitive to while the ignition temperature is more sensitive to at a lowObservations of the position of flame front evolution illustrate that the ignition of a coal particlemay change from a homogeneous mode to a heterogeneous or combined ignition mode as decreases.

Keywords： coal particles     low oxygen concentration     ignition     ignition temperature     ignition modes    

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Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 432-439 doi: 10.1007/s11708-009-0050-9

Abstract: mechanism of a high-temperature, high-pressure, three-dimensional-space, transient turbulent, non-homogeneousThe result shows that the ignition in the engine can be divided into low-temperature ignition and high-temperatureLow-temperature ignition reaction, whose ignition reaction is c5h9o1-4=ch3cho+c3h5-a, follows the oxidationmechanism, while high-temperature ignition reaction, whose ignition reaction is c2h3o1-2=ch3co, followsNo matter which ignition it is in, the chemical reaction that restrains the ignition reaction from lasting

Keywords： compression-ignition engine     ignition mechanism     elementary reaction     n-heptane    

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Large eddy simulation of turbulent buffet forces in flow induced vibration

XI Zhide, CHENG Bingde, LI Pengzhou

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 524-527 doi: 10.1007/s11708-008-0099-x

Abstract: The pressure pulse filter and Smagorinsky sub-grid stress model of the Large Eddy Simulation (LES) are introduced. The fluid field in the annular plenum between the pressure vessel and the core barrel of the1:5 model in the second phase of Qinshan Nuclear Power Plant is simulated, and the distribution of the total pressure in the space and time domains is obtained. The results show that the Power Spectrum Density (PSD) of LES from the calculation and the test are in the same quantity order. Thus, the pressure of LES can be a load to stimulate the barrel vibration.

Keywords： Spectrum Density     Smagorinsky sub-grid     vibration     calculation     Qinshan Nuclear    

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Combustion and emissions of RP-3 jet fuel and diesel fuel in a single-cylinder diesel engine

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 664-677 doi: 10.1007/s11708-021-0787-3

Abstract: The combustion characteristics and emission behaviors of RP-3 jet fuel were studied and compared to commercialdiesel fuel in a single-cylinder compression ignition (CI) engine.angle (CA) after top dead center (ATDC)) were adjusted to evaluate the engine performances of RP-3 jetIn comparison to diesel fuel, RP-3 jet fuel shows a retarded heat release and lagged combustion phaseAs a result, RP-3 jet fuel features a longer ignition delay (ID) time, a shorter combustion duration

Keywords： RP-3 jet fuel     diesel     engine     combustion     emissions    

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Numerical simulation of three-dimensional turbulent flow in multistage axial compressor blade row

JIANG Jian, LIU Bo, WANG Yangang, NAN Xiangyi

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 320-325 doi: 10.1007/s11708-008-0041-2

Abstract: Numerical simulation of three-dimensional turbulent flow in a multistage axial compressor blade row isA high resolution, third-order ENN scheme is adopted to catch the shockwave and simulate the turbulent

Keywords： simulation     compressor     multistage     third-order     three-dimensional turbulent    

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Fabrication of micro/nano-structures by electrohydrodynamic jet technique

Dazhi WANG, Xiaojun ZHAO, Yigao LIN, Tongqun REN, Junsheng LIANG, Chong LIU, Liding WANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 477-489 doi: 10.1007/s11465-017-0461-y

Abstract:

Electrohydrodynamic jet (E-Jet) is an approach to the fabrication of micro/nano-structures by theIn this process, the liquid is subjected to electrical and mechanical forces to form a liquid jet, whichThe major advantage of the E-Jet technique is that the sizes of the jet formed can be at the nanoscaleThe E-Jet technique, which mainly includes E-Jet deposition and E-Jet printing, has a wide range of applicationsThis study mainly reviews the E-Jet deposition/printing fundamentals, fabrication process, and applications

Keywords： electrohydrodynamic jet deposition     electrohydrodynamic jet printing     micro/nano-structures     film    

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Influence of different oil feed rate on bituminous coal ignition in a full-scale tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Xiang ZHANG, Zhichao CHEN

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 406-412 doi: 10.1007/s11708-013-0266-6

Abstract: To reduce oil consumption during firing-up and partial-load operation, a tiny-oil ignition burner hasThe ignition burner is identical to that normally used in an 800 MWe utility boiler.

