[1]袁帅,王贺春,林娉羽,等.两种米勒循环方案对发动机性能影响对比[J].应用科技,2017,(05):17-21,29.[doi:10.11991/yykj.201612020]
 YUAN Shuai,WANG Hechun,LIN Pinyu,et al.Contrast on the effects of two miller cycle schemes on engine performance[J].yykj,2017,(05):17-21,29.[doi:10.11991/yykj.201612020]
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两种米勒循环方案对发动机性能影响对比(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
期数:
2017年05期
页码:
17-21,29
栏目:
动力与能源工程
出版日期:
2017-10-05

文章信息/Info

Title:
Contrast on the effects of two miller cycle schemes on engine performance
作者:
袁帅 王贺春 林娉羽 王银燕
哈尔滨工程大学 动力与能源工程学院, 黑龙江 哈尔滨 150001
Author(s):
YUAN Shuai WANG Hechun LIN Pinyu WANG Yinyan
School of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
柴油机燃烧性能仿真米勒循环变气阀重叠角变凸轮型线油耗NOx
Keywords:
diesel enginecombustionperformance simulationMiller cyclevariable valve overlap anglevariable cam profilefuel consumptionNOx
分类号:
TK421.21
DOI:
10.11991/yykj.201612020
文献标志码:
A
摘要:
应用通过提早或迟后关闭进气门的米勒循环降低缸内最高燃烧温度以达到降低缸内NOx排放目的。基于GT-power软件建立并校准TBD620单缸机的仿真模型,对变气阀重叠角(VVO)和变凸轮型线(VCT)两种米勒循环方案进行仿真分析,对比了二者对TBD620单缸机经济性能及NOx排放的影响。结果表明,两种方案,米勒度越大,低负荷工况油耗越少,高负荷工况油耗先减少后增大;NOx排放明显减少,高负荷时降幅为90%以上。与VCT方案相比,VVO方案的经济性能和排放性能较优。
Abstract:
By applying Miller cycle in which the intake valve is closed ahead of time or later, the maximum combustion temperature in the cylinder wass lowered for the purpose of reducing the emission of NOx from the cylinder. A simulative model on TBD620 single-cylinder engine was established and calibrated on basis of GT-power software, then a simulative analysis was made for the vary valve overlap (VVO) and vary cam Timing(VCT) scheme, the effects of both schemes on the economy of TBD620 single-cylinder engine and NOx emission were compared. The results show that, for both VVO and VCT, with the increase of Miller timing, the fuel consumption decreases under the condition of low load, while for the condition of high load, the fuel consumption decreases first and then increases; NOx emission decreases significantly, and the decrease range is more than 90% at high load. Compared with VCT, VVO has better economy and emission performances.

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备注/Memo

备注/Memo:
收稿日期:2016-12-30。
基金项目:国家科技支撑计划项目(2015BAG16B01).
作者简介:袁帅(1992-),男,硕士研究生;王银燕(1961-),女,教授,博士生导师.
通讯作者:王贺春,E-mail:wanghechun@hrbeu.edu.cn.
更新日期/Last Update: 2017-11-30