Journal of South China University of Technology (Natural Science Edition) ›› 2008, Vol. 36 ›› Issue (6): 114-117,123.

• Power & Electrical Engineering • Previous Articles     Next Articles

Numerical Simulation of Plume Transmission and Dispersion in Orimulsion-Fired Power Plant

Liang Ping1  Liu Liang-liang1  Long Xin-feng2   

  1. 1. School of Electric Power, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2007-10-10 Revised:2007-12-05 Online:2008-06-25 Published:2008-06-25
  • Contact: 梁平（1953-），男，博士，副教授，主要从事计算流体力学及新能源发电技术研究， E-mail:mrpliang@126.com
  • About author:梁平（1953-），男，博士，副教授，主要从事计算流体力学及新能源发电技术研究，
  • Supported by:

    广东省自然科学基金资助项目（05006518）

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Abstract:

It is necessary to analyze the environmental quality surrounding the orimulsion-fired power plant due to the high temperature and high SO2 concentration of the emissions. In this paper, the computational fluid dynamics （CFD） software is used to simulate the plume transmission and dispersion of high-chimney emission point-source in an orimulsion-fired power plant. Then, the Fluent software is employed to analyze the plume transmission and dispersion rules at different wind velocities and turbulence intensities according to the typical average meteorological data of Zhanjiang City, and to calculate two important factors, namely, the maximum concentration on the ground along the plume axis and the plume rising height along the plume axis. Calculated results show that, when the air velocity is 3 m/s and the turbulence is 10% or the air velocity is 6 m/s and the turbulence is 5%, the calculated maximum SO2concentration on the ground is 820 or 440μg/m3, which accords well with the theoretical and empirical data. It is thus concluded that the proposed model is effective.

Key words: orimulsion-fired power plant, plume, transmission, dispersion, numerical simulation