[1]陈悦,吕林.船用柴油机SCR系统混合器仿真与试验研究[J].哈尔滨工程大学学报,2016,37(01):24-29.[doi:10.11990/jheu.201410007]
 CHEN Yue,LYU Lin.Numerical simulation and experimental study of static mixers for a marine SCR system[J].hebgcdxxb,2016,37(01):24-29.[doi:10.11990/jheu.201410007]
点击复制

船用柴油机SCR系统混合器仿真与试验研究(/HTML)
分享到:

《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
37
期数:
2016年01期
页码:
24-29
栏目:
出版日期:
2016-01-25

文章信息/Info

Title:
Numerical simulation and experimental study of static mixers for a marine SCR system
作者:
陈悦 吕林
武汉理工大学 高性能船舶技术教育部重点实验室, 湖北 武汉 430063
Author(s):
CHEN Yue LYU Lin
Key Laboratory of High Performance Ship of Ministry of Education, Wuhan University of Technology, Wuhan 430063, China
关键词:
柴油机船机SCR氮氧化物排放试验混合器计算流体力学
分类号:
TK421.5
DOI:
10.11990/jheu.201410007
文献标志码:
A
摘要:
为了提高船用柴油机SCR的尿素蒸发分解速率以及与排气的混合均匀性,运用CFD手段对船机SCR系统的混合器进行优化设计,对比分析不同结构混合器对NH3分布均匀性、NOx转化效率、NH3泄漏及压力损失的影响。模拟结果表明:混合器有利于液滴的破碎,可促进尿素的蒸发及热解,同时能够提高喷雾与排气的混合均匀性;8叶片锥形混合器的混合效果最好,可使NOx转化率提高14.3%,氨泄漏降低25 ppm。对优化设计后的船机SCR系统进行柴油机D2循环排放试验,试验结果表明:在相同的催化剂体积和尿素喷射量下,安装8叶片锥形混合器后各工况点的NOx转化效率均上升约8%,NOx加权比排放从0.56 g/(kW·h)下降到0.37 g/(kW·h)。

参考文献/References:

[1] ZHENG Guanyu, PALMER G, SALANTA G, et al. Mixer development for urea SCR applications. SAE Technical Paper 2009-01-2879[R]. New York:SAE, 2009.
[2] RAJADURAI S. Improved NOx reduction using wire mesh thermolysis mixer in urea SCR system. SAE Technical Paper 2008-01-2636[R]. New York:SAE, 2008.
[3] ZHANG Xiaogang, ROMZEK M, MORGAN C. 3-D numerical study of mixing characteristics of NH3 in front of SCR. SAE Technical Paper 2006-01-3444[R]. New York:SAE, 2006.
[4] ZHENG Guanyu, PALMER G, SALANTA G, et al. Mixer development for urea SCR applications. SAE Technical Paper 2009-01-2879[R]. New York:SAE, 2009.
[5] ZHAN R, LI Wei, EAKLE S T, et al. Development of a novel device to improve urea evaporation, mixing and distribution to enhance SCR performance. SAE Paper 2010-01-1185[R]. New York:SAE, 2010.
[6] 朱元清, 周松, 王金玉, 等. 船舶柴油机Urea-SCR系统工作过程计算研究[J]. 中南大学学报:自然科学版, 2013, 44(5):2093-2100. ZHU Yuanqing, ZHOU Song, WANG Jinyu, et al. Calculation of working process in a marine diesel Urea-SCR system[J]. Journal of central south university:science and technology, 2013, 44(5):2093-2100.
[7] DHANUSHKODI S R, MAHINPEY N, WILSON M. Kinetic and 2-D reactor modeling for simulation of the catalytic reduction of NOx in the monolith honeycomb reactor[J]. Process safety and environmental protection, 2008, 86(4):303-309.
[8] STRÖM H, LUNDSTRÖM A, ANDERSSON B. Choice of urea-spray models in CFD simulations of urea-SCR systems[J]. Chemical engineering journal, 2009, 150(1):69-82.
[9] 周细玲. 船机SCR系统排气流场CFD分析与优化[D]. 武汉:武汉理工大学, 2012.
[10] OESTERLE J J, CALVO S, DAMSON B, et al. SCR Technology with focus to stringent emissions legislation. SAE Technical Paper 2008-01-2640[R]. New York:SAE, 2008.
[11] CHOI C, SUNG Y, CHOI G M, et al. Numerical analysis of urea decomposition with static mixers in marine SCR system[J]. Journal of Clean Energy Technologies, 2015, 3(1):39-42.
[12] OH J, LEE K. Spray characteristics of a urea solution injector and optimal mixer location to improve droplet uniformity and NOx conversion efficiency for selective catalytic reduction[J]. Fuel, 2014, 119:90-97.
[13] 张纪元, 李国祥, 孙少军, 等. 车用柴油机Urea-SCR催化器优化设计及试验研究[J]. 内燃机工程, 2013, 34(1):57-61. ZHANG Jiyuan, LI Guoxiang, SUN Shaojun, et al. Design and experiment of Urea-SCR converter for heavy-duty diesel engine[J]. Chinese internal combustion engine engineering, 2013, 34(1):57-61.

