Simulation on auxiliary ventilation of courtyard sunspace passive solar house

According to climatic and abundant solar radiation characteristics of Qingdao, the courtyard sunspace passive solar house was built. The sunspace temperature distribution and indoor ventilation quantity mathematical model was established based on its heat transfer theory. The courtyard sunspace temperature and auxiliary ventilation quantity were simulated, the simulated results were the same basically with experiment results, it showed that sunspace auxiliary ventilation mathematical model was correct, and the maximum ventilation quantity reached 160m³/h using courtyard sunspace auxiliary ventilation, which meet the demand of rural residential ventilation quantity.