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Field measurement and questionnaire survey on indoor environment in typical coastal villages of Qingdao (China) during the heating period
- Source :
- Case Studies in Thermal Engineering, Vol 26, Iss, Pp 101048-(2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- The rural living environment, especially for thermal environment and air quality, has always been concerned during the heating period. This study conducted a field measurement and questionnaire survey of indoor air quality in five villages in the cold rural coastal region of Qingdao, China. This area experiences the more extreme weather conditions, compared to the inland region. The sixty rural buildings were selected, while the basic characteristics, heating methods, indoor thermal environment, and air quality were recorded. Results showed the main heating method is the coal-fired stove combined with other radiators. The neutral values of indoor air temperature and relative humidity are 13 °C and 40% for local residents, which are much less than the comfortable levels. However, local residents demonstrated the ability to independently regulate temperature and humidity levels to within comfortable levels. And The coal combustion increases the indoor smell intensity and pollute indoor air. The CO2 concentration can be up to 1015.47 ppm and 690.78 ppm in rooms with and without the stove in the activity room respectively, while PM2.5 concentration can reach up to 199.6ug/m3 and 62.9ug/m3 respectively. These concentration values are much higher than the relative standards and the present air quality is very harmful to the human health.
- Subjects :
- Fluid Flow and Transfer Processes
020209 energy
Environmental engineering
Coal combustion products
Humidity
Questionnaire
02 engineering and technology
Engineering (General). Civil engineering (General)
01 natural sciences
010406 physical chemistry
0104 chemical sciences
Coastal villages
Extreme weather
Indoor air quality
Stove
Air quality
Indoor thermal environment
0202 electrical engineering, electronic engineering, information engineering
Environmental science
Relative humidity
TA1-2040
Engineering (miscellaneous)
Air quality index
Subjects
Details
- ISSN :
- 2214157X
- Volume :
- 26
- Database :
- OpenAIRE
- Journal :
- Case Studies in Thermal Engineering
- Accession number :
- edsair.doi.dedup.....e30ff93a918a80b36c26aaa4b04c8cdf