相似文献/References:

[1]朱明刚,杨铁军,率志君,等.基于自适应梳状滤波算法的有源隔振技术[J].哈尔滨工程大学学报,2011,(12):1576.[doi:doi:10.3969/j.issn.1006-7043.2011.12.009]
 ZHU Minggang,YANG Tiejun,SHUAI Zhijun,et al.Investigation of active vibration isolation based on an adaptive algorithm[J].hebgcdxxb,2011,(01):1576.[doi:doi:10.3969/j.issn.1006-7043.2011.12.009]
[2]王银燕,于恩程.相继增压柴油机瞬态切换喷油策略[J].哈尔滨工程大学学报,2012,(07):839.[doi:10.3969/j.issn.1006-7043.201107066]
 WANG Yinyan,YU Encheng.The fuel injection strategy in the transient switching process of a sequential turbocharging diesel engine[J].hebgcdxxb,2012,(01):839.[doi:10.3969/j.issn.1006-7043.201107066]
[3]高占斌,王银燕,李先南,等.相继增压改善柴油机经济性与排放的试验研究[J].哈尔滨工程大学学报,2012,(10):1244.[doi:10.3969/j.issn.1006-7043.201112054]
 GAO Zhanbin,WANG Yinyan,LI Xiannan,et al.Experimental research on economy and emission performance of STC diesel engine[J].hebgcdxxb,2012,(01):1244.[doi:10.3969/j.issn.1006-7043.201112054]
[4]李昕光,王银燕,何清林.柴油机相继增压系统瞬态切换策略试验研究 [J].哈尔滨工程大学学报,2013,(08):972.[doi:10.3969/j.issn.10067043.201301027]
[5]高浩卜,李向荣,耿文耀,等.双卷流燃烧室与油束夹角匹配对柴油机排放的影响[J].哈尔滨工程大学学报,2014,(02):216.[doi:10.3969/j.issn.1006-7043.201301002]
 GAO Haobu,LI Xiangrong,GENG Wenyao,et al.Effects of spray angle on the emissions characteristics of diesel engine matched with double swirl combustion system[J].hebgcdxxb,2014,(01):216.[doi:10.3969/j.issn.1006-7043.201301002]
[6]张龙平,刘忠长,田径,等.车用柴油机瞬态工况试验及性能评价方法[J].哈尔滨工程大学学报,2014,(04):463.[doi:10.3969/j.issn.10067043.201309082]
 ZHANG Longping,LIU Zhongchang,TIAN Jing,et al.Experiment and performance evaluation methods for automotive diesel engines under transient operation conditions[J].hebgcdxxb,2014,(01):463.[doi:10.3969/j.issn.10067043.201309082]
[7]刘鹏,范立云,马修真,等.高速电磁阀动态响应特性响应面预测模型的研究[J].哈尔滨工程大学学报,2014,(05):537.[doi:10.3969/j.issn.10067043.201304088]
 LIU Peng,FAN Liyun,MA Xiuzhen,et al.Study of the response surface prediction model of the dynamic response characteristics of the highspeed solenoid valve[J].hebgcdxxb,2014,(01):537.[doi:10.3969/j.issn.10067043.201304088]
[8]冷先银,魏胜利,田江平,等.充量温度对某中速柴油机燃烧和NOx排放的影响[J].哈尔滨工程大学学报,2014,(11):1351.[doi:10.3969/j.issn.1006-7043.201308049]
 LENG Xianyin,WEI Shengli,TIAN Jiangping,et al.The influence of charge temperature on the combustion and NOx emission of a medium speed diesel engine[J].hebgcdxxb,2014,(01):1351.[doi:10.3969/j.issn.1006-7043.201308049]
[9]付丽荣,张文平,明平剑,等.柴油机缸内辐射换热三维数值模拟[J].哈尔滨工程大学学报,2014,(08):948.[doi:10.3969/j.issn.1006-7043.201307071]
 FU Lirong,ZHANG Wenping,MING Pingjian,et al.Study of the 3D numerical simulation of the in-cylinder radiation heat transfer of diesel engines[J].hebgcdxxb,2014,(01):948.[doi:10.3969/j.issn.1006-7043.201307071]
[10]肖小勇,向阳,钱思冲,等.多谐次相位法在柴油机故障诊断上的应用[J].哈尔滨工程大学学报,2014,(08):954.[doi:10.3969/j.issn.1006-7043.201306050]
 XIAO Xiaoyong,XIANG Yang,QIAN Sichong,et al.The application of the multi-harmonic phase method to fault diagnosis of diesel engines[J].hebgcdxxb,2014,(01):954.[doi:10.3969/j.issn.1006-7043.201306050]

备注/Memo

备注/Memo:
收稿日期:2014-10-07;改回日期:。
基金项目:国家自然科学基金资助项目(51379165);湖北省自然科学基金资助项目(20520005).
作者简介:陈悦(1987-), 男, 研究生, 博士研究生;吕林(1961-), 男, 教授, 博士生导师.
通讯作者:陈悦, E-mail: chenyuedadi@126.com.
更新日期/Last Update: 2016-02-04