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Experimental Study on the Produce of Air Negative Ions from Liquid Water Evaporation

Received: 23 February 2022    Accepted: 21 March 2022    Published: 29 March 2022
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Abstract

It was revealed that liquid water surfaces, including water drop’s surface might generate Negative Water Ions/molecules to air with probability of (1/11)8 among the water surface molecules by the author’s previous paper. Three experiments by spraying water from shower nozzle had been performed on a bathtub covered by soft plastic film with thickness of 10 mm during Aug.-Sep. 2019. The densities of negative ion (DNI) and the atmospheric parameters had been recorded. The experimental results showed that DNI increased immediately after spraying waters in orders with big variations. High DNI up to -190000 ion/cm3 were recorded under spraying water temperatures about 45°C. The sliding averaged (for 10 instant values) DNI were direct proportion to differences of saturated vapor pressure of spraying water and air vapor pressure, and increasing of relative humidity (under constant air temperature). The liquid water drops become positively charged after evaporation with negative ions. After stopping water spray DNI might keep at high level in a short time interval, then decrease gradually with vibrations by processes of mixing and water phase exchange in a cloud-fog system with -/+ air ions. These experiments proved that neutral liquid water drops may generate air negative water ions/molecules by evaporation and positive charged water drops.

Published in American Journal of Modern Physics (Volume 11, Issue 2)
DOI 10.11648/j.ajmp.20221102.11
Page(s) 13-21
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Origin of Negative Ions in Atmosphere, Water Evaporation Generate Air Negative Ions, Ion Density Variation in Water Drops System, Water Drops Generate -/+ Ions, Safely Achieving High Negative Densities

References
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  • APA Style

    Peimin Pu, Jiangping Pu, Zhengbin Zhu. (2022). Experimental Study on the Produce of Air Negative Ions from Liquid Water Evaporation. American Journal of Modern Physics, 11(2), 13-21. https://doi.org/10.11648/j.ajmp.20221102.11

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    ACS Style

    Peimin Pu; Jiangping Pu; Zhengbin Zhu. Experimental Study on the Produce of Air Negative Ions from Liquid Water Evaporation. Am. J. Mod. Phys. 2022, 11(2), 13-21. doi: 10.11648/j.ajmp.20221102.11

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    AMA Style

    Peimin Pu, Jiangping Pu, Zhengbin Zhu. Experimental Study on the Produce of Air Negative Ions from Liquid Water Evaporation. Am J Mod Phys. 2022;11(2):13-21. doi: 10.11648/j.ajmp.20221102.11

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  • @article{10.11648/j.ajmp.20221102.11,
      author = {Peimin Pu and Jiangping Pu and Zhengbin Zhu},
      title = {Experimental Study on the Produce of Air Negative Ions from Liquid Water Evaporation},
      journal = {American Journal of Modern Physics},
      volume = {11},
      number = {2},
      pages = {13-21},
      doi = {10.11648/j.ajmp.20221102.11},
      url = {https://doi.org/10.11648/j.ajmp.20221102.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmp.20221102.11},
      abstract = {It was revealed that liquid water surfaces, including water drop’s surface might generate Negative Water Ions/molecules to air with probability of (1/11)8 among the water surface molecules by the author’s previous paper. Three experiments by spraying water from shower nozzle had been performed on a bathtub covered by soft plastic film with thickness of 10 mm during Aug.-Sep. 2019. The densities of negative ion (DNI) and the atmospheric parameters had been recorded. The experimental results showed that DNI increased immediately after spraying waters in orders with big variations. High DNI up to -190000 ion/cm3 were recorded under spraying water temperatures about 45°C. The sliding averaged (for 10 instant values) DNI were direct proportion to differences of saturated vapor pressure of spraying water and air vapor pressure, and increasing of relative humidity (under constant air temperature). The liquid water drops become positively charged after evaporation with negative ions. After stopping water spray DNI might keep at high level in a short time interval, then decrease gradually with vibrations by processes of mixing and water phase exchange in a cloud-fog system with -/+ air ions. These experiments proved that neutral liquid water drops may generate air negative water ions/molecules by evaporation and positive charged water drops.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Experimental Study on the Produce of Air Negative Ions from Liquid Water Evaporation
    AU  - Peimin Pu
    AU  - Jiangping Pu
    AU  - Zhengbin Zhu
    Y1  - 2022/03/29
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ajmp.20221102.11
    DO  - 10.11648/j.ajmp.20221102.11
    T2  - American Journal of Modern Physics
    JF  - American Journal of Modern Physics
    JO  - American Journal of Modern Physics
    SP  - 13
    EP  - 21
    PB  - Science Publishing Group
    SN  - 2326-8891
    UR  - https://doi.org/10.11648/j.ajmp.20221102.11
    AB  - It was revealed that liquid water surfaces, including water drop’s surface might generate Negative Water Ions/molecules to air with probability of (1/11)8 among the water surface molecules by the author’s previous paper. Three experiments by spraying water from shower nozzle had been performed on a bathtub covered by soft plastic film with thickness of 10 mm during Aug.-Sep. 2019. The densities of negative ion (DNI) and the atmospheric parameters had been recorded. The experimental results showed that DNI increased immediately after spraying waters in orders with big variations. High DNI up to -190000 ion/cm3 were recorded under spraying water temperatures about 45°C. The sliding averaged (for 10 instant values) DNI were direct proportion to differences of saturated vapor pressure of spraying water and air vapor pressure, and increasing of relative humidity (under constant air temperature). The liquid water drops become positively charged after evaporation with negative ions. After stopping water spray DNI might keep at high level in a short time interval, then decrease gradually with vibrations by processes of mixing and water phase exchange in a cloud-fog system with -/+ air ions. These experiments proved that neutral liquid water drops may generate air negative water ions/molecules by evaporation and positive charged water drops.
    VL  - 11
    IS  - 2
    ER  - 

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Author Information
  • Cloud Water Engineering Inc. (CWEI), Nanjing, China; Key Laboratory for Cloud, Fog Physical Environments, China Meteorological Administration in Chinese Academy of Meteorological Sciences, Beijing, China; Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing, China

  • Cloud Water Engineering Inc. (CWEI), Nanjing, China; Key Laboratory for Cloud, Fog Physical Environments, China Meteorological Administration in Chinese Academy of Meteorological Sciences, Beijing, China

  • Cloud Water Engineering Inc. (CWEI), Nanjing, China; Faculty of Engineering, Computer and Mathematical Sciences, University of Adelaide, Adelaide, Australia

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