天然气混氢发动机稀燃极限影响因素试验研究

doi:10.3969/j.issn.1000-1093.2012.07.002

兵工学报 ›› 2012, Vol. 33 ›› Issue (7): 776-781.doi: 10.3969/j.issn.1000-1093.2012.07.002

天然气混氢发动机稀燃极限影响因素试验研究

王欣^1，2，张红光¹，姚宝峰^{1， 3}，孙晓娜¹，雷艳¹，王道静^1，2，白小磊¹，葛蕴珊²

（1.北京工业大学环境与能源工程学院，北京 100124; 2.北京理工大学机械与车辆学院，北京 100081;3.北京交通大学机械与电子控制工程学院，北京 100044）

收稿日期:2010-11-27 修回日期:2010-11-27 上线日期:2017-02-28
作者简介:王欣（1989—），男，硕士研究生
基金资助:
北京工业大学“星火基金”项目（XH-2010-05-01），北京工业大学基础研究基金项目（001000514311012）

Experimental Study on the Factors Affecting Lean Combustion Limit of S.I. Hydrogen-Natural Gas Engine

WANG Xin^1,2, ZHANG Hong-guang¹, YAO Bao-feng^1,3, SUN Xiao-na¹, LEI Yan¹,

(1.College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124;2.School of Mechanical and Vehicle Engineering, Beijing Institute of Technology, Beijing 100081;3.School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China)

Received:2010-11-27 Revised:2010-11-27 Online:2017-02-28

摘要/Abstract

摘要： 为了研究点火提前角、掺氢比、节气门开度、发动机转速、机油和冷却水温度对天然气混氢发动机稀燃极限的影响，在一台点燃式发动机上开展了台架试验。试验转速1 500～3 000 r/min，节气门开度10%～40%，机油温度75 ℃～95 ℃，冷却水温度65 ℃～85 ℃. 试验用燃料掺氢比0～40%，点火提前角条件为稀燃最佳角。结果表明：过大和过小的点火提前角都使发动机的稀燃极限减小；稀燃极限随燃料中掺氢比增加而显著提高；随节气门开度增加略有上升；随发动机转速增加而减小；随机油温度升高先减小后增大；随冷却水温度升高而略有上升。

关键词: 动力机械工程, 天然气, 氢气, 发动机, 稀燃极限

Abstract: An experimental study was conducted on a spark ignition engine to investigate the factors that affect the lean combustion limit of hydrogen- natural gas engine. The effects of ignition timing, hydrogen mixing ratio, engine speed, throttle opening, lubricant oil and coolant temperature were examined. The engine speed was 1 500-3 000 r/min, the throttle opening was 10%-40%, the lubricant temperature was 75 ℃-95 ℃,and the coolant temperature was 65 ℃-85 ℃ during experience. The hydrogen mixing ratio varied from 0 to 40%, and the lean-combustion limit ignition timing was defined and adopted. The result shows that both over-retarded and over-advanced ignition timing would baffle the extension of lean-combustion limit. The lean-combustion limit increases with hydrogen mixing ratio, slightly increases with throttle opening, and decreases when the engine speed is raised. Besides, it decreases with the increase in lubricant temperature. Warming-up coolant is positively related to enlarge the lean-combustion limit.

Key words: power mechanical engineering, natural gas, hydrogen, internal combustion engine, lean combustion limit

中图分类号:

TK437

王欣，张红光，姚宝峰，孙晓娜，雷艳，王道静，白小磊，葛蕴珊. 天然气混氢发动机稀燃极限影响因素试验研究[J]. 兵工学报, 2012, 33(7): 776-781.

WANG Xin, ZHANG Hong-guang, YAO Bao-feng, SUN Xiao-na, LEI Yan,. Experimental Study on the Factors Affecting Lean Combustion Limit of S.I. Hydrogen-Natural Gas Engine[J]. Acta Armamentarii, 2012, 33(7): 776-781.

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天然气混氢发动机稀燃极限影响因素试验研究

Experimental Study on the Factors Affecting Lean Combustion Limit of S.I. Hydrogen-Natural Gas Engine

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