Simulation study of an innovative ventilated facade utilizing indoor exhaust air

This paper presents a simulation study on an innovative ventilated façade utilizing indoor exhaust air. A numerical model of the basic ventilated façade module was developed and validated with the experimental data. The study investigated the energy saving of the ventilated façade in the heating and cooling seasons. The effects of the configuration of the materials in the ventilated façade and the impacts of the cavity air flow rate on the thermal performance of the façade were also studied. The results proved the ventilated façade has excellent energy saving performance in comparison with the façade with its cavity closed. The appropriate design of the façade configuration and the cavity air flow rate were also provided.