2025-4-23- Thursday
HomeIntroductionEditorial boardContact usChinese
Home > Archive>Volume 51, Issue 11, 2023 >1775-1782. DOI:10.11908/j.issn.0253-374x.22098
PDF HTML XML Export Cite reminder
Homogeneous Charge Compression Ignition Combustion Characteristics of n-Heptane in Pure Oxygen Atmosphere
CSTR:
[cstr]
Author:
Affiliation:

1.College of Mechanical and Vehicle Engineering， Chongqing University， Chongqing 400044， China;2.State Key Laboratory of Mechanical Transmissions， Chongqing University， Chongqing 400044， China;3.United Automotive Electronic Systems Co.， Ltd.， Shanghai 201206， China;4.School of Automotive Studies， Tongji University， Shanghai 201804， China

Clc Number:

TK427

  • Article
    • | |
  • Metrics
    • |
  • Reference [16]
    • |
  • Related [20]
    • | | |
  • Comments
    Abstract:

    Based on a two-cylinder diesel engine and a self-designed pure oxygen intake system，the effect of different intake oxygen volume fractions on the combustion process and stability of homogeneous charge compression ignition of n-heptane were investigated.The experimental results show that， with the decreasing volume fraction of oxygen and increasing volume fraction of carbon dioxide in the mixture， the average specific heat capacity in the cylinder is increased， which leads to the maximum combustion temperature in the cylinder is decreased， the corresponding peak phase is delayed， the combustion start point is delayed， the peak heat release rate is decreased， and the thermal efficiency is reduced.Meanwhile， it was found that with the increasing of carbon dioxide volume fraction， the temperature in the cylinder decreased， which led to the strengthening of the combustion cycle instability. The above phenomena indicate that the higher volume fraction of carbon dioxide can effectively inhibit the homogeneous charge compression ignition of n-heptane under pure oxygen atmosphere.Moreover， the interval duration of negative temperature coefficient of n-heptane homogeneous charge compression ignition is significantly shortened in pure oxygen atmosphere.

    Reference
    [1] ALAGUMALAI A. Internal combustion engines: progress and prospects [J]. Renewable and Sustainable Energy Reviews, 2014, 38: 561.
    [2] 俎琳琳, 侯玉春, 吕兴才, 等.正庚烷HCCI燃烧过程的数值模拟及试验研究[J]. 内燃机工程, 2006,27(6):15.ZU Linlin, HOU Yuchun, Xingcai Lü, et al. Numerical and experimental study on HCCI combustion process of n-heptane [J]. Chinese Internal Combustion Engine Engineering, 2006,27(6):15.
    [3] 朱绍中, 常国峰, 周岳康. 进气温度对正庚烷HCCI燃烧特性影响研究[J]. 内燃机工程, 2008, 29(6):31.ZHU Shaozhong, CHANG Guofeng, ZHOU Yuekang. Influence of charge temperature on n-heptane homogeneous charge compression ignition combustion characteristics[J]. Chinese Internal Combustion Engine Engineering, 2008, 29(6):31.
    [4] 薛乐, 张春化, 王娇. 正庚烷均质压燃发动机燃烧循环变动[J]. 长安大学学报(自然科学版), 2014, 34(6):157.XUE Le, ZHANG Chunhua, WANG Jiao. Cyclical variation of an HCCI engine fuelled by n-heptane[J]. Journal of Chang’an University (Natural Science ), 2014, 34(6):157.
    [5] ZHANG C H, XUE L, WANG J. Experimental study of the influence of λ and intake temperature on combustion characteristics in a HCCI engine fueled with n-heptane[J]. Journal of the Energy Institute, 2014, 87(2):175.
    [6] WU Zhijun, KANG Zhe, DENG Jun, et al. Effect of oxygen content on n-heptane auto-ignition characteristics in a HCCI engine[J]. Applied Energy, 2016, 184:594.
    [7] BILGER R W. Zero release combustion technologies and the oxygen economy [C]// Fifth International Conference on Technologies and Combustion for a Clean Environment. Lisbon:[s.n.], 1999: 1039–1046.
    [8] KANG Z, CHEN S, WU Z, et al. Simulation study of water injection strategy in improving cycle efficiency based on a novel compression ignition oxy-fuel combustion engine [J]. SAE Int J Engines, 2018, 11(6):935.
    [9] BILGER R W, WU Z J. Carbon capture for automobiles using internal combustion Rankine cycle engines [J]. Journal of Engineering for Gas Turbines and Power, 2009, 131:034502.
    [10] WU Zhijun, YU Xiao, FU Lezhong, et al. Experimental study of the effect of water injection on the cycle performance of an internal combustion Rankine cycle engine [J]. Proc IMechE Part D: Journal of Automotive Engineering, 2014, 288(5): 580.
    [11] YU X, WU Z, FU L, et al. Study of combustion characteristics of a quasi internal combustion Rankine cycle engine [J]. SAE Technical Paper, 2013(1): 2698.
    [12] 于潇, 付乐中, 邓俊, 等.喷水温度对内燃兰金循环燃烧过程影响的试验研究[J].工程热物理学报,2014,35(1):200.YU Xiao, FU Lezhong, DENG Jun, et al. Experimental studyof the effect of water injection temperature on the combustion process of ICRC cycle [J]. Journal of Engineering Thermophysics,2014,35(1):200.
    [13] WU Zhijun, YU Xiao, FU Lezhong, et al. A high efficiency oxyfuel internal combustion engine cycle with water direct injection for waste heat recovery [J]. Energy, 2014, 70:110.
    [14] WU Z, FU L, GAO Y, et al. Thermal efficiency boundary analysis of an internal combustion Rankine cycle engine [J]. Energy, 2016, 94: 38.
    [15] 康哲, 付乐中, 邓俊, 等. 内燃兰金循环发动机爆震控制试验 [J]. 同济大学学报(自然科学版), 2017, 45(7): 1030.KANG Zhe, FU Lezhong, DENG Jun, et al. Experimental study of knock control in an internal combustion Rankine cycle engine [J]. Journal of Tongji University (Natural Science), 2017, 45(7): 1030.
    [16] ZHENG Zhaolei, YAO Mingfa. Numerical study on the chemical reaction kinetic of n-heptane for HCCI combustion process [J]. Fuel, 2006, 85(17/18):2605.
    Cited by
Get Citation

KANG Zhe, LUO Jing, FENG Shangsi, CUI Liang, DENG Jun, WU Zhijun. Homogeneous Charge Compression Ignition Combustion Characteristics of n-Heptane in Pure Oxygen Atmosphere[J].同济大学学报(自然科学版),2023,51(11):1775~1782

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:March 10,2022
  • Online: December 01,2023
Article QR Code

Youare the 63731 visitor to this site

Copyright:JOURNAL OF TONGJI UNIVERSITY     Director:The Ministry of Education    The host:Tongji university.

Address:上海市四平路1239号同济大学内    Postcode:200092    TEL:86-21-65982344     E-mail:zrxb@tongji.edu.cn

Supported byBeijing E-Tiller Technology Development Co.,Ltd.