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CN 34-1054/N

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Study on the influence of radiation of particle groups on arc volt-ampere characteristics

  • 1.

    Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China

  • 2.

    Thermal Power Technology Key Laboratory, Wuhan Second Ship Design Research Institute, Wuhan 430025, China

Cite this:
https://doi.org/10.3969/j.issn.0253-2778.2020.04.008
  • Received Date: 13 December 2018
  • Accepted Date: 06 May 2019
  • Rev Recd Date: 06 May 2019
  • Publish Date: 30 April 2020
    Abstract

  • Abstract

    When particle groups are injected directly into a plasma torch, the influence of the particle groups on the arc plasma is an important factor in the design of the plasma torch. This paper introduces the P-1 radiation model, which is used to describe the radiation between particle groups. Combined with the P-1 radiation model, the Elenbass-Heller equation is modified and then solved to probe into the radiation influence of the graphite particle groups on the volt-ampere characteristics of the arc plasma. The results show that the radiation of the graphite particle groups increases the heat conductivity of the arc, the arc is compressed by cooling down, and the intensity of the electric field of the arc increases. At the same time, the effect of particle group radiation on the intensity of the electric field is more evident along with the larger arc channel radius. Moreover, the effect on the argon arc plasma is much larger than its effect on the hydrogen arc plasma. It is recognized by the calculation of the particle radiation that the particle group radiation mainly plays an important role in the location near the wall. At the edge of the cold wall, the particle group radiation functions as net absorption, and the heat transferred to the cold wall is reduced.

