E3S Web Conf.
Volume 165, 20202020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|Number of page(s)||5|
|Section||Energy Engineering and Energy Technology|
|Published online||01 May 2020|
CFD Simulation Research on Agglomeration between Coal-fired Ash Fine Particulate and Atomized Droplets
1 China Ship Development and Design Center, Wuhan, Hubei, 430064, P.R. China
2 School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P.R. China
* Corresponding author’s e-mail: email@example.com
In this paper, a collision model between atomized droplets of agglomeration solution and particles is established. On this basis, the effects of flue gas temperature, atomized droplet diameter and other factors on the particle agglomeration process are studied. In addition, the evaporation model of agglomeration solution in the flue of a power plant is established for the coal-fired unit of power plant. Through CFD software, the variation of flow field velocity, temperature and pressure in the flue is simulated to determine whether the chemical agglomeration technology has negative impact on the actual operating conditions of the power plant. The simulation results show that the velocity and pressure of the flow field in the flue have no obvious change after the agglomerating agent is injected. Besides, the temperature drop of about 7°C. The droplets evaporate completely at a distance of 7-8 m after spraying. The evaporation time of droplets is within 1.6 s.
© The Authors, published by EDP Sciences, 2020
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