KEPCO Journal on Electric Power and Energy

Korea Electric Power Corporation (한국전력공사)
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Flow Analysis of the Environmental Chemical Reaction Processes at Power Plant in accordance with the Baffle Structure

  • Jeong, Yeon-Tae (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Hur, Kwang-Beom (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Gil, Joon-Woo (KEPCO Research Institute, Korea Electric Power Corporation)
  • Received : 2016.04.27
  • Accepted : 2016.08.10
  • Published : 2016.09.30
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Abstract

In the area of environmental chemistry of power plant, flow analysis of the reactor with built-in impeller is a very important part from the perspective of the improvement of the efficiency of the entire process. As a wide range of methods are being proposed for the analysis of the flow pattern within the reactor, this study analyzed the flow within the reactor according to the baffle structure (height) installed on the internal wall of the reactor in order to improve the reaction efficiency through the inducing of the up and down stirring with the reactor. As the results of the execution of the flow analysis for each of a diverse range of cases by utilizing the Computational Fluid Dynamics (CFD) method, it was possible to confirm that the flow is markdely improved by inducing the up and down stirring among the reactants within the reactor if the baffle is elevated to the level below the water surface. In particular, as the results of the analysis of the general cases in which the baffle is elevated all 4 steps and the cases in which the baffle is elevated only 2 steps, elevating the baffle only 2 steps achieve the same effect as the elevating of the baffle by 4 steps. Therefore, it was possible to expect to improve the efficiency with out the need to increase the use of electric power substantially if the outcomes of this study is applied to the actual sites of power plants in the future.

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References

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