    Abstract

    When particle groups are injected directly into a plasma torch, the influence of the particle groups on the arc plasma is an important factor in the design of the plasma torch. This paper introduces the P-1 radiation model, which is used to describe the radiation between particle groups. Combined with the P-1 radiation model, the Elenbass-Heller equation is modified and then solved to probe into the radiation influence of the graphite particle groups on the volt-ampere characteristics of the arc plasma. The results show that the radiation of the graphite particle groups increases the heat conductivity of the arc, the arc is compressed by cooling down, and the intensity of the electric field of the arc increases. At the same time, the effect of particle group radiation on the intensity of the electric field is more evident along with the larger arc channel radius. Moreover, the effect on the argon arc plasma is much larger than its effect on the hydrogen arc plasma. It is recognized by the calculation of the particle radiation that the particle group radiation mainly plays an important role in the location near the wall. At the edge of the cold wall, the particle group radiation functions as net absorption, and the heat transferred to the cold wall is reduced.
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    • References(17)
  • [1]
    YANG K, RONG J, FENG J, et al. Excellent wear resistance of plasma-sprayed amorphous Al2O3-Y3Al5O12 ceramic coating[J]. Surface and Coatings Technology, 2017, 326: 96-102.
    [2]
    ZAVAREH M A, SARHAN A A D M, RAZAK B B A, et al. Plasma thermal spray of ceramic oxide coating on carbon steel with enhanced wear and corrosion resistance for oil and gas applications[J]. Ceramics International, 2014, 40(9): 14267-14277.
    [3]
    PRAVEEN K, SIVAKUMAR S, ANANTHAPAD-MANABHAN P, et al. Lanthanum cerate thermal barrier coatings generated from thermal plasma synthesized powders[J]. Ceramics International, 2018, 44(6): 6417-6425.
    [4]
    GOMEZ E, RANI D A, CHEESEMAN C, et al. Thermal plasma technology for the treatment of wastes: A critical review[J]. Journal of Hazardous Materials, 2009, 161(2-3): 614-626.
    [5]
    KARPENKO E, MESSERLE V, USTIMENKO A. Plasma-aided solid fuel combustion[J]. Proceedings of the Combustion Institute, 2007, 31(2): 3353-3360.
    [6]
    MA J, SU B, WEN G, et al. Pyrolysis of pulverized coal to acetylene in magnetically rotating hydrogen plasma reactor[J]. Fuel Processing Technology, 2017, 167: 721-729.
    [7]
    MELLOR I, GRAINGER L, RAO K, et al. 4-Titanium Powder Production via the Metalysis Process[M]// Titanium Powder Metallurgy: Science, Technology and Applications. New York: Elsevier, 2015: 51-67.
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    CHEN X, CHEN X M. Drag on a metallic or nonmetallic particle exposed to a rarefied plasma flow[J]. Plasma Chemistry and Plasma Processing, 1989, 9(3): 387-408.
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    CHEN X, PFENDER E. Heat transfer to a single particle exposed to a thermal plasma[J]. Plasma Chemistry and Plasma Processing, 1982, 2(2): 185-212.
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    CHEN X, CHYOU Y, LEE Y C, et al. Heat transfer to a particle under plasma conditions with vapor contamination from the particle[J]. Plasma Chemistry and Plasma Processing, 1985, 5(2): 119-141.
    [11]
    WAN Y, PRASAD V, WANG G X, et al. Model and powder particle heating, melting, resolidification, and evaporation in plasma spraying processes[J]. Journal of Heat Transfer, 1999, 121(3): 691-699.
    [12]
    PROULX P, MOSTAGHIMI J, BOULOS M I. Plasma-particle interaction effects in induction plasma modeling under dense loading conditions[J]. International Journal of Heat and Mass Transfer, 1985, 28(7): 1327-1336.
    [13]
    LIAO M R, LI H, XIA W D. Approximate explicit analytic solution of the Elenbaas-Heller equation[J]. Journal of Applied Physics, 2016, 120(6): 063304.
    [14]
    SAZHIN S, SAZHINA E, FALTSI-SARAVELOU O, et al. The P-1 model for thermal radiation transfer: advantages and limitations[J]. Fuel, 1996, 75(3): 289-294.
    [15]
    CHEN X. Particle heating in a thermal plasma[J]. Pure and Applied Chemistry, 1988, 60(5): 651-662.
    [16]
    SIEGEL R, HOWELL J R. Thermal Radiation Heat Transfer[M]. Washington D.C.: Hemisphere Publishing Corporation, 1992.
    [17]
    REYNOLDS Q. Interaction of dust with the DC plasma arc: A computational modelling investigation[J]. Journal of the Southern African Institute of Mining and Metallurgy, 2015, 115(5): 395-407.)
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    [1]
    YANG K, RONG J, FENG J, et al. Excellent wear resistance of plasma-sprayed amorphous Al2O3-Y3Al5O12 ceramic coating[J]. Surface and Coatings Technology, 2017, 326: 96-102.
    [2]
    ZAVAREH M A, SARHAN A A D M, RAZAK B B A, et al. Plasma thermal spray of ceramic oxide coating on carbon steel with enhanced wear and corrosion resistance for oil and gas applications[J]. Ceramics International, 2014, 40(9): 14267-14277.
    [3]
    PRAVEEN K, SIVAKUMAR S, ANANTHAPAD-MANABHAN P, et al. Lanthanum cerate thermal barrier coatings generated from thermal plasma synthesized powders[J]. Ceramics International, 2018, 44(6): 6417-6425.
    [4]
    GOMEZ E, RANI D A, CHEESEMAN C, et al. Thermal plasma technology for the treatment of wastes: A critical review[J]. Journal of Hazardous Materials, 2009, 161(2-3): 614-626.
    [5]
    KARPENKO E, MESSERLE V, USTIMENKO A. Plasma-aided solid fuel combustion[J]. Proceedings of the Combustion Institute, 2007, 31(2): 3353-3360.
    [6]
    MA J, SU B, WEN G, et al. Pyrolysis of pulverized coal to acetylene in magnetically rotating hydrogen plasma reactor[J]. Fuel Processing Technology, 2017, 167: 721-729.
    [7]
    MELLOR I, GRAINGER L, RAO K, et al. 4-Titanium Powder Production via the Metalysis Process[M]// Titanium Powder Metallurgy: Science, Technology and Applications. New York: Elsevier, 2015: 51-67.
    [8]
    CHEN X, CHEN X M. Drag on a metallic or nonmetallic particle exposed to a rarefied plasma flow[J]. Plasma Chemistry and Plasma Processing, 1989, 9(3): 387-408.
    [9]
    CHEN X, PFENDER E. Heat transfer to a single particle exposed to a thermal plasma[J]. Plasma Chemistry and Plasma Processing, 1982, 2(2): 185-212.
    [10]
    CHEN X, CHYOU Y, LEE Y C, et al. Heat transfer to a particle under plasma conditions with vapor contamination from the particle[J]. Plasma Chemistry and Plasma Processing, 1985, 5(2): 119-141.
    [11]
    WAN Y, PRASAD V, WANG G X, et al. Model and powder particle heating, melting, resolidification, and evaporation in plasma spraying processes[J]. Journal of Heat Transfer, 1999, 121(3): 691-699.
    [12]
    PROULX P, MOSTAGHIMI J, BOULOS M I. Plasma-particle interaction effects in induction plasma modeling under dense loading conditions[J]. International Journal of Heat and Mass Transfer, 1985, 28(7): 1327-1336.
    [13]
    LIAO M R, LI H, XIA W D. Approximate explicit analytic solution of the Elenbaas-Heller equation[J]. Journal of Applied Physics, 2016, 120(6): 063304.
    [14]
    SAZHIN S, SAZHINA E, FALTSI-SARAVELOU O, et al. The P-1 model for thermal radiation transfer: advantages and limitations[J]. Fuel, 1996, 75(3): 289-294.
    [15]
    CHEN X. Particle heating in a thermal plasma[J]. Pure and Applied Chemistry, 1988, 60(5): 651-662.
    [16]
    SIEGEL R, HOWELL J R. Thermal Radiation Heat Transfer[M]. Washington D.C.: Hemisphere Publishing Corporation, 1992.
    [17]
    REYNOLDS Q. Interaction of dust with the DC plasma arc: A computational modelling investigation[J]. Journal of the Southern African Institute of Mining and Metallurgy, 2015, 115(5): 395-407.)
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