首页|Application of multi-zone airflow modeling in the investigation of climate-regulating effects of courtyards
Application of multi-zone airflow modeling in the investigation of climate-regulating effects of courtyards
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NETL
NSTL
Elsevier
Courtyard houses, known for their climate-responsive design, have evolved unique characteristics tailored to local climates and cultures. Their climate-regulating effects on adjacent spaces can enhance indoor hygrothermal conditions, building energy performance, and occupant thermal comfort. However, conventional thermal building simulations often treat courtyards' hygrothermal conditions as identical to outdoor environments, overlooking dynamic interactions between open or semi-open courtyards and indoor spaces. This simplification risks underestimating their benefits. To address this gap, this study employs multi-zone airflow modeling integrated with WUFI (R) Plus to assess its performance in investigating the climate-regulating effects of courtyards based on case studies. Two traditional courtyard houses in Tongren, China, under summer (unoccupied) and winter (occupied) conditions are investigated. By incorporating dynamic, user-dependent ventilation behaviors, the model achieves strong alignment with monitored data, with Normalized Mean Bias Errors below 10 %, Coefficient of Variation of Root-Mean-Square Errors below 20 %, and Coefficients of Determination for air temperature exceeding 0.75. Results demonstrate the model's capacity to accurately predict air temperature in courtyard spaces and adjacent rooms, particularly in warm periods when heat mitigation is significant. During colder periods, the model's ability to estimate air change rates offers a valuable advantage over conventional thermal building simulation methods for naturally ventilated buildings.
NETL
NSTL
Elsevier
