[an error occurred while processing this directive]

高等学校化学研究 ›› 2004, Vol. 20 ›› Issue (4): 446-451.

• Articles • 上一篇    下一篇

CFD Simulation of a Hydrogen/Argon Plasma Jet Reactor for Coal Pyrolysis

CHEN H. G.1,2, XIE K. C.1   

  1. 1. Taiyuan University of Technology, Taiyuan 030024, P. R. China;
    2. City University, London, EC1V 0HB, UK
  • 收稿日期:2004-06-03 出版日期:2004-08-24 发布日期:2011-08-06

CFD Simulation of a Hydrogen/Argon Plasma Jet Reactor for Coal Pyrolysis

CHEN H. G.1,2, XIE K. C.1   

  1. 1. Taiyuan University of Technology, Taiyuan 030024, P. R. China;
    2. City University, London, EC1V 0HB, UK
  • Received:2004-06-03 Online:2004-08-24 Published:2011-08-06

PDF (PC)

摘要： A Computational Fluid Dynamics (CFD) model was formulated for DC arc hydrogen/argon plasma jet reactors used in the process of the thermal H2/Ar plasma pyrolysis of coal to acetylene.In this model, fluid flow, convective heat transfer and conjugate heat conductivity are considered simultaneously.The error caused by estimating the inner-wall temperature of a reactor is avoided.The thermodynamic and transport properties of the hydrogen/argon mixture plasma system, which are usually expressed by a set of discrete dats, are fitted into expressions that can be easily implemented in the program.The effects of the turbulence are modeled by two standard k-s equations.The temperature field and velocity field in the plasma jet reactor were calculated by employing SIMPLEST algorithm.The knowledge and insight obtained are useful for the design improvement and scale-up of plasma reactors.

关键词: Plasma, Reactor, Computational fluid dynamics, Coal pyrolysis

Abstract: A Computational Fluid Dynamics (CFD) model was formulated for DC arc hydrogen/argon plasma jet reactors used in the process of the thermal H2/Ar plasma pyrolysis of coal to acetylene.In this model, fluid flow, convective heat transfer and conjugate heat conductivity are considered simultaneously.The error caused by estimating the inner-wall temperature of a reactor is avoided.The thermodynamic and transport properties of the hydrogen/argon mixture plasma system, which are usually expressed by a set of discrete dats, are fitted into expressions that can be easily implemented in the program.The effects of the turbulence are modeled by two standard k-s equations.The temperature field and velocity field in the plasma jet reactor were calculated by employing SIMPLEST algorithm.The knowledge and insight obtained are useful for the design improvement and scale-up of plasma reactors.

Key words: Plasma, Reactor, Computational fluid dynamics, Coal pyrolysis