Numerical Simulation and Optimization of the Flow Field in the SCR System

Author:

Hong Wen Peng1,Ding Hao Shu1,Huang Yue1

Affiliation:

1. Northeast Dianli University

Abstract

Software FLUENT is used to carry out the numerical simulation of SCR reactor for studying the influence of the guide plates.The results show that the flowing conditions of the flue gas in the SCR system have a significant influence upon the actual effect of the denitration reaction based on a 330MW coal-fired power plant.In order to improve the performance of the device, choosing the solution that can satisfy the requirement of design which σ (uneven speed value of the first section upon the catalyst) is less than 15%. In the optimal decision,σ is 14.4% and the system pressure drop is 134.43Pa. The appropriate arrangement of the guide plates has a positive impact on the denitration reaction and the workinglife of the catalyst.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference4 articles.

1. Chen Lianfang, Zhou Shenjie, Wang Wei. Simulation Optimization on Flow Field of SCR Denitrification Reactors[J]. Journal of Chinese Society of Power Engineering, 2010, 30(3): 224-229.

2. W. Nischt, B. Wooldridge, J. Bigalbal. Recent SCR retrofit experience on coal-fired boilers[C]. New Orleans: Power-Gen International: (1999).

3. Wang Fujun. The analysis of computational fluid dynamics—principle and application of CFD software[M]. Beijing: The Press Of Qinghua, (2004).

4. Chae, H. J., Choo, S. T., Choi, H., Nam, I. -S., Yang, H. S., & Song, S. L. (2000). Direct use of kinetic parameters for modeling and simulation of a selective catalytic reduction process. Industrial & Engineering Chemistry Research, 39, 1159.

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