Calculation of diffusion coefficients in air-metal thermal plasmas

被引:20
|
作者
Cressault, Y. [1 ,2 ]
Gleizes, A. [1 ,2 ]
机构
[1] Univ Toulouse, UPS, INPT, LAPLACE Lab Plasma & Convers Energie, F-31062 Toulouse 9, France
[2] CNRS, LAPLACE, F-31062 Toulouse 9, France
关键词
TRANSPORT-COEFFICIENTS; EQUILIBRIUM MIXTURES; ARGON; GASES; NITROGEN; HELIUM; ARCS;
D O I
10.1088/0022-3727/43/43/434006
中图分类号
O59 [应用物理学];
学科分类号
摘要
This paper presents the combined diffusion coefficients of metal vapours (silver, copper and iron) in air thermal plasmas for temperatures ranging from 300 to 30 000 K. The theory used to calculate these coefficients is remembered and validated by comparison with the literature values in several cases such as Ar-He, Ar-Cu and N(2)-O(2) mixtures. The results are discussed showing the influences of the metal concentration, of the vapour nature and of the pressure. The results show rather similar behaviour for the three metals. The maximum values of the combined ordinary diffusion coefficient in the evolution with temperature are obtained for temperature around 10 000 K but this peak is shifted to the highest temperatures when the metal proportion increases. Another result shows that the diffusion coefficient decreases when pressure increases.
引用
收藏
页数:6
相关论文
共 50 条
  • [1] Calculation and application of combined diffusion coefficients in thermal plasmas
    Anthony B. Murphy
    Scientific Reports, 4
  • [2] Calculation and application of combined diffusion coefficients in thermal plasmas
    Murphy, Anthony B.
    SCIENTIFIC REPORTS, 2014, 4
  • [3] Calculation of air-water vapor mixtures thermal plasmas transport coefficients
    Kagone, A. K.
    Koalaga, Z.
    Zougmore, F.
    1ST INTERNATIONAL SYMPOSIUM ON ELECTRICAL ARC AND THERMAL PLASMAS IN AFRICA (ISAPA), 2012, 29
  • [4] CALCULATION OF TRANSPORT-COEFFICIENTS OF AIR PLASMAS
    BACRI, J
    RAFFANEL, S
    PLASMA CHEMISTRY AND PLASMA PROCESSING, 1989, 9 (01) : 133 - 154
  • [5] Air-metal hydride battery construction and evaluation
    Sakai, T
    Iwaki, T
    Ye, Z
    Noreus, D
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (12) : 4040 - 4045
  • [6] Stochastic determination of thermal reaction rate coefficients for air plasmas
    del Val, Anabel
    Chazot, Olivier
    JOURNAL OF CHEMICAL PHYSICS, 2023, 159 (06):
  • [7] Study of simple plane wave generator with an air-metal barrier
    Wei XIONG
    Xianfeng ZHANG
    Zhongwei GUAN
    Yong HE
    Liang QIAO
    Lili GUO
    Defence Technology, 2014, 10 (02) : 190 - 197
  • [8] Air-metal hydride secondary battery with long cycle life
    Chartouni, D
    Kuriyama, N
    Kiyobayashi, T
    Chen, J
    JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 330 : 766 - 770
  • [9] STUDY OF SIMPLE PLANE WAVE GENERATOR WITH AN AIR-METAL BARRIER
    Xiong, Wei
    Zhang, Xiang-feng
    Guan, Zhong-wei
    He, Yong
    Qiao, Liang
    Guo, Li-li
    28TH INTERNATIONAL SYMPOSIUM ON BALLISTICS, VOLS 1 AND 2, 2014, : 108 - 111
  • [10] Study of simple plane wave generator with an air-metal barrier
    Xiong, Wei
    Zhang, Xian-feng
    Guan, Zhong-wei
    He, Yong
    Qiao, Liang
    Guo, Li-li
    DEFENCE TECHNOLOGY, 2014, 10 (02): : 190 - 197