Keywords： ignition     coal     burner     boiler     oil flow rate    

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Effects of rotor and stator geometry on dissolution process and power consumption in jet-flow high shear

Lin Yang, Wenpeng Li, Junheng Guo, Wei Li, Baoguo Wang, Minqing Zhang, Jinli Zhang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 384-398 doi: 10.1007/s11705-020-1928-7

Abstract: The jet-flow high shear mixer (JF-HSM) is a new type of intensified equipment with special configurationsResults indicate that the turbulent power consumption of the JF-HSM is affected by the change in rotor

Keywords： jet-flow high shear mixer     solid particle dissolution     power consumption characteristics     CFD Simulation    

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Numerical simulation of combustion characteristics at different coal concentrations in bituminous coal ignitionin a tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Yiquan XIE, Lingyan ZENG

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 255-262 doi: 10.1007/s11708-013-0255-9

Abstract: With the objective of producing a full-scale tiny-oil ignition burner, identical to the burner used inMWe utility boiler, numerical simulations were performed using Fluent 6.3.26 to study the progress of ignitionflowed to the burner nozzle, the high-temperature region expanded, ensuring a successful pulverized-coal ignition

Keywords： numerical simulation     tiny-oil ignition burner     pulverized coal     temperature field    

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Ignition of Diesel by Heated Surface

Li Yuanlong,Lu Shouxiang,Fan Weicheng

Strategic Study of CAE 2004, Volume 6, Issue 11,   Pages 63-65

Abstract:

The ignition of leaked fuel of the diesel engine is studied experimentally.The critical ignition temperature is calculated statistically.The difference between the ignition temperature and auto - ignition temperature of diesel is much lessThe ignition mode is also much different from its counterpart.

Keywords： hot surface     ignition test     boiling    

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Title Author Date Type Operation

Pre-chamber turbulent jet ignition of methane/air mixtures with multiple orifices in a large bore constant

Xiang LI, Wenzheng ZHANG, Zhong HUANG, Dehao JU, Li HUANG, Mingzhi FENG, Xingcai LU, Zhen HUANG

Journal Article

An experimental study on spray auto-ignition of RP-3 jet fuel and its surrogates

Yaozong DUAN, Wang LIU, Zhen HUANG, Dong HAN

Journal Article

Influence of nozzle height to width ratio on ignition and NO

Liutao SUN, Yonghong YAN, Rui SUN, Zhengkang PENG, Chunli XING, Jiangquan WU

Journal Article

Experimental study of humid air reverse diffusion combustion in a turbulent flow field

GE Bing, ZANG Shusheng, GU Xin

Journal Article

Stability of an annular viscous liquid jet in compressible gases with different properties inside andoutside of the jet

Chunji YAN, Maozhao XIE,

Journal Article

An experimental study on ignition of single coal particles at low oxygen concentrations

Wantao YANG, Yang ZHANG, Lilin HU, Junfu LYU, Hai ZHANG

Journal Article

Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Journal Article

Large eddy simulation of turbulent buffet forces in flow induced vibration

XI Zhide, CHENG Bingde, LI Pengzhou

Journal Article

Combustion and emissions of RP-3 jet fuel and diesel fuel in a single-cylinder diesel engine

Journal Article

Numerical simulation of three-dimensional turbulent flow in multistage axial compressor blade row

JIANG Jian, LIU Bo, WANG Yangang, NAN Xiangyi

Journal Article

Fabrication of micro/nano-structures by electrohydrodynamic jet technique

Dazhi WANG, Xiaojun ZHAO, Yigao LIN, Tongqun REN, Junsheng LIANG, Chong LIU, Liding WANG

Journal Article

Influence of different oil feed rate on bituminous coal ignition in a full-scale tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Xiang ZHANG, Zhichao CHEN

Journal Article

Effects of rotor and stator geometry on dissolution process and power consumption in jet-flow high shear

Lin Yang, Wenpeng Li, Junheng Guo, Wei Li, Baoguo Wang, Minqing Zhang, Jinli Zhang

Journal Article

Numerical simulation of combustion characteristics at different coal concentrations in bituminous coal ignitionin a tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Yiquan XIE, Lingyan ZENG

Journal Article

Ignition of Diesel by Heated Surface

Li Yuanlong,Lu Shouxiang,Fan Weicheng

Journal Article