A COMPARATIVE STUDY ON FREE JET AND CONFINED JET DIFFUSION FLAMES OF LIQUID ETHANOL FROM SMALL NOZZLES

被引：30
|
作者：
Gan, Y. H. [1 ]
Xu, J. L. [2 ]
Yan, Y. Y. [3 ]
Wang, M. [1 ]
Luo, Y. L. [1 ]
Yang, Z. L. [1 ]
机构：
[1] S China Univ Technol, Sch Elect Power, Guangzhou 510640, Guangdong, Peoples R China
[2] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing, Peoples R China
[3] Univ Nottingham, Fac Engn, Energy & Sustainabil Res Div, Nottingham NG7 2RD, England
来源：
COMBUSTION SCIENCE AND TECHNOLOGY | 2014年 / 186卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Confined jet; Flame length; Flame temperature; Free jet; Microcombustion system; ENTROPY GENERATION; MICRO-COMBUSTOR;
D O I：
10.1080/00102202.2013.851077
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A combined experimental and numerical study has been conducted to compare the characteristics of free jet flames and confined jet flames from a small ceramic tube burner using liquid ethanol as fuel. The visualization results show that the flame shapes between the free jet flame and the confined jet flame have some differences. An obvious liquid-vapor interface has been found for the confined jet. Numerical results of flame lengths and flame temperature show reasonable agreement with the experimental data within the present parameter ranges. At the same liquid ethanol flow rate, the flame length of confine jet is smaller than that of free jet. For the confined jet, the heat loss is smaller; the flame temperature is higher, so the enhanced diffusion results in a shorter length.
引用
收藏
页码：120 / 138
页数：19
相关论文
共 50 条
  • [31] Solution of a Variational Problem in Application to the Determination of the Optimal Trajectory of a Liquid Jet Flowing from Nozzles of a Jet Bit.
    Agaev, S.G.
    Agaeva, S.E.
    1978, (04): : 45 - 48
  • [32] Comparative study on flow and heat transfer characteristics of swirling impingement jet issuing from different nozzles
    Yang, Tao
    Sun, Yanhua
    Xu, Liang
    Xi, Lei
    Gao, Jianmin
    Li, Yunlong
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2023, 184
  • [33] Experimental study on the hazards of high-pressure hydrogen jet diffusion flames
    Mogi, Toshio
    Horiguchi, Sadashige
    JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES, 2009, 22 (01) : 45 - 51
  • [34] A computational study of combustion and extinction of opposed-jet syngas diffusion flames
    Shih, Hsin-Yi
    Hsu, Jou-Rong
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (24) : 15868 - 15879
  • [35] Experimental investigation of flame length of buoyancy-controlled jet flames from inclined rectangular nozzles
    Tao, Changfa
    Shen, Yan
    Ren, Jie
    Zhi, Youran
    Zong, Ruowen
    EXPERIMENTAL HEAT TRANSFER, 2019, 32 (03) : 239 - 250
  • [36] DYNAMIC STABILIZATION ZONE STRUCTURE OF JET DIFFUSION FLAMES FROM LIFTOFF TO BLOWOUT
    CHEN, TH
    GOSS, LP
    TALLEY, DG
    MIKOLAITIS, DW
    JOURNAL OF PROPULSION AND POWER, 1992, 8 (03) : 548 - 552
  • [37] MEASUREMENTS OF OXIDES OF NITROGEN EMISSIONS FROM TURBULENT PROPANE JET DIFFUSION FLAMES
    TURNS, SR
    LOVETT, JA
    COMBUSTION SCIENCE AND TECHNOLOGY, 1989, 66 (4-6) : 233 - 249
  • [38] Downstream similarity of thermal structure in plumes from jet diffusion flames in a crossflow
    Poudenx, P
    Howell, L
    Wilson, DJ
    Kostiuk, LW
    COMBUSTION SCIENCE AND TECHNOLOGY, 2004, 176 (03) : 409 - 435
  • [39] A comparative study of the port geometrical effects on sharp corners' jet triple flames
    Kamal, M. M.
    EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2013, 51 : 149 - 163
  • [40] Comparative Study on Ejection Phenomena of Droplets from Electro-Hydrodynamic Jet by Hydrophobic and Hydrophilic Coatings of Nozzles
    Kim, Yong-Jae
    Choi, Jaeyong
    Son, Sang Uk
    Lee, Sukhan
    Nguyen, Xuan Hung
    Nguyen, Vu Dat
    Byun, Doyoung
    Ko, Han Seo
    JAPANESE JOURNAL OF APPLIED PHYSICS, 2010, 49 (06) : 0602171 - 0602173
12345