Study on the dynamic natural ventilation rates of occupied residence

The residential natural ventilation rates have a significant impact on indoor thermal comfort and air quality building energy consumption. characteristics of the indoor-outdoor temperature difference wind pressure change over time, as well occupants' window opening behavior use HVAC systems, resulting in rate being dynamic with time. Many previous studies measured steady-state rates, which does not reflect actual characteristics. In this study, field measurement was conducted bedroom one Beijing continuously monitoring CO 2 concentration, temperature, outdoor meteorological parameters for year. Using released by occupants tracer gas, extended Kalman filter based Transient Mass Balance Equation (TMBE) adopted to calculate rate. This method can effectively concentration noise. trend each influencing factor analyzed. study is expected lay foundation future buildings.