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The International Symposium on Heating, Ventilation and Air Conditioning

ISHVAC 2019: Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019) pp 787–795Cite as

Comparisons of the Different Discharge Performances and the Effect of Long-Term Loading with the Liquid Aerosol on Electret Media

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Part of the book series: Environmental Science and Engineering ((ENVENG))

Abstract

To determine the classification of electret filters, EN 779 and ISO 16890 have taken the IPA immersion and fumigation as the discharging method, respectively. This study compared the efficiency of electret filtration media discharged by the method of EN 779 and ISO 16890, respectively. It was found that the discharged efficiency of electret media using the method specified in ISO 16890 was lower than those discharged by the discharging method of EN 779. By comparing the discharged efficiency of electret media with the efficiency of uncharged samples, results showed that the discharged efficiency of electret media treated by IPA fumigation was close to the uncharged efficiency. Moreover, the loading experiment that the electret medium was challenged by the liquid DEHS aerosol was conducted to evaluate the long-term loading performance of electret media. It was found that the efficiency of electret sample gradually declined from 92 to 30%.

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Acknowledgements

The project has been supported by the China National Key R&D Program ‘Energy-saving design and key technical equipment development for clean air-conditioning plants’ (Grant No. 2018YFC0705202).

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Authors and Affiliations

  1. School of Mechanical Engineering, Tongji University, Shanghai, China

    Yongxiang Wang, Zhongping Lin & Wanyi Zhang

Authors
  1. Yongxiang Wang
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  2. Zhongping Lin
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  3. Wanyi Zhang
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Corresponding author

Correspondence to Zhongping Lin .

Editor information

Editors and Affiliations

  1. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Zhaojun Wang

  2. Department of Building Science, School of Architecture, Tsinghua University, Beijing, China

    Yingxin Zhu

  3. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Fang Wang

  4. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Peng Wang

  5. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Chao Shen

  6. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Jing Liu

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Wang, Y., Lin, Z., Zhang, W. (2020). Comparisons of the Different Discharge Performances and the Effect of Long-Term Loading with the Liquid Aerosol on Electret Media. In: Wang, Z., Zhu, Y., Wang, F., Wang, P., Shen, C., Liu, J. (eds) Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019). ISHVAC 2019. Environmental Science and Engineering(). Springer, Singapore. https://doi.org/10.1007/978-981-13-9520-8_81

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