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Numerical simulation of combustion characteristics at different coal concentrations in bituminous coalignition in 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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Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 463-467 doi: 10.1007/s11708-007-0068-0

Abstract: The effects of homogeneous charge compression ignition (HCCI) engine compression ratio on its combustioncharacteristics were studied experimentally on a modified TY1100 single cylinder engine fueled with

Keywords： homogeneous     cylinder     combustion     compression     dimethyl    

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Effect of ignition timing and hydrogen fraction on combustion and emission characteristics of natural

WANG Jinhua, HUANG Zuohua, LIU Bing, ZENG Ke, YU Jinrong, JIANG Deming

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 194-201 doi: 10.1007/s11708-008-0035-0

Abstract: An experimental study on the combustion and emission characteristics of a direct-injection spark-ignitedengine fueled with natural gas/hydrogen blends under various ignition timings was conducted.The interval between the end of fuel injection and ignition timing is a very important parameter forIn the lean combustion condition, the exhaust CO does not vary much with ignition timing.at large ignition advance angle.
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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 ignition

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

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Performance and emission characteristics of QHCCI dimethyl ether engine

WANG Ying, LI Wei, ZHOU Longbao, LIU Shenghua, HU Tiegang

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 401-405 doi: 10.1007/s11708-008-0075-5

Abstract: DME engine can operate at a wider range of speeds and loads at quasi-homogenous charge compression ignition

Keywords： Experimental investigation     single-cylinder direct-injection     exhaust temperature     dimethyl     compression ignition    

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Performance, emission and combustion characteristics of CI engine fuelled with diesel and hydrogen

R. Senthil KUMAR,M. LOGANATHAN,E. James GUNASEKARAN

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 486-494 doi: 10.1007/s11708-015-0368-4

Abstract: Hydrogen (H ) is being considered as a primary automotive fuel and as a replacement for conventional fuels. Some of the desirable properties, like high flame velocity, high calorific value motivate us to use hydrogen fuel as a dual fuel mode in diesel engine. In this experiment, hydrogen was inducted in the inlet manifold with intake air. The experiments were conducted on a four stroke, single cylinder, water cooled, direct injection (DI), diesel engine at a speed of 1500 r/min. Hydrogen was stored in a high pressure cylinder and supplied to the inlet manifold through a water-and-air-based flame arrestor. A pressure regulator was used to reduce the cylinder pressure from 140 bar to 2 bar. The hydrogen was inducted with a volume flow rate of 4l pm, 6l pm and 8l pm, respectively by a digital volume flow meter. The engine performance, emission and combustion parameters were analyzed at various flow rates of hydrogen and compared with diesel fuel operation. The brake thermal efficiency (BTE) was increased and brake specific fuel consumption (BSFC) decreased for the hydrogen flow rate of 8l pm as compared to the diesel and lower volume flow rates of hydrogen. The hydrocarbon (HC) and carbon monoxide (CO) were decreased and the oxides of nitrogen (NO ) increased for higher volume flow rates of hydrogen compared to diesel and lower volume flow rates of hydrogen. The heat release rate and cylinder pressure was increased for higher volume flow rates of hydrogen compared to diesel and lower volume flow rates of hydrogen.

Keywords： hydrogen     brake thermal efficiency     crank angle     compressed ignition (CI)    

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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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Study of engine performance, emission and combustion characteristics fueled with diesel-like fuel produced

V. Edwin Geo, Ankit Sonthalia, Fethi Aloui, Femilda Josephin J. S.

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1063-6

Abstract: find the suitability of fuel from waste in diesel engine through performance, emission and combustion characteristics

Keywords： Waste engine oil     Waste plastic oil     Diesel fuel     Pyrolysis     Compression ignition engine    

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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: reaction and the corresponding cell as ignition position.The 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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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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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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Effect of distributions of fuel concentration and temperature on ignition processes in a diesel PCCI

Yang YU, Wanhua SU,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 269-279 doi: 10.1007/s11708-009-0046-5

Abstract: The distributions of fuel concentration and temperature have significant effect on the ignition processesof diesel premixed charge compression ignition (PCCI) combustion.It was found in this study that the ignition process of PCCI combustion organized by multi-pulse injectionIgnition always occurred in the position where the mixture featured with equivalence ratios close toa larger initial ignition area and a higher temperature at the ignition area.

