Please wait a minute...
浙江大学学报(工学版)  2017, Vol. 51 Issue (8): 1626-1632    DOI: 10.3785/j.issn.1008-973X.2017.08.019
机械与能源工程     
内嵌换热面双层多孔介质预混燃烧试验研究
段毅, 程乐鸣, 吴雪松, 邱坤赞, 骆仲泱
浙江大学 能源清洁利用国家重点实验室, 浙江 杭州 310027
Experimental study on premixed combustion in two-layer porous media with embedded heat exchangers
DUAN Yi, CHENG Le-ming, WU Xue-song, QIU Kun-zan, LUO Zhong-yang
College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
 全文: PDF(1259 KB)   HTML
摘要:

为了研究具有内嵌换热面的泡沫型多孔介质中的气体燃烧、传热特性,将换热面内嵌布置于双层泡沫型多孔介质下游碳化硅泡沫陶瓷中,试验研究甲烷/空气预混气体在其中的温度分布、稳燃范围、燃烧产物排放特性,分析燃烧器热效率和换热面在多孔介质内的传热过程.结果表明,在泡沫型多孔介质燃烧系统中内嵌换热面后可以降低燃烧器温度水平,具有较宽的稳燃范围;相较于无换热面情况,内嵌换热面后,燃烧器出口NOx排放量下降,试验工况范围内低于35 mg/m3;燃烧器热效率随入口气流速度下降并保持在60%~80%;换热管外壁与多孔介质气固两相的传热相较于传统的气流横向冲刷管束,平均传热系数增幅可达75%.

Abstract:

CH4/air premixed combustion in SiC porous media with embedded heat exchangers were experimentally investigated in order to analyze the combustion and heat transfer behaviors in porous media with embedded heat exchangers. Temperature distribution, stability limits and pollutant emissions at varied equivalence ratios and cooling water flow rates were presented. Thermal efficiency of burner and the heat transfer between heat exchangers and the porous media were analyzed. The temperature level was lowered within heat exchangers embedded, and the flame can stabilize in a relatively wide range of the inlet velocity. The nitrogen oxide (NOx) emission of the burner with heat exchangers embedded was less than that of porous burner without heat exchangers, which was lower than 35 mg/m3 under all experiment conditions. The thermal efficiency of the burner decreaseds with the inlet air flow rate and was kept in the range of 60%~80%. The average heat transfer coefficient between the porous media and the heat exchangers increaseds 75% compared with the conventional convection of flow across the tube banks.

收稿日期: 2016-07-05 出版日期: 2017-08-16
CLC:  TK16  
通讯作者: 程乐鸣,男,教授.ORCID:0000-0003-3643-2617.     E-mail: lemingc@zju.edu.cn
作者简介: 段毅(1992-),男,硕士生,从事燃气清洁高效燃烧等研究.ORCID:0000-0002-3797-7080.E-mail:21427068@zju.edu.cn
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
作者相关文章  

引用本文:

段毅, 程乐鸣, 吴雪松, 邱坤赞, 骆仲泱. 内嵌换热面双层多孔介质预混燃烧试验研究[J]. 浙江大学学报(工学版), 2017, 51(8): 1626-1632.

DUAN Yi, CHENG Le-ming, WU Xue-song, QIU Kun-zan, LUO Zhong-yang. Experimental study on premixed combustion in two-layer porous media with embedded heat exchangers. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(8): 1626-1632.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2017.08.019        http://www.zjujournals.com/eng/CN/Y2017/V51/I8/1626

