Air change rates at night in northeast Chinese homes

Air change rates at night in northeast Chinese homes Air change rate data for dwellings in China are scarce. We carried out a study of ventilation rates in 399 homes in Tianjin and Cangzhou, China. Carbon dioxide concentration was continuously measured for 24 h in bedrooms and living rooms. The air change rate at night was calculated using a single zone mass balance model. In the whole home, the median air change rates during sleeping time for spring, summer, autumn and winter were 0.27 h−1, 1.11 h−1, 0.29 h−1, 0.30 h−1. In the child's bedroom with closed window and door, the median air change rates during sleeping time for spring, summer, autumn and winter were 0.25 h−1, 0.25 h−1, 0.30 h−1, 0.37 h−1. Air change rates in homes with open windows were significantly higher than those in homes with closed windows (p = 0.000). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Building and Environment Elsevier

Air change rates at night in northeast Chinese homes

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Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier Ltd
ISSN
0360-1323
D.O.I.
10.1016/j.buildenv.2018.01.030
Publisher site
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Abstract

Air change rate data for dwellings in China are scarce. We carried out a study of ventilation rates in 399 homes in Tianjin and Cangzhou, China. Carbon dioxide concentration was continuously measured for 24 h in bedrooms and living rooms. The air change rate at night was calculated using a single zone mass balance model. In the whole home, the median air change rates during sleeping time for spring, summer, autumn and winter were 0.27 h−1, 1.11 h−1, 0.29 h−1, 0.30 h−1. In the child's bedroom with closed window and door, the median air change rates during sleeping time for spring, summer, autumn and winter were 0.25 h−1, 0.25 h−1, 0.30 h−1, 0.37 h−1. Air change rates in homes with open windows were significantly higher than those in homes with closed windows (p = 0.000).

Journal

Building and EnvironmentElsevier

Published: Mar 15, 2018

References

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