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XU Xiao-ming, JIANG Hao-bin, GONG Ran. Flow field characteristics of catalytic muffler for medium-heavy duty truck[J]. Journal of Traffic and Transportation Engineering, 2015, 15(5): 65-71. doi: 10.19818/j.cnki.1671-1637.2015.05.009
Citation: XU Xiao-ming, JIANG Hao-bin, GONG Ran. Flow field characteristics of catalytic muffler for medium-heavy duty truck[J]. Journal of Traffic and Transportation Engineering, 2015, 15(5): 65-71. doi: 10.19818/j.cnki.1671-1637.2015.05.009
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Flow field characteristics of catalytic muffler for medium-heavy duty truck

doi: 10.19818/j.cnki.1671-1637.2015.05.009

  • School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

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  • Author Bio:

    XU Xiao-ming(1982-), male, associate professor, PhD, +86-511-88797620, xuxiaoming3777@163.com

  • Received Date: 2015-05-16
  • Publish Date: 2015-10-25
    Abstract
  • Aiming at catalytic mufflers with different air inlet structures and shapes of mediumheavy duty truck, the air inlet uniformity of carrier front face and the total pressure difference between the inlet and outlet were calculated by Fluent software, and the flow field characteristics were analyzed.Calculation result indicates that the flow field characteristics of catalytic muffler are related to engine exhaust.The air inlet uniformity of carrier front face and the total pressure difference between the inlet and outlet are very important for analyzing the flow field characteristics.The air inlet uniformity and the total pressure difference increase after adding baffle, and the flow field characteristics are best after adding erect baffle.The flow field characteristics are good when inlet pipe diameter shrinks by 40 mm and outlet pipe diameter expands by 40 mm.After optimizing catalytic muffler, the air inlet uniformities of carrier front face respectively increase by 1.2%and 1.6%, and the total pressure differences between the inlet and outlet respectively decrease by 57.5%and 63.9%compared to the values before optimization when engine rotation speeds are 900r·min-1 and 1 900r·min-1 respectively, which shows that structure optimization significantly decreases the total pressure difference.Compared to barrel shape catalytic muffler, the air inlet uniformity of carrier front face for box shape catalytic muffler increases.Spatial arrangement and utilization efficiency should be considered as well forchoosing catalytic muffler.

     

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    • References(20)
  • [1]
    SABBAH R, KIZILEL R, SELMAN J R, et al. Active(air-cooled)vs. passive(phase change material)thermal management of high power lithium-ion packs: limitation of temperature rise and uniformity of temperature distribution[J]. Journal of Power Sources, 2008, 182(2): 630-638. doi: 10.1016/j.jpowsour.2008.03.082
    [2]
    XU Xiao-ming, HE Ren. Review on the heat dissipation performance of battery pack with different structures and operation conditions[J]. Renewable and Sustainable Energy Reviews, 2014, 29: 301-315. doi: 10.1016/j.rser.2013.08.057
    [3]
    YANG Fan, HU Yang-yang, WANG Jian-hua. Optimization of wind resistance for heavy truck[J]. Journal of Traffic and Transportation Engineering, 2013, 13(6): 54-60. (in Chinese) doi: 10.3969/j.issn.1671-1637.2013.06.008
    [4]
    YIN He-jian. Study on design and simulation of compact SCR purified noise reduction devices[D]. Harbin: Harbin Engineering University, 2010. (in Chinese)
    [5]
    HOWITT J S, SEKELLA T C. Flow effects in monolithic honeycomb automotive catalytic converters[J]. SAE Technical Papers, 1974, 83: 1067-1075.
    [6]
    JEONG S J, KIM W S, KIM T. An application of CFD to improve warm-up performance of the 3-way auto-catalyst by high surface area and low thermal mass[J]. International Journal of Vehicle Design, 2002, 29(3): 243-268. doi: 10.1504/IJVD.2002.002012
    [7]
    CHEN Ping-en, WANG Jun-min. Air-fraction modeling for simultaneous diesel engine NOX and PM emissions control during active DPF regenerations[J]. Applied Energy, 2014, 122: 310-320. doi: 10.1016/j.apenergy.2014.02.031
    [8]
    HU Y, GALLAND M A, CHEN K. Acoustic transmission performance of double-wall active sound packages in a tube: numerical/experimental validations[J]. Applied Acoustics, 2012, 73(4): 323-337. doi: 10.1016/j.apacoust.2011.10.003
    [9]
    LIU Lian-yun, HAO Zhi-yong, LIU Chi. CFD analysis of a transfer matrix of exhaust muffler with mean flow and prediction of exhaust noise[J]. Journal of Zhejiang University Science A: Applied Physics and Engineering, 2012, 13(9): 709-716.
    [10]
    LEE S J, JEONG S J, KIM W S. Numerical design of the diesel particulate filter for optimum thermal performances during regeneration[J]. Applied Energy, 2009, 86(7/8): 1124-1135.
    [11]
    PANIGRAHI S N, MUNJAL M L. Back pressure considerations in designing of cross flow perforated-element reactive silencers[J]. Noise Control Engineering Journal, 2007, 55(6): 504-515. doi: 10.3397/1.2817808
    [12]
    KOJIMA N, NAKAMURA Y, FUKUDA M. A study on the correlation between fluctuating velocity in a muffler and air flow noise[J]. JSME International Journal, 1987, 30(265): 1113-1120. doi: 10.1299/jsme1987.30.1113
    [13]
    SHUAI Shi-jin, WANG Jian-xin, ZHUANG Ren-jun, et al. Numerical simulation of flows in automotive catalytic converters and its application on optimum structure design[J]. Transactions of CSICE, 2002, 20(2): 211-216. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-NRJX200002024.htm
    [14]
    LIU Jun, SU Qing-zu. Numerical simulation and testing research on flow distribution in catalytic converter[J]. Transactions of the CSAE, 2003, 19(1): 95-98. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-NYGU200301025.htm
    [15]
    GU Fang, LIU Bo-tan, LI Hong-liang, et al. Structural analyses for the vehicle exhausts system based on CFD simulation[J]. Transactions of CSICE, 2007, 25(4): 358-363. (in Chinese) doi: 10.3321/j.issn:1000-0909.2007.04.012
    [16]
    XI Zhu-kun. Research and designing of selective reduction catalyst converter combined with silencer for heavy duty diesel engine[D]. Taiyuan: Taiyuan University of Technology, 2009. (in Chinese)
    [17]
    BAI Dan-dan. Modeling and research of Urea-SCR exhaust system[D]. Dalian: Dalian University of Technology, 2012. (in Chinese)
    [18]
    GE Ji-wei, WANG Zhi. Analysis of expansion muffler performance with different inlet/outlet distribution[J]. Machine Building and Automation, 2015, 44(2): 7-10. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZZHD201502003.htm
    [19]
    LI Su, GE Yun-shan, LI Zhi-qin, et al. A three-dimensional acoustic boundary element model of the reactive mufflers and its application[J]. Transactions of CSICE, 1992, 10(2): 147-154. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-NRJX199202008.htm
    [20]
    FU Jun, GONG Jin-ke, YUAN Wen-hua, et al. Establi-shment and application of MAP for regeneration back-pressure threshold value of diesel particulate filter[J]. Transactions of the Chinese Society of Agricultural Engineering, 2013, 29(12): 47-56. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-NYGU201312009.htm
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