[1] MUJEEBU M A, ABDULLAH M Z, BAKAR M Z A, et al. Applications of porous media combustion technology-a review[J]. Applied Energy, 2009, 86(9):1365-1375.
[2] MOHAMAD A A. 11 Combustion in porous media:Fundamentals and applications//Transport Phenomena in Porous Media Ⅲ. Oxford:Pergamon, 2005:287-304.
[3] DURST F, TRIMIS D. Combustion by free flames versus combustion reactors[J]. Clean Air, 2002, 3(1):1-20.
[4] TRIMIS D. Stabilized combustion in porous media-Applications of the porous burner technology in energy-and heat-engineering[C]//Fluids 2000 Conference and Exhibit. Denver, USA:AIAA, 2000:1-11.
[5] 张俊春.多孔介质燃烧处理低热值气体及燃烧不稳定性研究[D].杭州:浙江大学.2014. ZHANG Jun-chun. Porous media combustion for low calorific gases and combustion instabilities[D]. Hanchou:Zhejiang University, 2014.
[6] XIONG T, KHINKIS M J, FISH F F. Experimental study of a high-efficiency, low emission porous matrix combustor-heater[J]. Fuel, 1995, 74(11):1641-1647.
[7] KENNEDY L A, SAVELIEV A V, CONTARIN F, et al. Energy extraction from a porous media reciprocal flow burner with embedded heat exchangers[J]. Transactions of the Asme Serie C Journal of Heat Transfer, 2005, 127(2):123-130.
[8] CONTARIN F, SAVELIEV A V, FRIDMAN A A, et al. A reciprocal flow filtration combustor with embedded heat exchangers:numerical study[J]. International Journal of Heat & Mass Transfer, 2003, 46(6):949-961.
[9] JUGJAI S, SAWANANON A. The surface combustor-heater with cyclic flow reversal combustion embedded with water tube bank[J]. Fuel, 2004, 83(17/18):2369-2379.
[10] LIU J F, WEN H H. Experimental investigation of combustion in porous heating burners[J]. Combustion & Flame, 2004, 138(3):295-303.
[11] DAI H, LIN B, JI K, et al. Combustion characteristics of low-concentration coal mine methane in ceramic foam burner with embedded alumina pellets[J]. Applied Thermal Engineering, 2015, 90:489-498.
[12] BRENNER G, PICKENÄCKER K, PICKENÄCKER O, et al. Numerical and experimental investigation of matrix-stabilized methane/air combustion in porous inert media[J]. Combustion & Flame, 2000, 123(1/2):201-213.
[13] SMUCKER M T, ELLZEY J L. Computational and experimental study of a two-section porous burner[J]. Combustion Science And Technology, 2004, 176(8):1171-1189.
[14] QU Z, GAO H, FENG X, et al. Premixed Combustion in a Porous Burner with Different Fuels[J].Combustion Science & Technology, 2014, 187(3):489-504.
[15] Al-ATTAB K A, HO J C, ZAINAL Z A. Experimental investigation of submerged flame in packed bed porous media burner fueled by low heating value producer gas[J]. Experimental Thermal & Fluid Science, 2015, 62:1-8.
[16] KIM S G, LEE D K, NOH D S. An experimental study of N2 dilution effects on CH4-O2flame stabilization characteristics in a two-section porous medium[J]. Applied Thermal Engineering, 2016, 103:1390-1397.
[17] 黄冉思思,程乐鸣,邱坤赞,等.中、低热值预混气体在双层多孔介质中的贫燃特性[J].浙江大学学报:工学版,2015,49(9):1783-1789. HUAN Ran-sisi, CHENG Le-ming, QIU Kun-zan, et al. Lean combustion of moderate/low calorific premixed gases in two-layer porous burner[J]. Journal Of Zhejiang University:Engineering Science, 2015, 49(9):1783-1789.
[18] BARRA A J, DIEPVENS G, ELLZEY J L, et al. Numerical study of the effects of material properties on flame stabilization in a porous burner[J]. Combustion & Flame, 2003, 134(4):369-379.
[19] GAO H B, QU Z G, HE Y L, et al. Experimental study of combustion in a double-layer burner packed with alumina pellets of different diameters[J]. Applied Energy, 2012, 100(8):295-302.
[20] WOOD S, HARRIS A T. Porous burners for lean-burn applications[J]. Progress in Energy & Combustion Science, 2008, 34(5):667-684.

[1] 周昊, 李宁, 李源, 赵梦豪, 岑可法. 富氧条件下乙醇喷雾燃烧特性的实验研究[J]. 浙江大学学报(工学版), 2018, 52(9): 1821-1827.
[2] 吴学成, 王怀, 浦世亮, 浦兴国, 袁镇福, 陈玲红, 岑可法. 数字共轴全息中颗粒识别与定位[J]. J4, 2010, 44(4): 765-770.
[3] 毛艳艳, 马增益, 余量, 等. 废弃印刷线路板热解过程中溴的转化[J]. J4, 2009, 43(5): 937-941.