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

  • Dalian University
  • Dalian University of Technology

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

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.

源语言英语
主期刊名Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019 - Volume 1
主期刊副标题Indoor and Outdoor Environment
编辑Zhaojun Wang, Fang Wang, Peng Wang, Chao Shen, Jing Liu, Yingxin Zhu
出版商Springer
211-220
页数10
ISBN(印刷版)9789811395192
DOI
出版状态已出版 - 2020
活动11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019 - Harbin, 中国
期限: 12 7月 201915 7月 2019

出版系列

姓名Environmental Science and Engineering
ISSN(印刷版)1863-5520
ISSN(电子版)1863-5539

会议

会议11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019
国家/地区中国
Harbin
时期12/07/1915/07/19

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