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ISSN 打印: 2150-3621

ISSN 在线: 2150-363X

SJR: 0.597 SNIP: 1.456 CiteScore™:: 3.7 H-Index: 18

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COMPUTATIONAL EVALUATION OF WALL RINGS IN WET FLUE-GAS DESULFURIZATION PLANTS

卷 10, 册 1-4, 2009, pp. 15-36
DOI: 10.1615/InterJEnerCleanEnv.v10.i1-4.20
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摘要

A wet flue-gas desulfurization plant was simulated using a finite-volume commercial computational fluid dynamics (CFD) code with some extensions. An Eulerian model was used to model the gas phase, while the slurry was simulated using a Lagrangian approach. A mathematical model was formulated and implemented to simulate the SO2 absorption by the slurry droplets, taking into account the influence of the Reynolds and Schmidt numbers and the temperature. The influence of the mist eliminators was accounted for by introducing a pressure loss which is dependent on the magnitude of the axial velocity. The results from the model are in good agreement with the measurements provided by the plant operators (velocity contours at the absorber entrance and contours of sulfur dioxide at the absorber outlet). The effect on the overall absorption of installing peripheral wall rings was evaluated, resulting in an efficiency improvement of about four percentage points, but penalizing the global pressure loss by about 8%, depending on the operating conditions. A wide-ranging parametric study was carried out, varying physical parameters, such as operating conditions; numerical parameters, such as the mesh size and the wall-droplet interaction; and geometrical designs, such as the wall ring size.

对本文的引用
  1. Zhuang Zhuokai, Sun Chenglang, Zhao Nan, Wang Haiqiang, Wu Zhongbiao, Numerical simulation of NO2absorption using sodium sulfite in a spray tower, Journal of Chemical Technology & Biotechnology, 91, 4, 2016. Crossref

  2. Maheswari Chenniappan, Krishnamurthy Kasilingam, Parameshwaran Rathinasamy, Modeling and experimental analysis of packed column for SO2 emission control process, Atmospheric Pollution Research, 5, 3, 2014. Crossref

  3. Deng Qingbo, Ran Jingyu, Niu Juntian, Yang Zhongqing, Pu Ge, Yang Lin, Numerical Study on Flow Field Distribution Regularities in Wet Gas Desulfurization Tower Changing Inlet Gas/Liquid Feature Parameters, Journal of Energy Resources Technology, 143, 2, 2021. Crossref

  4. Qu Jiangyuan, Qi Nana, Li Zhen, Zhang Kai, Wang Pengcheng, Li Lifeng, Mass transfer process intensification for SO2 absorption in a commercial-scale wet flue gas desulfurization scrubber, Chemical Engineering and Processing - Process Intensification, 166, 2021. Crossref

  5. Qu Jiangyuan, Qi Nana, Zhang Kai, Li Lifeng, Wang Pengcheng, Wet flue gas desulfurization performance of 330 MW coal-fired power unit based on computational fluid dynamics region identification of flow pattern and transfer process, Chinese Journal of Chemical Engineering, 29, 2021. Crossref

  6. Singh Shreyas, Tyagi R K, Design and analysis of Microcontroller based air scrubber using ANSYS CFD, Journal of Physics: Conference Series, 2178, 1, 2022. Crossref

  7. Li Ling, Zhang Buting, Zhu Ping, Yu Liangying, Zhao Guangjin, Li Min, Wang Hecen, Structure Optimization Research Based on Numerical Simulation of Flow Field in Ammonia-Based Wet Sintering Flue Gas Desulfurization, Energies, 15, 20, 2022. Crossref

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