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Numerical Study on Pollutant Removal Performance of Vortex Ventilation in Different Pollutant Locations

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Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019) (ISHVAC 2019)

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

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Abstract

This study presents the flow trajectory, pollutant distribution of vortex ventilation with different pollutant source locations. It turns out that due to pressure gradient of column vortex, the pollutant can be inhaled by the vortex after releasing when the sources are in the vortex zone. Meanwhile, due to the obvious tangential velocity and radial velocity of the column vortex, the flow trajectory of pollutant in vortex ventilation is close to a logarithmic spiral, which means that the farther the pollutant source from the vortex center, the longer the path of pollutant is, and the larger the pollution range is. The results indicate that the pollutant source should be in the range of vortex zone in the design, and it will reach the best performance when the pollutant source is just near the vortex core.

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Acknowledgements

This work was supported by the National Key Research and Development Program of China (Grant No. 2018YFC0705300), the National Science Fund for Distinguished Young Scholars of China (No. 51425803) and Shaanxi Provincial Key Science and Technology Innovation Team (2017KCT-14).

Author information

Authors and Affiliations

  1. State Key Laboratory of Green Building in Western China, Xi’an, University of Architecture and Technology, Xi’an, China

    Zhixiang Cao, Chao Zhai, Tongtong Zhao & Yi Wang

  2. School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an, China

    Zhixiang Cao, Chao Zhai, Tongtong Zhao & Yi Wang

Authors
  1. Zhixiang Cao
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  2. Chao Zhai
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  3. Tongtong Zhao
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  4. Yi Wang
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Corresponding author

Correspondence to Zhixiang Cao .

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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Cao, Z., Zhai, C., Zhao, T., Wang, Y. (2020). Numerical Study on Pollutant Removal Performance of Vortex Ventilation in Different Pollutant Locations. 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_8

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