NUMERICAL SIMULATION OF AIRFLOW DISTRIBUTION AND STRUCTURAL OPTIMIZATION IN AN ELECTROSTATIC OIL MIST PURIFIER

LI Jian; WU Chunmao; QI Zhanfeng

doi:10.13205/j.hjgc.202308026

Volume 41 Issue 8

Aug. 2023

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LI Jian, WU Chunmao, QI Zhanfeng. NUMERICAL SIMULATION OF AIRFLOW DISTRIBUTION AND STRUCTURAL OPTIMIZATION IN AN ELECTROSTATIC OIL MIST PURIFIER[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(8): 202-208. doi: 10.13205/j.hjgc.202308026

Citation:

LI Jian, WU Chunmao, QI Zhanfeng. NUMERICAL SIMULATION OF AIRFLOW DISTRIBUTION AND STRUCTURAL OPTIMIZATION IN AN ELECTROSTATIC OIL MIST PURIFIER[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(8): 202-208. doi: 10.13205/j.hjgc.202308026

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NUMERICAL SIMULATION OF AIRFLOW DISTRIBUTION AND STRUCTURAL OPTIMIZATION IN AN ELECTROSTATIC OIL MIST PURIFIER

doi: 10.13205/j.hjgc.202308026

College of Mechanical Engineering, Dalian University, Dalian 116622, China

Received Date: 2022-11-29
Available Online: 2023-11-15

Abstract

Abstract

The uniform airflow distribution greatly influences the purification efficiency of compact electrostatic oil mist purifiers. In order to obtain the local airflow characteristics, the internal flow field of the electrostatic oil mist purifier with an air volume of 3500 m³/h was simulated numerically by CFD, the bias current phenomenon inside the purifier was discovered, and the main influencing factors causing these nonuniform airflow were identified in the original structure. To solve this problem, structure optimization schemes were proposed to improve the airflow distribution uniformity, thereby improving the purification efficiency of the purifier. The simulation and experimental results indicated that compared with the original structure, the airflow distribution uniformity was significantly improved by the structure optimization, and the relative RSME of airflow velocity decreased from 0.44 to 0.14. Then, the experimental results showed that the purifier efficiency with the optimized structure increased from 87.8% to 92.4%, while the total pressure drop only increased by 30 Pa. It was proved feasible to increase the purifier efficiency by improving the airflow distribution uniformity, which had certain reference significance for the design improvement and optimization of the compact electrostatic oil mist purifiers.
- electrostatic oil mist purifier,
- airflow distribution,
- numerical simulation,
- purification efficiency,
- structural optimization

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References(21)

References

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