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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 211–220Cite as

An Experimental Study of Indoor Air Distribution Characteristics in a Room with Mixing Ventilation and Chilled Ceiling

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

Abstract

A mixing ventilation (MV) system integrated with a chilled ceiling (CC) cooling system will be a potential advanced heating, ventilation and air conditioning (HVAC) system in the modern office buildings. In this paper, an experimental study of the air distribution characteristics in a room with MV and CC was performed when considering the effect of the heat transfer of external envelope. The distributions of indoor air temperature and velocity were measured and evaluated by the vertical air temperature difference and turbulence intensity, respectively. The results showed that when chilled ceiling surface temperature ranged from 17.0 to 26.0 °C and supply air temperature was 16.0–22.0 °C, the increased trend of vertical air temperature was gradually switched to the decreased trend along the vertical direction, and the vertical air temperature differences in occupied zone were all not exceeded 0.4 °C. The average turbulence intensity was 30–41% when the internal and external sensible cooling loads equal 41.5 W/m2. The range of these evaluation indices varied clearly when the internal sensible cooling load increased from 41.5 to 69.5 W/m2, whereas they were almost the same when the external sensible cooling load increased from 41.5 to 69.5 W/m2.

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References

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Acknowledgements

This study was funded by National Natural Science Foundation of China (Grant number 51408482&51808091) and supported by “the Fundamental Research Funds for the Central Universities” (Project number DUT17RC (3)086).

Author information

Authors and Affiliations

  1. College of Civil Engineering and Architecture, Dalian University, Dalian, China

    Jie Gao

  2. School of Civil Engineering, Dalian University of Technology, Dalian, China

    Pin Lv, Xiaozhou Wu & Shugang Wang

  3. School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an, China

    Fenghao Wang

Authors
  1. Jie Gao
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  2. Pin Lv
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  3. Xiaozhou Wu
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  4. Shugang Wang
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  5. Fenghao Wang
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Corresponding author

Correspondence to Xiaozhou Wu .

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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Gao, J., Lv, P., Wu, X., Wang, S., Wang, F. (2020). An Experimental Study of Indoor Air Distribution Characteristics in a Room with Mixing Ventilation and Chilled Ceiling. 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_23

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