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JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)
Energy Engineering,Power Engineering     
Experimental study of premixed n-heptane/air catalytic combustion characteristics in micro-cylindrical tube
HUANG Tiao, YANG Wei juan, ZHOU Jun hu, WANG Zhi hua, LIU Jian zhong, CEN Ke fa
State Key Laboratory of Clean Energy Utilization,Zhejiang University, Hangzhou 310027, China
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Abstract  

Ce0-8Zr0-2O2 supported Pt catalyst was arranged as packed-bed in micro-cylindrical quart tube to investigate premixed n-heptane/air catalytic combustion characteristics, including catalytic activity, combustor wall temperature, maximum tube wall temperature, conversion rate and surface heat loss. Catalytic activity experimental results show that ignition temperature of n-heptane in Φ=0.5 is 452 K, and catalytic combustion can be achieved under 500 K. In self-sustaining experiment, maximum wall temperature shifts downstream and high temperature zone expands. Maximum tube wall temperature of Φ=0.5 and 1 experience sharp drop in Re=125. Results indicate that When Re is fixed, working condition of Φ=1 acquires higher maximum wall temperature and conversion rate, lower surface heat loss than that of Φ=0.5, which means working condition of Φ=1 is more suitable in micro-combustors.



Published: 01 November 2016
CLC:  TK 16  
Cite this article:

HUANG Tiao, YANG Wei juan, ZHOU Jun hu, WANG Zhi hua, LIU Jian zhong, CEN Ke fa. Experimental study of premixed n-heptane/air catalytic combustion characteristics in micro-cylindrical tube. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2016, 50(11): 2058-2063.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2016.11.003     OR     http://www.zjujournals.com/eng/Y2016/V50/I11/2058


微型圆管中正庚烷/空气预混催化燃烧特性实验

为了探究微型圆管中正庚烷/空气预混催化燃烧特性的问题,在微型石英玻璃圆管内进行实验,采用填充床布置Pt催化剂,以Ce0-8Zr0-2O2为载体,研究催化活性、燃烧器壁温、最高温度、转化率、壁面散热等特性.催化活性实验测得正庚烷在当量比Φ=0.5的条件下的着火温度为452 K,且稳定的催化燃烧可以在低于500 K温度下发生.在自稳燃烧中,随着雷诺数增大,壁面最高温度逐渐向下游移动,且高温区扩大,在Φ=0.5和Φ=1这2种条件下燃烧器外壁最高温度均在Re=125处发生明显转折.研究结果表明,在雷诺数相同的条件下,Φ=1的工况相对于Φ=0.5的工况壁面最高温度和转化率更高、散热量占输入热量的比例更小,Φ=1的工况更适于实际燃烧器的应用.

