Experimental Analysis of Residential Ventilation and Dehumidification Strategies in Chongqing

E3S Web of Conferences. 2019;111:01004 DOI 10.1051/e3sconf/201911101004

 

Journal Homepage

Journal Title: E3S Web of Conferences

ISSN: 2267-1242 (Online)

Publisher: EDP Sciences

LCC Subject Category: Geography. Anthropology. Recreation: Environmental sciences

Country of publisher: France

Language of fulltext: French, English

Full-text formats available: PDF

 

AUTHORS

Zhang Xin (Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University)
Liu Junjie (Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University)
Dai Xilei (Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University)
Pei Jingjing (Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University)

EDITORIAL INFORMATION

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Time From Submission to Publication: 6 weeks

 

Abstract | Full Text

As a typical representative city of China’s hot and humid climate zone, Chongqing has an average annual relative humidity of 70% - 80%. Continuous online monitoring of indoor air quality (IAQ) were conducted in more than 20 residents of Chongqing city. It was found that the apartments in the area had excessive indoor absolute humidity in summer (far exceed the ASHRAE recommended comfort limit—12g/kg) and excessive indoor relative humidity in winter and transitional seasons. It is necessary to dehumidify the outdoor intake air during the summer and decrease the indoor related humidity during the winter and transition seasons. Based on the above two points, it is proposed to adopt a fresh air system with dehumidification function in Chongqing, which can remove excessive absolute humidity caused by outdoor air in high humidity month. The fresh air system, which changes natural ventilation to mechanical ventilation, increase indoor insulation effect and reduce relative humidity.