Keywords： PCCI     fuel stratification     multi-pulse injection     ignition    

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Study on electrical ignition and micro-explosion properties of HAN-based monopropellant droplet

Yonggang YU, Ming LI, Yanhuang ZHOU, Xin LU, Yuzhu PAN,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 430-435 doi: 10.1007/s11708-010-0010-4

Abstract: In order to study the electrical ignition characteristics of hydroxylammonium nitrate (HAN)-based liquidpropellant, an experimental device for the electrical heating ignition of a liquid propellant dropletBy using a high speed camera system, the ignition properties of the LP1846 single droplet were observedWhen peak load voltage is from 80 to 140V/s, the ignition delay of the LP1846 droplet is linearlyBased on the above experiments, a simplified model of the electrical heating ignition of the LP1846 single

Keywords： liquid propellant     electrical ignition     ignition delay time     transient measurement    

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New experimental technique to determine coal self-ignition duration

ZHANG Xinhai, XI Guang, ZHANG Xinhai

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 479-483 doi: 10.1007/s11708-008-0058-6

Abstract: An artificial neural network (ANN) model was adopted to simulate the relationship between self-ignitionand the data from the oil-bath experiment were taken as ANN inputs to calculate the experiment self-ignitionthan 1% of coal sample and 10% of time are required with an error of less than 3 days to test self-ignition
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Numerical simulation of bituminous coal combustion in a full-scale tiny-oil ignition burner: influence

Zhengqi LI, Chunlong LIU, Xiang ZHANG, Lingyan ZENG, Zhichao CHEN

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 296-303 doi: 10.1007/s11708-012-0191-0

Abstract: The progression of ignition was numerically simulated with the aim of realizing a full-scale tiny-oilignition burner that is identical to the burner used in an 800 MWe utility boiler.

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

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Title Author Date Type Operation

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

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

Journal Article

Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Journal Article

Effect of ignition timing and hydrogen fraction on combustion and emission characteristics of natural

WANG Jinhua, HUANG Zuohua, LIU Bing, ZENG Ke, YU Jinrong, JIANG Deming

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

Performance and emission characteristics of QHCCI dimethyl ether engine

WANG Ying, LI Wei, ZHOU Longbao, LIU Shenghua, HU Tiegang

Journal Article

Performance, emission and combustion characteristics of CI engine fuelled with diesel and hydrogen

R. Senthil KUMAR,M. LOGANATHAN,E. James GUNASEKARAN

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

Study of engine performance, emission and combustion characteristics fueled with diesel-like fuel produced

V. Edwin Geo, Ankit Sonthalia, Fethi Aloui, Femilda Josephin J. S.

Journal Article

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

Xiaoping GUO, Zhanjie 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

Ignition of Diesel by Heated Surface

Li Yuanlong,Lu Shouxiang,Fan Weicheng

Journal Article

Effect of distributions of fuel concentration and temperature on ignition processes in a diesel PCCI

Yang YU, Wanhua SU,

Journal Article

Study on electrical ignition and micro-explosion properties of HAN-based monopropellant droplet

Yonggang YU, Ming LI, Yanhuang ZHOU, Xin LU, Yuzhu PAN,

Journal Article

New experimental technique to determine coal self-ignition duration

ZHANG Xinhai, XI Guang, ZHANG Xinhai

Journal Article

Numerical simulation of bituminous coal combustion in a full-scale tiny-oil ignition burner: influence

Zhengqi LI, Chunlong LIU, Xiang ZHANG, Lingyan ZENG, Zhichao CHEN

Journal Article