[1] JU Y G, MARUTA K. Microscale combustion: Technology development and fundamental research [J]. Progress in Energy and Combustion Science, 2011, 37(6): 669-715.
[2] KAISARE N S, VLACHOS D G. A review on microcombustion: Fundamentals, devices and applications [J]. Progress in Energy and Combustion Science, 2012, 38(3): 321-359.
[3] YANG W M, CHOU S K, SHU C, et al. Microscale combustion research for application to micro thermophotovoltaic systems [J]. Energy Conversion and Management, 2003, 44(16): 2625-2634.
[4] GHAZVINI M, NARAYANAN V. A microscale combustor recuperator and oil heat exchangerdesign and thermofluidic characterization [J]. International Journal of Heat and Mass Transfer, 2013, 64(7): 881002.
[5] BAGHERI G, HOSSEINI S E. Impacts of inner/outer reactor heat recirculation on the characteristic of microscale combustion system [J]. Energy Conversion and Management, 2015, 105(11): 45-53.
[6] DENG C, YANG W J, ZHOU J H, et al. Catalytic combustion of methane, methanol, and ethanol in microscale combustors with Pt/ZSM5 packed beds [J]. Fuel, 2015, 150(6): 339-346.
[7] YANG W M, CHOU S K, SHU C, et al. Combustion in microcylindrical combustors with and without a backward facing step [J]. Applied Thermal Engineering, 2002, 22(16): 1777-1787.
[8] 张永生, 周俊虎, 杨卫娟, 等. 微燃烧稳定性分析和微细管道燃烧实验研究[J]. 浙江大学学报:工学版, 2006, 40(7): 1178-1182.
ZHANG Yongsheng, ZHOU Junhu, YANG Weijuan, et al. Burning stability analysis of microcombustion and experimental research of combustion in microscale tube [J]. Journal of Zhejiang University: Engineering Science, 2006, 40(7): 1178-1182.
[9] 杨卫娟, 周俊虎, 汪洋, 等. 微尺度燃烧中的温度及热回流分布[J]. 中国电机工程学报, 2010, 30(20): 28-32.
YANG Weijuan, ZHOU Junhu, WANG Yang, et al. Temperature and heatrecirculation distribution in microscale combustion [J]. Proceedings of the CSEE, 2010, 30(20): 28-32.
[10] GHAZVINI M, NARAYANAN V. A microscale combustor recuperator and oil heat exchangerdesign and thermofluidic characterization [J]. International Journal of Heat and Mass Transfer, 2013, 64(7): 881002.
[11] MARUTA K, TAKEDA K, AHN J, et al. Extinction limits of catalytic combustion in microchannels [J]. Proceedings of the Combustion Institute, 2002, 29(1): 957-963.
[12] CHAO Y C, CHEN G B, HSU C J, et al. Operational characteristics of catalytic combustion in a platinum microtube [J]. Combustion Science and Technology, 2004, 176(10): 1755-1777.
[13] 潘剑锋, 范宝伟, 吴庆瑞, 等. 微尺度下氢氧预混合气催化燃烧的研究[J]. 机械工程学报, 2011, 47(24): 111-116.
PAN Jianfeng, FAN Baowei, WU Qingrui, et al. Study on catalytic combustion of premixed hydrogen and oxygen in the microscale [J]. Journal of Mechanical Engineering, 2011, 47(24): 111-116.
[14] YANG W J, DENG C, ZHOU J H, et al. Mesoscale combustion of ethanol and dimethyl ether over Pt/ZSM5: Differences in combustion characteristics and catalyst deactivation [J]. Fuel, 2016, 165(2): 19.
[15] ZHONG W H, LIU Y X, ZHANG D J. A comparative theoretical study for the methanol dehydrogenation to CO over Pt3 and PtAu2 clusters [J]. Journal of Molecular Modeling, 2012, 18(7): 3051-3060.
[16] YAMAMOTO A, OSHIBE H, NAKAMURA H, et al. Stabilized threestage oxidation of gaseous nheptane/air mixture in a micro flow reactor with a controlled temperature profile [J]. Proceedings of the Combustion Institute, 2011, 33: 3259-3266.
[17] LI J W, HUANG J H, YAN M, et al. Experimental study of n-heptane/air combustion in mesoscale burners with porous media [J]. Experimental Thermal and Fluid Science, 2014, 52: 47-58.
[18] 姚荣, 李军伟, 邱佐祯, 等. 正庚烷液滴在微细直管中的燃烧特性实验[J]. 航空动力学报, 2015, 30(9): 2129-2139.
YAO Rong, LI Junwei, QIU Zuozhen, et al. Experiment on combustion characteristics of nheptane droplets in microtube [J]. Journal of Aerospace Power, 2015, 30(9): 2129-2139.
[19] HAMOULE A, PEYROVI M H, RASHIDZADEH M, et al. Catalytic reforming of nheptane over Pt/AlHMS catalysts [J]. Catalysis Communications, 2011, 16(1): 234239.
[20] BIJJULA K, VLACHOS D G. Catalytic ignition and autothermal combustion of JP-8 and its surrogates over a Pt/γ-Al2O3 catalyst [J]. Proceedings of the Combustion Institute, 2011, 33: 1801-1807.
[21] 邓尘, 杨卫娟, 王威, 等. 微型缩放喷管中氢气/空气预混燃烧实验研究[J]. 中国电机工程学报, 2014, 34(2): 260-265.
DENG Chen, YANG Weijuan, WANG Wei, et al. Experiments on H2/air premixed combustion in a micro laval nozzle [J]. Proceedings of the CSEE, 2014, 34(2): 260-265.
[22] 焦健, 钟北京. 甲烷微通道内催化燃烧有关转化率的讨论[J]. 工程热物理学报, 2007, 28(2): 357-359.
JIAO Jian, ZHONG Beijing. Discussion on CH4 conversion ratio of catalytic combustion in microtubes [J]. Journal of Engineering Thermophysics, 2007, 28(2): 357-359.
[23] LI J W, ZHONG B J. Experimental investigation on heat loss and combustion in methane/oxygen microtube combustor [J]. Applied Thermal Engineering, 2008, 28(7):707-716.
[24] ZHONG B J, YU Y W, YANG F. Effect of catalyst length and hydrogen addition on the combustion characteristics of nbutane in a catalytic swissroll combustor [J]. Combustion Science and Technology, 2015, 187(10): 1504-1519.
[25] 周俊虎, 汪洋, 杨卫娟, 等. 燃烧器材料的热物理性质对微尺度催化燃烧的影响[J]. 中国电机工程学报, 2010, 30(5): 11-16.
ZHOU Junhu, WANG Yang, YANG Weijuan, et al. Effect of thermal property of materials on microscale catalytic combustion for the micro combustor [J]. Proceedings of the CSEE, 2010, 30(5): 11-16.

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